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# Check\-All Valve Manufacturing Company inline spring check valve: Manufacturer of spring check valves

> Spring loaded Check Valve \| Manufacturing Company\. Also known as silent check valve, vacuum breaker and low\-pressure relief valve

## Pages
- [Spring Check Valve \| Manufacturing Company \| Check\-All Valve](https://www.checkall.com/)
- [Blog](https://www.checkall.com/blog/)
- [Sign up](https://www.checkall.com/sign-up-2/)
- [Library View or Download](https://www.checkall.com/library-view/)
- [Butt Weld Valve Style B8](https://www.checkall.com/3d-downloads/butt-weld-valve-style-b8/)

## Products
- [Sanitary Insert Check Valve Style \- TC](https://www.checkall.com/product/sanitary-insert-check-valve-style-tc/): Valve shown in ferrules\.Ferrules and clamp not included\.
\<ul\>
 	\<li\>\<a href="https://www\.checkall\.com/PDFfiles/pressure\_equipment\_directive\_compliance\.pdf" target="\_blank" rel="noopener noreferrer"\>PED 2014/68/EU COMPLIANT\</a\>\</li\>
 	\<li\>\<i class="fa fa\-file\-pdf\-o" aria\-hidden="true"\>\</i\> \<a href="https://www\.checkall\.com/PDFfiles/TC\.pdf" target="\_blank" rel="noopener noreferrer"\>Catalog Cutsheet\</a\>\</li\>
 	\<li\>\<i class="fa fa\-file\-pdf\-o" aria\-hidden="true"\>\</i\> \<a href="https://www\.checkall\.com/PDFfiles/application\_guidelines\.pdf" target="\_blank" rel="noopener noreferrer"\>Application Guidelines\</a\>\</li\>
 	\<li\>\<i class="fa fa\-file\-pdf\-o" aria\-hidden="true"\>\</i\> \<a href="https://www\.checkall\.com/PDFfiles/installation\_guidelines\.pdf" target="\_blank" rel="noopener noreferrer"\>Installation Guidelines\</a\>\</li\>
 	\<li\>\<a href="https://www\.checkall\.com/register/"\>View \<strong class="w3\-text\-red"\>3D\</strong\> drawing\</a\>\</li\>
 	\<li\>\<a href="https://www\.checkall\.com/cb\-tc\-request\-a\-quote\-form/"\>Request a quote\</a\>\</li\>
\</ul\>
- [Sanitary Cartridge Check Valve Style \- SC](https://www.checkall.com/product/sanitary-check-valve-style-sc/): \<ul\>
 	\<li\>\<a href="https://www\.checkall\.com/PDFfiles/pressure\_equipment\_directive\_compliance\.pdf" target="\_blank" rel="noopener noreferrer"\>PED 2014/68/EU COMPLIANT\</a\>\</li\>
 	\<li\>\<i class="fa fa\-file\-pdf\-o" aria\-hidden="true"\>\</i\> \<a href="https://www\.checkall\.com/PDFfiles/SC\.pdf" target="\_blank" rel="noopener noreferrer"\>Catalog Cutsheet\</a\>\</li\>
 	\<li\>\<i class="fa fa\-file\-pdf\-o" aria\-hidden="true"\>\</i\> \<a href="https://www\.checkall\.com/PDFfiles/application\_guidelines\.pdf" target="\_blank" rel="noopener noreferrer"\>Application Guidelines\</a\>\</li\>
 	\<li\>\<i class="fa fa\-file\-pdf\-o" aria\-hidden="true"\>\</i\> \<a href="https://www\.checkall\.com/PDFfiles/installation\_guidelines\.pdf" target="\_blank" rel="noopener noreferrer"\>Installation Guidelines\</a\>\</li\>
 	\<li\>\<a href="https://www\.checkall\.com/PDFfiles/form\_157\.pdf" target="\_blank" rel="noopener noreferrer"\>Additional Installation Guidelines\</a\>\</li\>
 	\<li\>\<a href="https://www\.checkall\.com/register/"\>View \<strong class="w3\-text\-red"\>3D\</strong\> drawing\</a\>\</li\>
 	\<li\>\<a href="https://www\.checkall\.com/sc\-request\-a\-quote\-form/"\>Request a quote\</a\>\</li\>
\</ul\>
- [Sanitary Cartridge Series \(SC\)](https://www.checkall.com/product/sc-series/): \<ul\>
 	\<li\>316/316L stainless steel check valve that seals on the ID of sanitary ferrules and requires zero take out in the line\</li\>
 	\<li\>\<a href="https://www\.checkall\.com/PDFfiles/SC\.pdf" target="\_blank" rel="noopener"\>Product details\</a\> \(New window will open\)\.\</li\>
 	\<li\>\.125 PSI springs are not recommended for installations with flow vertical down\.\</li\>
