Design Considerations
The 427 Series Check incorporates a plastic poppet that seals on a quad ring.
Gray PVC with 1 psi stainless spring is the standard configuration.
Nylon, PVDF (Kynar®) and Glass Filled Polypropylene are available for chemical resistance applications.
MakroBlend is an NSF Standard 51 Approved Material.
Specifications
Material | Gray PVC (Standard), White PVC; Black Polypropylene, White Polypropylene; Black Nylon, White Nylon; MakroBlend Black PVDF (Kynar®) |
End Options | 1/8"Barb, 3/16"Barb, 1/4"Barb, 5/16"Barb, 3/8"Barb 1/8"Male NPT, 1/4"Male NPT 1/8"Female NPT, 1/4"Female NPT 1/4"Push-to-Connect, 5/16"Push-to-Connect, 3/8"Push-to-Connect 1/8"JACO, 1/4"JACO 3/8"BIB |
Seal Option | Buna-N, Ethylene Propylene, Fluoroelastomer (Viton®) |
Spring Option: Cracking Pressure and Material | 302 Stainless: 1/3 PSI, 1 PSI (Standard), 1.5 PSI, 3 PSI, 5 PSI, 7 PSI, 10 PSI, 12 PSI or No Spring, Hastelloy Spring:1/3 PSI, 1 PSI, 3 PSI, 5 PSI, 12 PSI |
Maximum Operating Pressure | 125 PSI |
Maximum Operating Temperature | 140 °F |
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