PISTON & BALL CHECK VALVES

Piston & Ball Check Valves are a type of non-return valves that allow fluid to flow in one direction while preventing reverse flow. These valves are often used in high-pressure applications where reliable sealing and durability are critical. Their design includes a piston or ball that moves freely within its space, reacting to the pressure of the fluid. When the fluid flows in the correct direction, it pushes the piston or ball to open the valve, allowing the fluid to pass. When there is backflow, the piston or ball is pushed into the seat, sealing the valve and preventing reverse flow. Piston & Ball Check Valves are an excellent choice where flow reliability and backflow prevention are critical.

SUITABLE APPLICATIONS

• HVAC systems • Fire Protection systems
• Oil & Gas industry • Water and Wastewater treatment
• Pumping systems • Power Generation
• Shipbuilding industry • Marine industry
• Fuel systems • Hydraulic systems
• Food & Beverage industry

UNIQUE FEATURES

• Prevention of backflow • Simple design
• Cost-effectiveness • Versatility
• Efficient flow control • Short face to face dimensions

The standard in

Non-standard
Valves

Technical Specifications

Size inch (DN)
1/2" (15) - 14” (350)
ANSI class (lbs)
150 - 4500
API rating (psi)
3000 - 15000
DIN rating (PN)
10 - 400
ISO 10423 (API 6A)
Russian GOST
ISO 14313 (API 6D)
PED
ASME B16.34
DIN
EN 13709
NORSOK
ISO 15761 (BS1868/BS5352)
Manufacturer standard
Pressure
Vacuum to 765 bar(g)
Temperature
-196°C to +850°C
Piston type
Bolted cover
Pressure seal cover
Welded cover
Loose plug type disc, spring or pressure loaded
Loose ball type disc, spring or pressure loaded
Integral
Renewable, Metal to Metal
Soft
Ball type
Flat type
Plug type
Solid type
Stelliting
Kolsterising®
ISO 5208
ISO 14313 (API 6D)
API 598
EN 122 Part 1/2
ISO 10423 (API 6A)
Flanged (FF / RF / RTJ)
Butt Weld
Socket Weld
Threaded (Male / Female)
Hubbed or Mechanical Ends
SAE Flanged
Compact Flanged
Clients’ specifications