Sigma - Piston Intake Valve
For over 30 years All American Hose has been providing quality water delivery hardware and accessories to the fire fighting industry. This experience keeps our products at the forefront of technological development and our Sigma Piston Intake Valve is the newest product to benefit from this experience. Redesigned from the bottom up through the use of Pro/ENGINEER 3-D CAD product design software and along with a computational fluid dynamics analysis the design has been optimized to be the most efficient in the industry. Improvements to the piston shape (and material), an anti-cavitation flow vane, and an increase in waterway area, have combined to decrease friction loss while increasing the flow capacity of the valve. Combine these improvements with a high strength cast aluminum, hardcoat anodized valve body and you have an Intake Valve that will last for years and years. This valve will flow more and last longer than any other design of its type.
Features
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Cavernous Waterway with Cast-in Flow Vane Reduces Cavitation and Keeps Friction Loss to 3 psi at 2000 gpm
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Thermoplastic Polyester Resin Piston Body Eliminates Seizing Due to Hard Water Deposits
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Sacrificial Zinc Anode Protects Body from Galvanic Corrosion
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Grease Fitting on Handwheel/Spindle Keeps Piston Lubricated and the Spindle Free From Hard Water Deposits
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Valve Extends only 11-½ from End of Intake
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Easy-to-Access Air Bleeder Valve Quickly Bleeds Air from Supply Hose
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Easily Positioned Adjustable Relief Valve Directs Overflow Water in One of Four Directions
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Meets NFPA Slow-Close Requirements
Physical Exterior:
Hardcoat Anodized and Powder Coated
Interior:
Hardcoat Anodized and Powder Coated
Piston:
Thermoplastic Polyester Resin
Spindle:
Corrosion Resistant Stainless Steel
Weight:
31 lbs.
Inlet (Hose Side) Connections:
4, 5 or 6 Storz or Female Swivel
Outlet (Truck Side) Connections:
4, 4-½, 5, or 6 Female Swivel
Flow/Pressure/Friction Loss
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Maximum Working Pressure: 280 psi
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Burst Pressure: 720 psi Maximum
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Flow: 2000 GPM
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Friction Loss: 3 psi 2000 GPM
Pressure Relief Valve Specification
Type: Double Spring, Cartridge Type, Adjustable from 50 to 200 psi. Factory set at 150 psi.
NH = National Hose Thread
Other Threads Available
Call 866-568-2200 for more details
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