• Resilient seated in accordance with EN 593
• Face-to-face length acc. to EN 558-1, basic series 14 (DIN 3202, F4)
• With flange ends on both sides acc. to EN 1092-2
• Double-offset disk bearing mounted in maintenance-free bushing
• Medium free bearing (dry shaft) in body by means of double O-ring sealing and closed disk eyes
• Wear-resistant, corrosion-resistant and undermining-resistant seat
• Possible to replace profile sealing ring without disassembling the disk
• Automatic sealing system with enclosed and pressure-supported profile sealing ring
• Vacuum tight up to 1 Torr
• Tight in both flow directions acc. EN 1074-2
• With self-locking, fully enclosed, maintenance-free worm gear including mechanical position indicator

• Resilient seated in accordance with BS 5163 part 1 and part 2
• Resilient seated in accordance with EN 1074 part 1 and part 2
• Face-to-face length to EN 558-2 R3 (BS 51663 / ISO 5752 / ANSI B16.10)
• With flange ends on both sides acc. to EN 1092-2
• Low torque due to plastic sliding caps on the wedge
• Maintenance-free and corrosion-resistant stem sealing
• With triple O-ring sealing
• Low wear due to wedge guiding and elongated stem bearing
• Suitable for vacuum of up to 90%

• Body and disk of ductile cast iron EN – JS 1030 (GGG-40)
• Shafts of stainless steel 4021
• Shaft bearings of zinc free bronze
• Seat faces with nickel weld overlay, micro finished. 

• Single chamber type in compact design ensuring easy assem- bly and low space requirements; highly reliable function and low
• Economic solution due to a venting system with three func- tions:
  • Venting,
  • Air release,
  • Automatic air release during
• Guaranteed air discharge even at high air velocities, no interrup- tion of the filling process and high discharge capacity due to the integrated flow
• All parts in touch with the medium are made to KTW and DVGW W 270 requirements, avoids bacterial
• Maintenance possible without shutdown of the pipeline due to pressure relief plug with cross
• Due to optional features such as insect screen or orifice, the valve can be adapted to operating and environmental conditions at a later point of time.
• All metal are made of corrosion proof materials and thus shut-off valve VAG CEREX^ 300-L Butterfly Valve with hand lever.
• Threaded air outlet for the field connection of drainage

• Single chamber type in compact design ensuring easy assembly and low space requirements; highly reliable function and low maintenance.
• Tamper resistant due to special strainer and bonnet design.
• Economic solution due to a venting system with three functions:
  • Large orifice to admission of high quantities of air during draining the pipeline
  • Large orifice to release high quantities of air during filling the pipeline
  • Small orifice to release low quantities of air during operation under pressure.
• Guaranteed air discharge even at high air velocities, no interruption of the filling process and high discharge capacity due to the integrated flow guide.
• All parts in touch with the medium are made to KTW and DVGW W 270 requirements, avoids bacterial contamination.
• All internal parts are made of corrosion proof materials to ensure long life of the valve.

• Double-chamber valve with compact design ensuring easy assembly, low space requirements, highly reliable function and low maintenance.

• Economic solution due to a venting system with three functions:

  • Venting

  • Air release

  • Automatic air release during operation.

• High discharge capacity for large amounts of air possible by special design with air diverter plate.
• Easy maintenance due to lateral pressure relief plug. installation of the valve.

• Air valve with triple function:
  • Large disk cross-section to vent large amounts of air in case of quick shut-down, quick drainage or pipe bursts
  • Medium-sized cross-section to release air while the pipeline is being filled (VAG DUOJET° Automatic Air Valve)
  • Small cross-section to release small amounts of air during operation (VAG DUOJET^ Automatic Air.
• Very high venting capacity for large attached VAG DUOJET^ Automatic Air Valve for air release during operation.
• Friction damper to dampen the closing movement and thus reduce pressure surges.
• Safety guard for the protection of people. 

