# GPP High Pressure

> Leading manufacturer of ultra\-high pressure components 20K–100K PSI\. Shop valves, tubing \& fittings online today\.

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## Pages
- [Home Page](https://gpphighpressure.com/)
- [Patents](https://gpphighpressure.com/patents/)
- [Shipping \& Receiving Supervisor](https://gpphighpressure.com/shipping-receiving-supervisor/)
- [Overhaul Kit for SG Swivels SG\-CCN\-P12K AND SG\-CCN\-MP12K](https://gpphighpressure.com/overhaul-kit-for-sg-swivels-sg-ccn-p12k-and-sg-ccn-mp12k/)
- [Service Kit for SG Swivels SG\-CCN\-P12K AND SG\-CCN\-MP12K](https://gpphighpressure.com/service-kit-for-sg-swivels-sg-ccn-p12k-and-sg-ccn-mp12k/)

## Posts
- [The Ultimate Guide to 100K PSI High\-Pressure Fittings and Tubing: Applications, Benefits, and Why GPP Delivers Reliability at Extreme Pressure](https://gpphighpressure.com/100k-psi-high-pressure-fittings-tubing-guide/): Explore how 100K PSI high\-pressure fittings and tubing ensure safety, durability, and leak\-free performance in demanding industrial applications like waterjet cutting and aerospace systems\.

## Products
- [High Pressure NPT Adapter Couplings 10000–15000 PSI](https://gpphighpressure.com/product/high-pressure-npt-adapter-couplings-10000-15000-psi/): • Available in sizes ¼", 3/8", 9/16" ¾" and 1"\.
• 300 Series Stainless Steel\.
• Operating temperatures ranging from \-400° F to 400° F\.
• All items can be manufactured from special materials upon customer request\.
- [Medium Pressure NPT Adapter Couplings 10,000 \- 15,000 PSI](https://gpphighpressure.com/product/medium-pressure-npt-adapter-couplings-10000-15000-psi/): • Available in sizes ¼", 3/8", 9/16" ¾" and 1"\.
• 300 Series Stainless Steel\.
• Operating temperatures ranging from \-400° F to 400° F\.
• All items can be manufactured from special materials upon customer request\.
- [Medium Pressure Valves 3\-way/1 On Pressure 3\-way/2 On Pressure\-2](https://gpphighpressure.com/product/medium-pressure-valves-3-way-1-on-pressure-3-way-2-on-pressure-2/): • Standard St\. Steel handle provides superior corrosion resistance
• Inset Steel mounting screws to prevent loss or misplacement
• Unnecessary material removed results in lighter valve
• Handle locked onto 4\-sided tapered stem prevents slippage
• New packing gland design reduces operating torque
• Non\-rotating, 2\-piece stem provides a fixed backlash \& improves packing life \& reliability
• Bi\-directional low design increases installation options
- [MEDIUM PRESSURE VALVES 3\-WAY/1 on Pressure 3\-WAY/2 on Pressure](https://gpphighpressure.com/product/medium-pressure-valves-3-way-1-on-pressure-3-way-2-on-pressure/)
- [100K Psi Tubing](https://gpphighpressure.com/product/100k-psi-tubing/): GPP offers Austentic, cold\-drawn, 316, stainless steel tubing in a variety of sizes\. Available in 20 foot lengths, our tubing is designed to provide the same performance standards as our valves and fittings\. GPP’s tubing is manufactured for applications requiring both strength and corrosion resistance\.

\<strong\>Inspection and Testing\</strong\>
GGP offers Sandvick HP160 specialty tubing in a variety of sizes\. Available in 20n foot random lengths, our tubing is designed to provide superior performance in this extreme service\. GPP’s tubing is manufactured for applications requiring both strength and corrosion resistance\.

\<strong\>Autofrettage for Extended Life\</strong\>
Pressure\-cycle service life of tubing can be significantly extended by a one\-time factory process known as “\<a href="https://gpphighpressure\.com/pressure\-autofrettage\-for\-service\-life\-extension/"\>autofrettage\</a\>,” which involves a single over\-pressurization to introduce favorable residual stresses into the tubing wall\. Autofrettage is generally required to achieve adequate pressure\-cycle service life for most 100,000psi tubing applications, and is available at GPP as a factory option\.

## Optional
- [Sitemap index](https://gpphighpressure.com/sitemap_index.xml)