How do parallel slide gate valves work?
A parallel slide gate valve uses two parallel discs with a spring‑loaded or wedge mechanism. When closed, line pressure forces the discs against the seats to create a tight seal. This design reduces seat wear and maintains sealing efficiency even under high‑temperature and high‑pressure conditions.
Advantages of parallel slide gate valves...
• Low operating torque
• Tight shut‑off at high temperature
• Self‑compensating for wear
• Reduced seat damage compared to wedge gates
• Suitable for frequent operation
• Tight shut‑off at high temperature
• Self‑compensating for wear
• Reduced seat damage compared to wedge gates
• Suitable for frequent operation
Technical Parameters:
Pressure Ratings
PN16, PN25, PN40, PN63, PN100, CL150, CL300, CL600, CL900, CL1500, CL2500
Temperature Range
Typically –29 °C to +600 °C (material dependent)
Size Range
DN50–DN1200 (2″–48″)
Materials
Carbon steel, stainless steel, chrome‑moly alloys, Stellite‑faced trim
Industry Application:
Nuclear
Oil & Gas
Power
Media Type:
Water
Steam
Oil