• Economic solution ensured by a venting system with three func- tions:
  • Venting,
  • Air release,
  • Automatic air release during
• Easy cleaning of the inside ensured by incrustation- and corrosion-free PE plastic body, which makes maintenance fast and
• Easy handling thanks to low
• Maintenance-friendly as all inner function parts can be removed together from
• Low overall height due to specially designed upper
• Optimised air-flow conduction in the upper part ensures high air-release
• The moving functional parts of the valve are located inside the upper part of the valve where they are protected from dirty wa- ter. This ensures high reliability of
• Variable installation position due to lap-joint flange
• Frost-proof due to flexible plastic

• Air valve with double function
  • Small venting cross-section to release small amounts of air during operation,
  • Medium air release capacity for small amounts of
• Compact design ensuring easy assembly, low space require- ments, highly reliable function and low

• Economic solution due to a venting system with three functions:
  • Venting
  • -Air release (high discharge capacity)
  • Automatic air release during operation
• The protective jacket pipe takes over the function of the pit, which eliminates the necessity of investments on site.
• The sturdy, rust-proof unit allows direct buried installation (above-ground or underground installation in a special surface box), which considerably reduces installation
• Jacket pipe can be shortened by 100 mm on site, which ensures flexible adaptation to the installation
• Automatic shut-off towards the pipeline via rubber coated This ensures the reliable and automatic shut-off when the valve is dismantled.
• The screwed fitting serving as drain port allows the discharge of splashed water directly into a suitable drainage pit or via a drain hose.

• With spigot-end connection for connection with VAG BAIO p/Us system components.
• Single-chamber type in compact design.
• High release capacity for large amounts of air. 
• Air valve with triple function:
  • -Large venting cross-section to vent large amounts of air while the pipeline is being emptied.
  • Large venting cross-section to release large amounts of air while the pipeline is being filled.
  • Small venting cross-section to release small amounts of air during operation.
• Corrosion resistant due to boltless connection.
• Pull-out proof due to positive and friction-locked
• Short assembly times due to small number of components and easy assembly or
• Tension-free laying due +/- 3° incline to compensate earth movements.

Butterfly Valve – disk made of stainless steel – wafer-type

• Resilient seated in accordance with EN 593
• Face-to-face length acc. to EN 558, basic series 20 (DIN 3202 / K1)
• Wafer-type for flanges acc. to EN 1092-2
• Centric disk, mounted in three maintenance-free bearing bushes
• For installation between pipe flanges
• Replaceable rubber sleeve with integrated seal for functionally reliable use for flared flanges, welding flanges, PE flanges as well as loose flanges with V-collar
• Stable sealing seat due to collar with vulcanized support ring
• Vacuum tight up to 0,2 bar absolute
• Tight in both flow directions.
• Triple shaft bearing

Butterfly Valve Double flange type

• Resilient seated in accordance with EN 593.
• Face-to-face length acc. to EN 558, basic series 20 or 13 (DIN 3202).
• Flange connection on both sides acc. ANSI B16.1 Class 125/150 or DIN PN 10/16 .
• For bolting between pipe flanges.
• Replaceable rubber sleeve with integrated seal for functionally reliable use for flared flanges, welding flanges, PE flanges as well as loose flanges with V-collar.
• Tight in both flow directions.
• With bare shaft and actuator flange connection acc. to ISO 5211.
• Centric disk, mounted in maintenance-free bearing bushes.
• As end-of-line valve for flange connection to pipeline flanges

• Resilient seated in accordance with EN 16767
• Face-to-face length to EN 558, basic series 48 (DIN 3202, F6)
• With flange ends on both sides to EN 1092-2
• Low pressure loss due to full bore type (100%)
• Double service life due to turnable disk
• Integrated limit stops in the disk to protect the seal
• No bearing friction due to integrated suspension of disk
• Pre-stressed disk closing due to rubber suspension
• Incrustation- and corrosion-free rubber lined disk
• Quick and easy disassembly of body cover and disk for maintenance
• With threaded plug G ¾”

• Triple function air valve
• Single chamber air valve in compact design
• Low weight for easy handling
• Easy to maintain, all internal functional parts can be removed together
• Incrustation- and corrosion-free due to polyethylene PE housing
• Venting function:
  • Large orifice to vent high quantities of air during draining the pipeline
  • Large orifice to release high quantities of air during filling the pipeline
  • Small orifice to release low quantities of air during operation under pressure
• High discharge capacity for large quantities of air
• With flange end to EN 1092-2
• Outlet female threaded to DIN ISO 228 G 1 ¼”, G 2 ½”
• Minimum operation pressure: 1 bar

