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(973) 838-6500
Call us Today
(973) 838-6500
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1/8” - 3/4” NPT
Vacuum - 800 Psig
Description
A compact, inline, direct acting poppet check valve suitable for pressure and vacuum applications. Bubble tight sealing is achieved by a line of contact between a precision machined seat and a standard elastomer O-ring with minimum differential pressure, regardless of mounting attitude. Floating poppet and fluted retainer design provides laminar flow. Metal to metal positive stop ensures long service life.
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Technical Data
Materials of Constructions
| Component | Valve Body Material | |
| Brass | Stainless Steel1 | |
| Body, Poppet | Brass, ASTM B16 | 316 SS, ASTM A479 |
| Spring Retainer | Brass, ASTM B162 | 316 SS, ASTM A479 |
| Spring | 302 SS, ASTM A313 | |
| O-Ring3 | Buna-N | Viton™ |
| Retaining Ring | Zinc Plated Carbon Steel | Stainless Steel |
| 1 Stainless Steel available in 1/8”, 1/4”, 3/8” & 1/2” Male x Male only | ||
| 2 1/8” & 1/4” Brass valves have 316SS retainer | ||
| 3 Lubricated with Krytox™ | ||
Dimensionsional Data
| Pipe Size (NPT) | Port Configuration | A (inches) | Hex | Orifice (inches) | Cv | Flow at Max Psid1 (SCFM) | |
| Inlet | Outlet | ||||||
| 1/8" | Male | Male | 1.312 | 1/2" | 0.140 | 0.4 | 7.2 |
| Female | Female | 1.687 | |||||
| Female | Male | 1.437 | |||||
| 1/4" | Male | Male | 1.592 | 5/8" | 0.193 | 0.8 | 14.3 |
| Female | Female | 1.937 | 3/4" | ||||
| Female | Male | 1.500 | |||||
| 3/8" | Male | Male | 1.610 | 3/4" | 0.270 | 1.2 | 21.5 |
| 1/2" | Male | Male | 2.140 | 7/8" | 0.327 | 2.0 | 35.5 |
| 3/4" | Male | Male | 2.160 | 1-1/8" | 0.467 | 5.0 | 90.0 |
| 1 Maximum allowable pressure drop 15 Psid. | |||||||
| Flow tested in accordance with ISA S75.02 with air. Restrictions in the inlet or outlet piping may reduce flow. | |||||||
Ordering Information
PROPER COMPONENT SELECTION - When specifying a component, the total system design must be considered to ensure safe and trouble-free performance. Intended component function, materials compatibility, pressure ratings, installation, environment and maintenance are the responsibility of the system designer.
