Stainless Steel 1-Piece Poppet Check Valve, Adjustable Pressure, 1/4 in. FNPT, 3 to 50 psig (0.21 to 3.5 bar)
Part #: SS-4CPA4-3
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Specifications
Adjustable PressureControl back flow in general-service and high-purity applications with Swagelok check valves available in a range of adjustable and fixed cracking pressures. Log in or Register to view price ContactIf you have questions about this product, please contact your local authorized sales and service center. They can also tell you about supporting services to help you get the most out of your investment.
Safe Product Selection
The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user. Warning: Do not mix/interchange Swagelok products or components not governed by industrial design standards, including Swagelok tube fitting end connections, with those of other manufacturers. 
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The complete catalog contents must be reviewed to ensure that the system designer and user make a safe product selection. When selecting products, the total system design must be considered to ensure safe, trouble-free performance. Function, material compatibility, adequate ratings, proper installation, operation, and maintenance are the responsibilities of the system designer and user.
Warning: Do not mix/interchange Swagelok products or components not governed by industrial design standards, including Swagelok tube fitting end connections, with those of other manufacturers.
Stainless Steel 1-Piece Poppet Check Valve, Adjustable Pressure, 1/4 in. FNPT, 3 to 50 psig (0.21 to 3.5 bar)
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Catalogs
Adjustable Pressure
Control back flow in general-service and high-purity applications with Swagelok check valves available in a range of adjustable and fixed cracking pressures.
Features: Working pressures up to 6000 psig (413 bar); Adjustable and fixed cracking pressures Variety of end connections; 316 stainless steel and brass materials
Features: Step-by-step identification procedure for threads and end connections.
Loosen locking screw by turning counter clockwise; Slide hex wrench down into adjusting screw; Turn both screws clockwise to increase cracking pressure, counter-clockwise to decrease.
Procedure for installing Swagelok tube fittings in sizes over 1 inch or 25 mm.
This document specifies guidelines used by Swagelok® Company and its suppliers to ensure compliance with product cleanliness requirements as stated in ASTM G93 Level C. Application of the document is limited to wetted system components. This document must be used in conjunction with product catalogs, technical bulletins, and reports.
Swagelok® Specification SC-10 defines the cleaning, lubrication, assembly, and packaging requirements for standard Swagelok products and describes practices used to meet these requirements.
Valve sizing often is described by the nominal size of the end connections, but a more important measure is the flow that the valve can provide. And determining flow through a valve can be simple.
Specifications
SS-4CPA4-3 — Stainless Steel 1-Piece Poppet Check Valve, Adjustable Pressure, 1/4 in. FNPT, 3 to 50 psig (0.21 to 3.5 bar)
| Attribute | Value |
|---|---|
| Body Material | 316 Stainless Steel |
| Cleaning Process | Standard Cleaning and Packaging (SC-10) |
| Connection 1 Size | 1/4 in. |
| Connection 1 Type | Female NPT |
| Connection 2 Size | 1/4 in. |
| Connection 2 Type | Female NPT |
| Cracking Pressure | 3 to 50 psi (0.21 to 3.5 bar, 0.021 to 0.35 MPa) |
| CV Maximum | 0.35 |
| O-Ring Material | Fluorocarbon FKM |
| Room Temperature Pressure Rating | 3000 PSIG @ 100°F /206 BAR @ 37°C |
| Surface Finish | Standard |
| Testing | No Optional Testing |
| eClass (4.1) | 37010801 |
| eClass (5.1.4) | 27300400 |
| eClass (6.0) | 27300601 |
| eClass (6.1) | 27300601 |
| eClass (10.1) | 27300601 |
| UNSPSC (4.03) | 40141622 |
| UNSPSC (10.0) | 40141641 |
| UNSPSC (11.0501) | 40141641 |
| UNSPSC (13.0601) | 40141641 |
| UNSPSC (15.1) | 40141641 |
| UNSPSC (17.1001) | 40183101 |
Resources
Drawings
Two-dimensional renderings are available for this product. Download the CAD file.
Three-dimensional renderings are available for this product. Download the CAD file.
Sales drawings are available for this product. Download the files.
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Contact
If you have questions about this product, please contact your local authorized sales and service center. They can also tell you about supporting services to help you get the most out of your investment.