• Low actuating torque due to pressure balanced valve piston
• With electric actuator
• Control valve in straightway type
• With customized control device depending on operating conditions
• Rotationally symmetrical flow guidance
• Annular flow cross section in each position
• Axial movement of the plunger by means of crank gear mechanism
• With self-locking worm gear unit including position indicator
• Elastic profile sealing ring located in the no-flow zone for high durability
• Wear-resistant, corrosion-resistant and infiltration-proof piston guides in the body by micro-finished bronze weld overlay
• Face-to-face length to EN 558, basic series 15 – from DN 500 1.5 x DN
• With flange ends on both sides to EN 1092-2

• Face-to-face length to EN 558, basic series 1 (DIN 3202, F1)
• With flange ends on both sides to EN 1092-2
• With single strainer
• With drain plug

• Face-to-face length to EN 558-1, basic series 20 (DIN 3202 / K1)
• With flange end to EN 1092-2, PN 10
• Full-flange design, both as wafer type and for pipeline end installation, without additional counter flange at full differential pressure
• Full-flange design with unrestricted flow passage
• Leakproof from both flow directions
• Horizontal sealing adjustable during operation and replaceable with the valve installed in the pipeline
• Scraper installed on both sides of the plate to clean the knife.
• With handwheel

• Designed to meet the most stringent requirements.
• The innovative design with patented hydrodynamic disk, enlarged inner diameter and patented pressure compensation channels minimises pressure loss and turbulences in the outlet area. This re duces energy costs and the distance to downstream installations.
• The bearing bushes with self-lubricating properties ensure a long and reliable service life and low torques.
• The stainless-steel shafts are completely enclosed by double O-ring seals and closed bearing lugs – for the effective corro sion protection of the bearing.
• The wear-resistant, corrosion-proof and infiltration-proof seat with its optimised geometry and high-precision finish ensures the dura bility of the entire sealing system.
• The patented tapered-pin connection ensures the permanently backlash-free connection of the shaft and disk and reliable torque transmission. The complete enclosure of the tapered pins in the disk prevents corrosion. 
• Automatic sealing system in the seat. The operating pressure supports the sealing effect – irrespective of the flow direction. 
• Due to its moulded sealing profile, the profiled sealing ring is chambered between the disk and the retaining ring and so there is no risk of the profiled sealing being pulled out even at high gap velocities.
• Runners in the flange ensure optimum casting quality.
• The advantages of the double-eccentric bearing are:
  • Optimum movement of the profiled sealing ring into the seat
  • Considerable reduction of the shear stress acting on the profiled sealing ring ensuring minimal wear of the profiled sealing ring and a high sealing force at low operating torques
  • Relief of the load on the profiled sealing ring when the valve is in the open position
  • The profiled sealing ring can be replaced with the valve in the open position.

• Proven design for diverse requirements.
• The stainless-steel shafts are completely enclosed by double O-ring seals and closed bearing lugs – for effective corrosion protection of the bearing.
• Wear- and corrosion-resistant, infiltration-proof seat.
• Automatic sealing system in the seat. The operating pressure supports the sealing effect – irrespective of the flow direction.
• Due to its moulded sealing profile, the profiled sealing ring is chambered between the disk and the retaining ring, so there is no risk of the profiled sealing ring being pulled out even at high gap velocities.
• The advantages of the double-eccentric bearing are:
  • Optimum movement of the sealing ring into the seat.
  • Considerable reduction of the shear stress acting on the pro filed sealing ring ensuring minimal wear of the profiled sealing ring and a high sealing force at low operating torques.
  • Relief of the load on the profiled sealing ring when the valve is in the open position.
  • The profiled sealing ring can be replaced with the valve in the open position.

