VAG Knife-Gate Valves and Penstocks

VAG ZETA® Knife-Gate Valve up to DN 600

4. Scraper

U-Seal

3. Thrust profile

Thrust piece

1. Lateral seal

2. Sliding rod

Technische Details

• Flange connection to EN 1092-2, PN 10

• Maximum operating pressure PS 6/8/10 bar

• Nominal diameters DN 50 … DN 600

• Field of application: Wastewater

• Face-to-face length to EN 558-1 Basic series 20 (DIN 3202 K1)

• Standard type: Body parts made of EN-JL 1040 (grey cast iron 25), bearing plate and thrust piece made of EN-JS 1030 (DCI 40), U-seal and lateral seal made of elastomer (NBR), sheet-metal yoke structure made of stainless steel grade 1.4301, knife made of stainless steel grade 1.4301, stem made of stainless steel 1.4021

• Internally and externally epoxy coated

• Types of actuation: - With handwheel - With hand lever - With electric actuator - With pneumatic actuator

• Special types: - With stem made of stainless steel grade 1.4057 - With knife made of stainless steel grade 1.4571 - With encapsulated yoke for submerged installation

Product features

•Fully flanged valve, can be used as wafer-type or end-of-line valve without additional counter-flange at full operating pressure.

•Free passage prevents deposits in the valve bore.

•Tight in both flow directions. This prevents installation errors.

• Integrated scraper profiles on both sides for continuous cleaning of the knife increases the safety of operation and the service life.

•The lateral seal can be readjusted during operation and re-placed without dismantling the valve from the pipeline. This reduces maintenance time and downtime.

•The soft, profiled, elastic lateral guide of the knife ensures fail-safe sealing function.

•The specially profiled seal width in the bottom passage reduces maintenance work and guarantees safe operation.

•The compact body with stainless steel sheets effectively protects the valve against dirt and atmospheric influences.

Guard

Knife

Body

1

2

3

4

VAG ZETA® Knife-Gate Valve DN 700 and larger

Technical Details


• Maximum operating pressure PS 2/2.5/4 bar

• Nominal diameters: DN 700 … DN 1400



• Standard type: Body parts made of EN-JL 1040 (grey cast iron 25), bearing plate and thrust piece made of EN-JS 1030 (DCI 40), U-seal and lateral seal made of elastomer (NBR), yoke and sheet-metal guard made of stainless steel grade 1.4301, knife made of stainless steel grade 1.4301, stem made of stainless steel 1.4021


• Types of actuation: - With handwheel - With electric actuator

• Special types: - With stem made of stainless steel grade 1.4057 - With knife made of stainless steel grade 1.4571

Produkt features


•Free passage prevents deposits.


• Integrated scraper profiles on both sides for continuous cleaning of the knife increase the safety of operation and the service life.

•The lateral seal can be readjusted during operation and re-placed without dismantling the valve from the pipeline. This reduces maintenance time and downtimes.

•Specially profiled lateral seal with double Quadring profile and integrated PTFE sliding rods for optimum guiding of the knife.

•The bearing of the knife and its axial guiding by PTFE sliding rails with elastic bearing reduce operation forces.

•The soft, profiled and elastic lateral guide of the knife ensu-res fail-safe sealing function.

•The specially profiled seal width in the bottom passage ensures that the valve is drop-tight.

Protection panel

U-seal

1. Lateral seal

1

3

2

3. Scraper

Slide rail

Knife

2. Sliding rod

VAG ZETA® control Knife Gate Valve

Technical Details


• Maximum operating pressure PS 6/8/10 bar




• Standard type: Body parts made of EN-JL 1040 (grey cast iron 25), bearing plate and thrust piece made of EN-JS 1030 (DCI 40), U-seal and lateral seal made of elastomer (NBR), protection panels made of stainless steel grade 1.4301; orifice plate made of stainless steel grade 1.4571, knife made of stainless steel grade 1.4571 or 1.4301 (DN 400 – 600), stem made of stainless steel grade 1.4057 (DN 50 – 350) or stainless steel grade 1.4021 (DN 400 – 600), stem nut made of brass


• Types of actuation: - With handwheel - With electric actuator - With pneumatic actuator

• Special types: - With stem made of stainless steel grade 1.4057 (DN 400...