 	\<li\>"Metal\-to\-Metal" seats are not resilient\.  See \<a href="https://www\.checkall\.com/staging/wp\-content/uploads/2021/05/Catalog\-55\-1\.pdf" target="\_blank" rel="noopener"\>allowable leakage\</a\> \(New window will open\)\.\</li\>
 	\<li\>For "Metal\-to\-Metal", outer o\-rings will be FDA EPDM\.\</li\>
 	\<li\>Listed below are the most common selections\.  \<a href="mailto:sales@checkall\.com?subject=Additional options for SC series \&body=Enter question here"\>Please contact the factory for additional options\.\</a\>\</li\>
\</ul\>
- [3S Series Sanitary Insert Check Valve](https://www.checkall.com/product/3-a-sanitary-check-valve-style-3s/): \<h3 style="text\-align: left;" align="center"\>\</h3\>
\<ul\>
 	\<li\>\<a href="https://www\.checkall\.com/PDFfiles/pressure\_equipment\_directive\_compliance\.pdf" target="\_blank" rel="noopener noreferrer"\>PED 2014/68/EU COMPLIANT\</a\>\</li\>
 	\<li\>\<i class="fa fa\-file\-pdf\-o"\>\</i\> \<a href="https://www\.checkall\.com/PDFfiles/3S\.pdf" target="\_blank" rel="noopener noreferrer"\>Catalog Cutsheet\</a\>\</li\>
 	\<li\>\<i class="fa fa\-file\-pdf\-o"\>\</i\> \<a href="https://www\.checkall\.com/PDFfiles/application\_guidelines\.pdf" target="\_blank" rel="noopener noreferrer"\>Application Guidelines\</a\>\</li\>
 	\<li\>\<a href="http://www\.checkall\.com/PDFfiles/3S\_Series\_Installation\.pdf"\>3S Series Installation Guide\</a\>\</li\>
 	\<li\>\<a href="https://www\.checkall\.com/register/"\>View \<strong class="w3\-text\-red"\>3D\</strong\> drawing\</a\>\</li\>
 	\<li\>\<a href="https://www\.checkall\.com/s3\-request\-a\-quote\-form/"\>Request a quote\</a\>\</li\>
\</ul\>
\<img class="aligncenter wp\-image\-29276" src="https://www\.checkall\.com/wp\-content/uploads/2025/02/3ALogo\.png" alt="" width="222" height="287" /\>
- [Tubing Flared Series \(TF\)](https://www.checkall.com/product/tf-series/): \<ul\>
 	\<li\>A three\-piece tubing check valve with 37\-degree flared tube ends that confirm to SAE J514 and ISO 8434\-2 offering maximum flow with minimal pressure drop\.\</li\>
 	\<li\>\<a href="https://www\.checkall\.com/PDFfiles/TF\.pdf" target="\_blank" rel="noopener"\>Product details\</a\> \(New window will open\)\.\</li\>
 	\<li\>\.125 PSI springs are not recommended for installations with flow vertical down\.\</li\>
 	\<li\>Seat materials other than "metal\-to\-metal" have a maximum pressure rating of 1500 PSI\. "Metal\-to\-Metal" and PTFE seats are not resilient\.  See \<a href="https://www\.checkall\.com/staging/wp\-content/uploads/2021/05/Catalog\-55\-1\.pdf" target="\_blank" rel="noopener"\>allowable leakage\</a\> \(New window will open\)\.\</li\>
 	\<li\>Fitting o\-rings are the same as the seat for standard seat materials\. For "Metal\-to\-Metal" seated valves, end fittings o\-rings are Buna\-N for brass and carbon steel valves and Viton for stainless steel valves\. For "KZ" and "AS" seated valves, end fitting o\-rings are PTFE\.\</li\>
 	\<li\>Listed below are the most common selections\. \<a href="mailto:sales@checkall\.com?subject=Additional options for TF series \&body=Enter question here"\> Please contact the factory for additional options\.\</a\>\</li\>
\</ul\>

## Categories
- [Valves](https://www.checkall.com/category/valves/)
- [Careers](https://www.checkall.com/category/careers/)

## Product categories
- [Build Part Number and Price](https://www.checkall.com/product-category/configuration/)
- [Check Valves: Full\-Service Valve Series](https://www.checkall.com/product-category/silent-check-valve-catalog/)
- [Threaded Connection](https://www.checkall.com/product-category/threaded-connection-check-valves/)
- [Unique](https://www.checkall.com/product-category/unique/)
- [Flange Connection](https://www.checkall.com/product-category/flange-connection-check-valves/)