• Nominal pressures PN 6 / 10 / 16
• Nominal diameters DN 200…1200
• Fields of application: Water treatment, water distribution
• Standard version with worm gear; body and disk made of ductile iron EN-GJS-400-15 (GGG-40) Actuator types: – With manual actuator – With electric actuator
• Epoxy coating
• Basic version for the most common water supply applications.
• Seat with epoxy coating.
• The stainless-steel shafts are completely enclosed by double O-ring seals and closed bearing lugs – for effective corrosion protection of the bearing. 
• The self-lubrication properties of the bearing bushes ensure a long and reliable service life.
• Automatic sealing system in the seat. The operating pressure supports the sealing effect – irrespective of the flow direction. Due to its moulded sealing profile, the profiled sealing ring is chambered between the disk and the retaining ring and so there is no risk of the profiled sealing being pulled out even at high gap velocities.
• The advantages of the double-eccentric bearing are:
  • Optimum movement of the sealing ring into the seat;
  • Considerable reduction of the shear stress acting on the pro filed sealing ring ensuring minimal wear of the profiled sealing ring and a high sealing force at low operating torques;
    • Relief of the load on the profiled sealing ring when the valve is in the open position.
    • The profiled sealing ring can be replaced with the valve in the open position.

• Variable use as end of-line valve in version Lug-Type or as connection valve installed between pipelines in version Wafer-Type. 
• The square shaft connection and actuator flange acc. ISO 5211 enable the different actuator elements to be safely and directly connected.
• The shaft and the body cover are built as one component, creating a very stable construction. 
• The two-shaft version ensures low pressure loss in open position of the disk. 
• The shaft bearing by triple plastic slide bearings provides low operating torques and maximum stiffness even after many load cycles. 
• Unattenuated, blow-out-proof drive shaft and triple external O-ring sealing ensure the valve operates reliably and safely. 
• The interchangeable rubber liner with integrated lip sealing provide for a fail-safe operation in flared flanges, welded flanges, PE flanges and individual V-collar flanges.
• The liner with vulcanised retaining ring guarantees a stable seat sealing and permanently low operating torques.

• Variable use as end of-line valve in version Lug-Type or as connection valve installed between pipelines in version Wafer-Type.
• The square shaft connection and actuator flange acc. ISO 5211 enable the different actuator elements to be safely and directly connected.
• The shaft and the body cover are built as one component, creating a very stable construction.
• The two-shaft version ensures low pressure loss in open position of the disk.
• The shaft bearing by triple plastic slide bearings provides low operating torques and maximum stiffness even after many load cycles. 
• Unattenuated, blow-out-proof drive shaft and triple external O-ring sealing ensure the valve operates reliably and safely. 
• The interchangeable rubber liner with integrated lip sealing provide for a fail-safe operation in flared flanges, welded flanges, PE flanges and individual V-collar flanges.
• The liner with vulcanised retaining ring guarantees a stable seat sealing and permanently low operating torques.

• The plastic sliding caps on the wedge reduce the torque. This makes operation easier even after a large number of operating cycles. 
• The high grade materials of the stainless steel stem and the brass bearing bush as well as a triple O-ring seal make this valve resistant to corrosion and maintenance free. 
• Very little abrasion and wear due to the wedge guiding inside the body and a long stem bearing.
• Due to its resistance to vacuum of up to 90%, the valve is ideally suited for suction lines and gas supply lines.
• Testing and registration by DVGW guarantees superior product quality by external monitoring which also takes hygienic aspects into consideration.

• The boltless cover connection seals automatically and is supported by the pressure. This reduces the corroding surface in case of buried installation and avoids any unnecessary stress points on cover bolts.
• The plastic sliding caps on the wedge reduce the torque. This makes operation easier even after a large number of operating cycles.
• The high grade materials of the stainless steel stem and the brass bearing bush make the valve resistant to corrosion and maintenance free.
• Very little abrasion and wear due to the wedge guiding inside the body and a long stem bearing.
• Due to its resistance to vacuum of up to 90%, the valve is ideally suited for suction lines. 
• Testing and registration by DVGW guarantees superior product quality by external monitoring which also takes hygienic aspects into consideration.