600) - With knife made of stainless steel grade 1.4571 (DN

400...600)

Product features


• Free passage prevents deposits.


• Integrated scraper profiles on both sides for continuous cleaning of the knife increase the safety of operation and the service life.

• The lateral seal can be readjusted during operation and re-placed without dismantling the valve from the pipeline. This reduces maintenance time and downtimes.

• Integrated orifice plate with optimised control characteristic and free bottom passage.

•The mechanical position indicator of the knife makes the adjustment of the opening degree easier.

4. Scraper

U-seal

3. Thrust profile

Thrust piece

Orifice plate

1. Lateral seal

2. Sliding rod

Protection panel

Position indicator

Knife

1

2

3

4

VAG MONO Knife-Gate Valve with handwheel

Technische Details


• Maximum operating pressure PS 10 bar



• Standard type: Body parts made of EN-JS 1030 (DCI 40), chambered O-ring made of NBR, pressure pipe and forked part made of stainless steel grade 1.4571, knife made of stainless steel grade 1.4301, stem made of stainless steel grade 1.4021, counter-flange made of steel St35



• Special types: - Stem made of stainless steel grade 1.4057 - Knife made of stainless steel grade 1.4571 - For buried installation

Product features

•Single piece monobloc body reduces the risk of corrosion.

•Completely chambered knife ensures fail-safe sealing func-tion.

• With flush connection (G ¼”) as a standard; prevents clog-ging of the pipelines.

• No lateral seal on the knife to ensure extreme ease of opera-tion.

• Single maintenance-free shaft seal with additional scrapers increases the service life.

Scraper rings

Stem nut

Pressure pipe

Flush connection Closed body

Knife wedge

Knife

VAG MONO Knife-Gate Valve with hand lever

Technical Details


• Maximum operating pressure PS 10 bar



• Standard type: Body parts made of EN-JS 1030 (DCI 40), chambered O-ring made of NBR, pressure pipe and forked part made of stainless steel grade 1.4571, knife made of stainless steel grade 1.4301, counter-flange made of steel St35


• Type of actuation: Hand lever

• Special types: - Stem made of stainless steel grade 1.4057 - Knife made of stainless steel grade 1.4571

Product features

• One-piece monobloc body reduces the risk of corrosion.

• Completely chambered knife ensures fail-safe sealing func-tion.

• With flush connection (G ¼”) as a standard; prevents clog-ging of the pipelines.

• No lateral seal on the knife to ensure extreme ease of opera-tion.

• Single maintenance-free shaft seal with additional scrapers increases the service life.

Scraper rings

Flush connection

Closed body

Hand lever

Knife wedge

Knife

VAG ERI® Penstock

Technical Details

• Nominal pressures 4/6 mWC

• Nominal diameters 150 x150 … 1200 x 1200

• Fields of application Water, wastewater

• Standard type: Frame construction, gate, stem and stem protection made of stainless steel grade 1.4301, stem nut made of zinc-free bronze (resistant to wastewater)

• Sealing system: Wastewater- and UV-resistant EPDM

• All stainless steel components immersion pickled and passivated


• Special types: - Other nominal pressures upon request - Stem thread outside the medium - With orifice plate for regulation - With round bottom - Frame construction, gate, stem, stem protection and key

collars made of stainless steel grade 1.4571

Product features

• Leak-tightness considerably exceeds the DIN 19569 Part 4 requirements.

• Compact valve as self-supporting frame construction; factory-assembled for fast commissioning at the place of installation.

• Non-rising stem and integrated stem bearing require less installation space.

• Integrated and steel-chambered pre-tensioned seal.

• One-piece sealing ring kit can be completely replaced for easy maintenance.

• Square or rectangular shape for wall-mounting with anchor bolts.

• Sealing on four sides.

Closed frame construction

Stem

Stem nut

Gate

Sealing system

VAG ERI®-XL Penstock

Technical details

• Nominal pressure 6 mWC

• Nominal diameters 1200 x 1200 …. 3000 x 3000 (larger nominal diameters possible)

• Fields of application: Water, wastewater


• Sealing system: Wastewater and UV-resistant EPDM

• All stainless steel components immersion pickled and passi-vated


• Special types: - Larger nominal diameters upon request - Customised types upon request - Other nominal pressure upon request - Special materials upon request - With round bottom

Product features





• Pre-tensioned lip seal mounted on the gate.


