Csat Iron or Stainless Steel Penstock for Water and Wastewater Control
This premium-grade Penstock (Sluice Gate) is designed to provide highly reliable flow isolation and fluid control for water management infrastructure. Available in both robust Cast Iron and corrosion-resistant Stainless Steel constructions, with options for Square, Rectangular, or Round (Circular) apertures, this penstock is the ideal solution for modern municipal, industrial, and agricultural water systems.
⚙️ Versatile Material Options: Choose heavy-duty Cast Iron (GG25/GGG40) for excellent mechanical strength and wear resistance in general water works, or premium Stainless Steel (SS304/SS316L) for superior corrosion resistance in aggressive wastewater and chemical environments.
📐 Aperture Configurations: Available in Square, Rectangular, and Round profiles to perfectly match circular pipelines or rectangular concrete channel openings without flow restriction.
🛡️ Bi-Directional Leak-Tight Sealing: Utilizes high-performance elastomeric seals (EPDM/NBR/Neoprene) to guarantee zero-leakage performance under both seating and unseating water head pressures.
🎛️ Flexible Actuation: Standard modular mounting plates allow for seamless integration with manual handwheels, bevel gearboxes, electric actuators, or pneumatic/hydraulic cylinders.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Aperture Shape | Square, Rectangular, and Round (Circular) |
| Size Range | Square/Rectangular: 150x150mm to 3000x3000mm Round: DN150 to DN3000 (Custom sizes available) |
| Body & Gate Material | Cast Iron (GG25 / GGG40 / GGG50) Stainless Steel (SS304 / SS316 / SS316L) |
| Stem & Spindle Material | Stainless Steel 304 / 316 |
| Seal Material | EPDM, Metal-to-Metal |
| Mounting Type | Wall Mounted (Anchor Bolted directly to flat concrete walls) |
| Applicable Standards | AWWA C561, AWWA C560, BS 7775, DIN 19569 |
| Actuation Options | Manual Handwheel, Electric Actuator, Pneumatic/Hydraulic Cylinder |
This highly adaptable penstock is widely used in municipal sewage treatment works, water filtration plants, industrial effluent channels, flood control systems, power station cooling water inlets, and agricultural irrigation networks. Veyron Valve provides fully customized frame heights and stem extensions to fit your specific civil concrete structure dimensions, ensuring easy installation with minimum site modifications.
Sizing the Gate to the Structure
Penstocks are made to fit the opening that already exists, so the dimensions that matter are the civil ones. Please provide: the clear opening width and height (or the pipe bore for a round aperture), the wall thickness at the fixings, the maximum water head above the sill, and the centre-line elevation of the opening. From these we confirm the frame size, the anchor-bolt pattern, the guide rail height and the stem extension. Oversizing the frame is not a safety margin — it forces the contractor to modify the concrete to make the gate fit.
Sealing Methods and Where Each Belongs
| Sealing arrangement | Tightness | Typical application | Notes |
| EPDM elastomeric seat | Bi-directional, leak-tight under head pressure | Municipal wastewater, storm water, irrigation, general water works | Best general-purpose choice; tolerates minor surface irregularities and small debris |
| Metal-to-metal | Tight, mechanical contact | High-temperature or chemically aggressive service where elastomer life is short | Higher operating effort; used where elastomers would degrade quickly |
| NBR / Neoprene | Bi-directional, leak-tight | Specific media compatibility requirements, e.g. oils or particular effluent chemistry | Selected against the actual medium rather than by default |
For wastewater and potable water infrastructure, EPDM is the default specification and covers the large majority of municipal projects. Metal-to-metal seating is specified where the medium or the temperature would destroy an elastomer, and it should be treated as an engineering decision rather than a substitution, because the required operating torque is noticeably higher.
Mounting and Structural Notes
The gate is anchor-bolted directly to a flat concrete face, so the seating face must be straight and plumb — the most common site problem on penstock installation is a wall face that is out of tolerance, which shows up later as leakage at the sill. Where the structure cannot be corrected, we can supply a fabricated frame with a matching face. Low-friction guide rails take the lateral load and keep the operating effort low even on a large, heavily loaded gate.
FAQ
How do I measure the opening size?
Measure the clear opening in three places — width and height — and give us the smallest figure. Include the wall thickness and the head of water above the sill.
Which seal should I specify for a municipal wastewater plant?
EPDM seating, bi-directional, is the standard specification and is what we supply for the majority of treatment plant projects.
Can the penstock be installed in an existing concrete structure?
Yes, provided the seating face is flat and within tolerance. We supply custom frame heights and stem extensions so the gate fits as-built dimensions rather than as-drawn ones.
Is a penstock suitable for a pressurised pipe?
No. A penstock seals an open channel or wall opening against a water head; pressurised pipe isolation needs a valve.
Do you supply the actuator with the gate?
Yes — manual handwheel, electric actuator or pneumatic/hydraulic cylinder, with a modular mounting plate that allows manual units to be upgraded later.
What do you need to quote?
Opening shape and dimensions, wall thickness, head of water, medium, seal type, actuation and the standard to follow.
Send your working conditions with the opening dimensions and head of water and we will return a frame drawing for approval.