• With spigot-end connection on one side and flange connection to EN 1092-2 on the other.
• Boltless, self-sealing (cover) connection prevents corrosion.
• Low torque due to plastic sliding caps on the wedge and thus easy to operate. 
• Spigot end with locking cams for internal locking. 
• Pull-out proof thanks to internal and external bayonet connection; no counter-bearing needed.
• Short assembly times due to small number of components.
• Tension-free laying due +/- 30 incline to compensate earth movements. 
• Variable use with ductile iron pipes and plastic pipes by simple exchange of the sealing rings. 
• Maintenance-free and corrosion-proof stem seal.
• Low wear due to wedge guide in the body and long stem bearing.
• Also suitable for vacuum of up to 90% and thus suitable for suction lines.

• With socket connection on both sides.
• Boltless, self-sealing (cover) connection prevents corrosion.
• Low torque due to plastic sliding caps on the wedge, thus easy to operate.
• Socket designed as double-function socket for internal and external locking in accordance with DIN 28603; thus universal use with all materials.
• Pull-out proof thanks to internal and external bayonet connection; no counter-bearing needed.
• Short assembly times due to small number of components. 
• Tension-free laying due +/- 3° incline to compensate earth movements. 
• Variable use with ductile iron pipes and plastic pipes by simple exchange of the sealing rings. 
• Maintenance-free and corrosion-proof stem seal.
• Low wear due to wedge guide in the body and long stem bearing.
• Also suitable for vacuum of up to 90% and thus suitable for Suction lines.

• With socket connection on one side and spigot-end connection on the other.
• Boltless, self-sealing (cover) connection prevents corrosion. 
• Spigot end with locking cams for internal locking. 
• External bayonet connection between the spigot end of the pipe and the BAIO®plus socket. 
• Pull-out proof thanks to internal and external bayonet connection; no counter-bearing needed. 
• Short assembly times due to small number of components. 
• Tension-free laying due +/- 3° incline to compensate earth movements. 
• Variable use with ductile iron pipes and plastic pipes by simple exchange of the sealing rings. 
• Maintenance-free and corrosion-proof stem seal.
• Low wear due to wedge guide in the body and long stem bearing.
• Also suitable for vacuum of up to 90% and thus suitable for suction lines.

• Maintenance-free due to internal stem thread and stem bearing with O-rings (no stuffing box). 
• Long service life ensured by stainless steel seat rings. 
• Stainless steel rings suitable for many different applications.
• With regard to operating pressure, resistance to high temperatures up to 200 °C.

• High strength ensured by ductile cast iron. 
• Resistant to the medium due to seat rings and stem nut made of zinc-free bronze. 
• Resistant to the medium due to the 17% Cr stem design. 
• Available in rising stem version for heavily polluted media. 
• Epoxy-based coating quality with a coating thickness of at least 250um ensures long-term protection against atmospheric influences.

• High strength ensured by ductile cast iron. 
• Resistant to the medium due to seat rings and stem nut made of zinc-free bronze.
• Resistant to the medium due to the 17% Cr stem design. 
• As special type with external stem thread suitable for heavily polluted media. 
• Tested epoxy-based coating quality with a coating thickness of at least 250um ensures long-term protection against atmospheric influences.

TOP-STOP® Non-Return Valve

• Due to the tilting disk, the stroke is shortened by about 30°. This results in shorter closing times, less backflow and reduced slamming of the disk.
• Disk swings and opens easily even at low flow velocities. This results in low headless and pumping capacity (saving energy). 
• Minimum space required for installation due to short face-to face length and no external assembly components.
• No external shaft bushes due to the slanted seat design, no lever and weight required for assisted closing. Therefore no frictional sealing required and no hazardous external moving parts. 
• Maintenance-free metallic sealing by way of a micro finished high-alloy weld overlay which ensures corrosion and wear resistant sealing faces. Additional internal damping units for the reduction of pressure surges – can also be retrofitted. Approximately 10-15 % before the final closed position, the damper takes effect and the disk moves slowly into the seat dampening the pressure surge and without slamming.

