Piston Control Valves
PLV type piston control valves are resistant to high hydraulic loads. They are designed for regulating water flow in water distribution systems, hydroelectric power generation, and industrial applications. Control valves designed and manufactured by TB Hydro are optimized to minimize the loss coefficient and reduce cavitation.
Installation length and connections are according to EN/ASME standards or individual requirements.
Diameter:
Wide range of diameters from 300 to 2000 mm.
Pressure:
Pressure range up to 25 bar.
Sealing:
Soft Seal + Metal-to-Metal
Additional Options:
- With perforated cylinder
- Without perforated cylinder
PLV Type Control Valve Design
Body
The body is welded from plates, forgings, and pipes.
Piston
Main Seal
A polyurethane profile (90ShA) is secured to the piston with a stainless steel clamping ring. Additionally, there's a metal-to-metal seal between a stainless steel ring bolted to the body and the surface on the stainless steel piston.
Shafts
The shafts are rotatably mounted in the body via maintenance-free, self-lubricating bearings.
Outlet Section
Can be manufactured in 3 variants:
- A - straight outlet, without energy dissipation (cut-off edge)
- B - with perforated cylinder for energy dissipation (perforated cylinder)
- C - with a flow-directing cone (cone shape)
Actuator Types and Equipment for PLV Type Control Valves:
Actuator Types in Control Valves:
- Oil cylinder and counterweight
- Electric actuator with worm gear
- Manual actuator with worm gear
- Double-acting oil cylinder
The drive is transmitted to the piston via a crank mechanism.
Standard PLV Valve Equipment:
- Connection flanges with through-holes or threaded holes
- Legs
- Lifting lugs
- Vent and drain ports
- Limit switches for closed/open positions
- Visual position indicator
- Mechanical lock in the valve's closed position
Optional Control Valve Equipment:
- Additional connections
- Mechanical lock in the open position
- Additional electrical and hydraulic equipment, terminal box, hydraulic hoses
- Oil hydraulic control system
- Hydraulic power unit
- Electrical control panel
- 2-stage actuator with adjustable valve closing characteristic
Materials
Basic materials used in our products. Other materials may be used according to customer requirements and their suitable application.
| Element | Type | Material |
|---|---|---|
| Body | Plates | S355J2+N |
| Forgings | S355J2G3 | |
| Pipes | S355J2H | |
| Closing Element | Plates | 1.4301 |
| Shafts, pins | Rods | 1.4021 / 1.4313 / 1.4418 |
| Sealing Surfaces | Plates | 1.4301 |
| Flat bar | 1.4301 | |
| Soft Main Seals | Machined Gasket | Polyurethane |
| Metal Main Seals | Plates | 1.4301 |
| Forgings | 1.4006 / 1.4021 / 1.4057 / 1.4301 / 1.4313 | |
| Bolts, Nuts | Contact with Air | 8.8 / Galvanized Steel |
| A2-70 / A4-80 | ||
| Bearings | Maintenance-free, self-lubricating | - |
| Corrosion Protection | 2-Component Epoxy Paints | - |
Files
Brochures
Datasheets
See more of our products
Butterfly Valves
BLV and SPV ball valves
Slide Valves
Conical Control Valves
Needle Valves
Air Valves
OVD Type Flow Detector
Special Actuators for Valve Operation
Hydraulic and Electrical Valve Control Systems
Complete Valve Systems
