Penstock Valve - DN100-DN300, SS304, Wall Mounted
A robust range of wall-mounted penstock valves for fluid control and isolation that operates via a sliding gate that acts upon a mechanically controlled spindle, square cap, gearbox or actuator.
T-T Flow’s bi-directional penstocks are available with a square, rectangular or round aperture, resilient sealing to all four sides, flush invert, non-rising stem and robust closed frame. They are fabricated in stainless steel to ensure durability for reliable isolation.
Suitable for isolation duties in water, wastewater and process applications.
Product Information
Penstock Valve - DN100-DN300, SS304, Wall Mounted
Features
- Bi-directional with resilient sealing to all sides
- Fabricated in stainless steel to EN10088 1.4201 (304) or 1.4401 (316) with complementing fasteners
- Non-rising rolled stainless steel spindle, rising spindle on request
- Self-cleaning high-density polyethylene gate guides for reduced friction
- Self-adjusting EPDM seals for optimal sealing performance
- Seating pressure: 6MwC on/off seat
Benefits
- Designed and manufactured in the UK
- Lightweight design
- Excellent performance
- Corrosion resistant
What materials are commonly used in penstock valves?
Penstock valves are usually manufactured in 304 or 316 stainless steel for its corrosion resistance, durability and strength, allowing them to withstand submersion, repetitive mechanical stress and high-pressure flow in water and waste management applications.
What are the maintenance requirements for penstock valves?
Implementing regular maintenance for your penstock valve will ensure smooth operation and a tight seal for effective flow control and isolation.
We recommend a service schedule of every 6-12 months based on frequency of usage and the medium the penstock valve is exposed to. Visual checks and operating tests should be performed frequently to ensure the valve is operational in the case of an emergency.
- Visual inspections – Check the valve’s seal and fixings for signs of wear, damage or corrosion and replace if necessary.
- Cleaning – Remove any silt, debris or other deposits that have collected, paying close attention to the penstock’s seals, guides and spindle.
- Lubrication – Check and relubricate moving parts as necessary with a suitable grease.
- Regular operation – Operate the valve regularly to ensure full range of motion and prevent seizure.
What are the differences between rising spindle penstock valves and non-rising spindle penstock valves?
Rising spindles are attached to the valve gate or disc. When the valve is operated the spindle rises and lowers and moves the gate/disc in the same direction to open or close the valve. This provides operatives with a clear visual indication of the valve’s position and is easy to maintain, with the exposed spindle allowing for visual inspections and lubrication.
Non-rising spindles feature a captive nut attached to the valve gate/disc and a threaded stem – as the stem rotates, the nut travels along the thread and moves the gate/disc to the desired position to allow or isolate flow. Non-rising spindles are ideal for tight areas as they require less vertical space to operate and are completely enclosed in the valve body, protecting them from external elements.
What are the typical applications for penstock valves?
Penstock valves can be found in agricultural, industrial, environmental and municipal applications, including:
- Water treatment works
- Irrigation systems
- Sewage networks
- Outfalls