• Optimum damping of pressure surges caused by quick flow reversal due to pre-tensioned elastic diaphragm.
• Low space requirement due to compact design.
• At flow reversal, the circular diaphragm closes quickly, emitting little noise. Therefore no metallic slamming while the valve is closing. 
• Quick and safe response and extremely short closing times due to almost inertial less diaphragm.
• Pre-formed diaphragm ensures safe and reliable operation in any installation position. 
• No mechanic moving parts internally or externally. This reduces maintenance and ensures optimum accident prevention in the operating area. 
• Maintenance-friendly due to easy replacement of the diaphragm. 
• Integrated plugs allow the simple assembly of a bypass on site.

• The low-resistance disk suspension ensures the opening of the valve even at low differential
• Low pressure loss due to the optimised shape of the body with a 90 % opening degree of the
• The smooth disk with no sharp edges minimises the deposit of dirt particles and makes the valve also suitable for polluted media (wastewater).
• No friction of the bearings due to integrated suspension of the disk and therefore no wear.
• The suspension of the disk with pre-formed rubber joint accelerates and supports the closing movement of the disk to reduce pressure
• The rubber joint prevents the jamming or clogging of the disk suspension even in polluted
• For maintenance purposes the disk can be reversed and used on both sides (integrated spare part), which doubles the life expectancy of the valve.
• Maintenance-friendly due to large cover for easy maintenance of the disk.
• An optional lifting device allows lifting of the disk allowing filling or purging of the
• The optional bypass valve allows bypassing even at full operating

RETA Check Valve

• Little pressure loss due to optimized body design with a 90 % opening degree of the
• Safe and reliable function due to flexible and dampened double bearing of the
• Low-wear bearing of the shaft ensured by low-friction bronze
• Peggable in flow direction due to the large opening degree of the
• Large cleaning cover and thus fast, easy and maintenance- friendly cleaning of the disk by turning it out and without the need of
• Easy replacement of the disk ensured by O-ring inserted in the disk.
• Shortened stroke due to the slanted seat of the This results in a reduced closing time, less backflow and less intensive impact of the disk.
• Very long service life due to dampened limit stop of the disk in the body.
• Easy assembly thanks to suspension

• Low pressure loss due to the optimized shape of the body with a 90% opening degree of the
• Can be adapted to different plant conditions as it can be used in both horizontal and vertical (flow from bottom to top)
• Maintenance-friendly due to cover for easy replacement of the disk.
• Available with or without lever and weight for optical position
• The optional bypass valve allows operation even at full operating

• Resistance to media due to the use of premium-quality
• Depending on its type, the valve can be used for various plant conditions as well as in horizontal or vertical
• Maintenance-friendly due to large inspection

• The ball is lifted into the dome by the flow and releases the full passage.
• Free flow cross-section without any edges provides optimum suitability for use with polluted media (wastewater) and minimizes the risk of
• Low pressure loss due to optimized body shape with free passage and thus low flow
• Prevents back flow even at low differential pressure by making use of the ball-check
• The ball-check principle allows shut-off in all
• Maintenance-friendly due to large opening for cleaning the
• No mechanically moved parts on the inside and This reduces wear and maintenance work and ensures optimum accident prevention in the operating area.

• Short closing time due to design of the
• Applicable for low pressure
• Easy installation between pipeline flanges

• The electric actuator allows the start-up of the pump against the closed valve; slow opening and closing for normal pump
• In the event of a failure of the pump, the motor or the power supply, closing of the spring-loaded disk is possible independent of the electric
• The opening and closing times of the electrically operated valve can be adjusted in dependence of the operating conditions, which allows the optimum control of pressure
• Any kind of maintenance work can be performed from above through the body, eliminating the need to dismantle the valve from the pipeline.
• Seat, stem and internal fasteners made of corrosion-resistant stainless steel, which ensures a long service
• The replaceable, abrasion-resistant UHMWPE seat ensures permanent leak-tightness in the

• The low-resistance flap suspension ensures the opening of the valve even at low differential
• For diskharge above and below the external water
• Corrosion-resistant due to the use of rust-proof
• Equipped with an attachment possibility for manual opening of the flap valve.
• Damping of the flap via the circumferential
• Maintenance-friendly due to few moved
• Low weight due to the PE-HD material
• Wide range of applications due to various attachment possibilities (fixing by dowels, insertion, flange mounting).