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Hydrocomponents & Technologies Inc.

4021 300 PSI 316 SS, Robust End Caps PVC NSF, U-Pin Quick Release Leak & Corrosion Resistant, Pressure Vessel Membrane Housings PV-4021.1S

4021 300 PSI 316 SS, Robust End Caps PVC NSF, U-Pin Quick Release Leak & Corrosion Resistant, Pressure Vessel Membrane Housings PV-4021.1S

Regular price $244.48 USD
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4021 300 PSI 316 Stainless Steel, Robust NSF PVC End Caps, Leak & Corrosion Resistant Stainless Steel Quick Release U-Pins, Pressure Vessel Membrane Housings PV-4021.1S

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Hydrocomponents & Technologies Inc. Pressure Vessel Membrane Housings are Equivalent to All Major U.S. Brands!

 

PLEASE REFERENCE TABLE BELOW

 

PV-4021.1S 4" x 21" 300 PSI Stainless Steel Membrane Housing

 

The PV-4021.1S is an industrial-grade pressure vessel engineered for high-performance reverse osmosis (RO) and filtration systems in demanding environments. Constructed from premium 316-grade stainless steel with a standard satin finish, this housing offers superior corrosion resistance compared to lower-grade alloys, making it an ideal choice for marine, high-salinity, and moisture-rich industrial applications. The vessel features a robust design that prevents surface degradation, ensuring structural longevity even when exposed to harsh chemicals or extreme environmental conditions.

The assembly utilizes a precision-engineered stainless steel (SS) U-Pin retaining system. Unlike traditional plastic clips or clamp systems, the SS U-Pin mechanism provides a secure, high-integrity seal that is not prone to the brittleness, leaks, or corrosion often associated with metallic fasteners or lower-grade hardware. Complementing the vessel’s durability, the end caps are manufactured from NSF-certified high-impact PVC. These end caps are specifically designed to resist stress-cracking and breaking under pressure, ensuring a stable, leak-proof seal that maintains system uptime and reduces maintenance cycles.

 

Specification Details Notes
Model Number PV-4021.1S 4" x 21" Configuration
Material 316 Stainless Steel High Corrosion Resistance
Retaining System Stainless Steel U-Pin Leak & Corrosion Resistant
End Cap Material NSF-Certified PVC Impact & Crack Resistant
Max Pressure 300 PSI Industrial Operating Limit
Connections 1/2" NPT Feed/Brine/Permeate Ports

 

  • Durable corrosion resistant Stainless Steel housing with standard satin finish.
  • Self-locking stainless steel U-Pin retaining devices for easy installation.
  • Ethylene propylene FDA approved "O" rings.
  • Flush mount easy aligning PVC end plugs make fitting installation effortless.
  • Optional Acetal Co-polymer or 316 SS end cap materials are also available.
  • Universal style models also manufactured to fit membrane of your choice.
  • Separation between permeate port and feed/concentrate port allow the use of large fittings.
  • Other lengths available upon request.

 

Model # Membrane size # of membranes OAL (in) Feed Brine Permeate
4021.1S 4 x 21 inch 1 25   1/2   1/2   1/2

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