Stockham Cast Iron Dual-Disc Wafer Check
Stockham Cast Iron Dual-Disc Wafer Check is offered in economical materials of construction and provides flow reversal protection for pumps and compressors.
Wafer-style dual-disc check valves are the valve of choice for low pressure loss applications.
Stockham's wafer check valve, made from corrosive resistant cast iron, provides positive shut off and minimizes water hammer sometimes associated with other check valve designs.
Available in Class 125 and 250 to 24".
Key Features & Benefits:
- Fully rated to ASME and MSS-SP Standards
- Full Pressure Class Offering: Class 125, Class 150, Class 250, and Class 300
- Complete size range availability from 2" through 24"
Wafer Check (Iron):
Exceptional backflow prevention in a smaller package
compared to traditional check valves.
- Dual-disc iron wafer check valves
- ASME Class 125
- Sizes: 2" to 36"
- Lightweight and spring-loaded for reliable performance
- Wafer-style body for installation between flanges
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Full Body Swing Check
Swing Check Valves are the most common type of check valves processing plants worldwide. This configuration provides predicatable closing times, minimal maintenance and are available in most all materials, all pressure classes and sizes up to 36".
Optional trim materials, as well as optional lever and weight accessories provide you with the best solution for your flow reversal protection requirements.
Bronze: Swing and Lift Check Valves with Bronze, Buna-N Viton® or PTFE disc.
Iron: Swing check valves with bronze or iron discs and flanged ends.
Key Features & Benefits:
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Stockham Bronze Check Valves: Pressure classes 125 through 300, with threaded and solder ends, as well as low lead options.
- Stockham Iron Body Valves:
- Fully rated to ASME and MSS-SP Standards
- Full Pressure Class Classes 125, 150, 250, and 300
- Complete size range availability from 2" - 24"
- Cast Carbon Steel swing check valves by Stockham prevent reversal of flow through pipe lines
- Disc Type: For class 600 valves, a ring joint bonnet gasket assures positive seal against leakage and accurate alignment of moving parts
- Welded-in Seat Ring: Seat ring is seal welded to eliminate leak path
- Internal Hung Design: Eliminates additional leak paths
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Cast Iron Steam Stop Check Valves
Stop Check valves are a combination of globe and non-return valves specially suited for the top of boilers.
Cast Iron and Cast Steel valves in bolted bonnet or pressure seal bonnet designs with sizes up to 24". These valves operate best when fully opened. Be sure to contact your represenative for assistance in sizing the valve to your unique flow conditions.
Key Features & Benefits:
- Fully rated to ASME and MSS-SP Standards
- Full Pressure Class Offering: Class 125, Class 150, Class 250, and Class 300
- Complete size range availability from 2" through 24"
Boiler Stop Checks:
Class 250 Iron Boiler Stop Check Valves
- Straight and Angle Pattern
- Sizes: 2½" to 10"
- Designed for steam applications that operate between 100psi and 250psi
- Acts as an automatic non-return valve in case of boiler failure
- Conforms to ANSI B16.34 standards
- Complies with the requirements of ASME Boiler and Pressure Vessel Code Section 1
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