Stem

Stem nut

Gate


Gate type

VAG ERI®-RS Penstock

Technical details

• Nominal pressures 4/6 mWC





• All stainless steel components immersion pickled and pas-sivated


• Special types: - Larger nominal diameter upon request - Customised types upon request - Other nominal pressure upon request - Special materials upon request

Product features


• With round bottom to match the form of conduits.


•Non-rising stem and integrated stem bearing require less installation space.


•One-piece sealing ring kit (150 x 150 … 600 x 600) can be completely replaced for easy maintenance.

• Pre-tensioned lip seal mounted on the gate (600 x 600 and larger).



Stem

Stem nut

Gate

Round bottom passage



Stem

Stem nut

Gate

Sealing system

VAG ERI® Channel Penstock

Technical Details

• Nominal diameter upon request






• Special types: - Other nominal pressure upon request - Customised types upon request - Stem thread outside the medium - With round bottom - Various mounting possibilities upon request - Frame construction, gate, stem, stem protection and key

collars made of stainless steel grade 1.4571 - Weir -and hand-operated penstock

Product features





• One-piece sealing ring kit can be completely replaced for easy maintenance.


• Sealing on three sides.

VAG EROX® Penstock

Stem bearing

Side guiding

Gate wedge

Guide rail wedge

Sealing ring

Technical Details

• Nominal pressures 6/7/8/10 mWC



• Standard type: Frame construction, gate, key collars, stem and stem protection made of stainless steel grade 1.4301, stem nut made of zinc-free bronze (resistant to wastewater)




• Special types: - Other nominal pressure upon request - Stem thread outside the medium - Frame construction, gate, key collars, stem and stem

protection made of stainless steel grade 1.4571

Product features

• Drop-tight according to DIN EN 12266, Part 1.



• Self-adjusting flexi-ring as sealing system between the gate and structure; no readjustment necessary.

• Floating-mounted flexi-ring to compensate unevenness of the wall in the structure and for reliable sealing.

• Separate sealing and retaining system for easy replacement of the flexi-ring without dismantling the valve.

• Circular form for wall-mounting with anchor bolts.


Gate type

VAG EROX®-Q Penstock

Technical Details


• Nominal diameters DN 150 x 150 … DN 2000 x 2000






• Special types: - Other nominal pressures upon request - Stem thread outside the medium - Frame construction, gate, key collars, stem and stem


Product features




• Self-adjusting flexi-ring as sealing system between the gate and structure; no readjustment necessary.

• Floating-mounted flexi-ring to compensate unevenness of the wall in the structure and for reliable sealing.


• Rectangular form for wall-mounting with anchor bolts.



Stem nut

Gate

Sealing system

VAG EROX®-F Penstock

Technical Details








• Special types: - Other nominal pressure upon request - Stem thread outside the medium - Frame construction, gate, key collars, stem and stem


Product features




• Self-adjusting flexi-ring as sealing system between the gate and pipe flange; no readjustment necessary.


• Circular form for flange mounting to PN 10 flanges (drilling pattern PN 10).


Geschlossene Rahmenkonstruktion

Circular form for flange mounting

Gate guiding

Gate wedge

Sealing system

Industrial park Bitterfeld, Germany

3 VAG EROX® Penstocks

Sewage line Prague,

Czech Republic

3 VAG EROX® Penstocks

Storage reservoirFRAPORT Frankfurt/Main

Germany

12 VAG EROX®-Q Penstocks

Service water system at the EVONIK Degussa plant in Wesseling,

Germany

1 VAG EROX® Penstock

Reference projects

www.vag-group.com [email protected]

Pumping station Kollenhof,Germany

2 VAG ZETA® Knife Gate Valves

Waste-water treatment plant Seebergen,

Germany


Flood protection of Prague, Czech Republic

2 VAG HADE® Non-Return Valves with 2 VAG ZETA® Knife Gate Valves

Biogas plant Euskirchen,Germany


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n 2_

10-1

2-20

12

Reference projects

VAG Knife-Gate Valves and Penstocks

Documents

Transcript of VAG Knife-Gate Valves and Penstocks