426 SERIES FOOT VALVE
Maximum Operating Pressure — 125 psi
Maximum Operating Temperature — 140°F
Seat Area Open Diameter — .250
Design Considerations
The 426 Series Foot Valve design promotes multiple outlet end configurations to fit the exact end use application. The inlet end is a 3/8" Hose Barb with a 40 Mesh Stainless Suction Strainer screen installed. Gray PVC with 1 psi stainless spring and ball is the standard configuration. Nylon, PVDF (KynarŽ) and Glass Filled Polypropylene are available for chemical resistance applications. MakroBlend is an NSF Standard 51 Certified Material. Hastelloy is a superior chemically resistant spring material. TeflonŽ balls are standard with Hastelloy springs for chemical resistant applications.
Options
| Material Options | Gray PVC (Standard), White PVC, White Polypropylene, Black Nylon, White Nylon, MakroBlend, Black PVDF (Kynar®) |
| Seal Options | Buna-N, Ethylene Propylene, Fluoroelastomer (Viton®) |
| End Options | 1/8, 1/4 Male and Female NPT 1/8, 1/4, 5/16, 3/8, 1/2 Hose Barb 1/8, 1/4 JACO (Not NSF 42 Certified) 1/4, 3/8 SMC Push-To-Connect 3/8 BIB (Smooth Barb) |
| Cracking Pressure | 302 Stainless Spring - 1/3 psi, 1 psi (Standard), 1.5, 3, 5, 7, 10, 12 psi or No Spring, Hastelloy Spring - 1/3, 1, 3, 5, 12 psi |
| Ball Material | 316 Stainless - Standard With Stainless Spring Teflon® - Standard With Hastelloy Spring |
Example of how to order
| Body Material PVC |
Inlet End 3/8 Barb |
Outlet End 1/4 FNPT |
Seal Buna-N |
Spring 3 psi |
Ball Material Stainless |
SMC Part Number: PVC FOOT 426-6B4F-B,3#
The flow arrow on the body will point from Inlet to Outlet. SMC Part Numbers are a description of the valve as read left to right, Inlet to Outlet.
Example: PVC FOOT 426-6B4F-B,3# - 3/8 Barb with screen Inlet x 1/4 FNPT Outlet