Ham-let 3201080 Inline Check Valve 1/2 in Mnpt Stainless

Product Description

The HAM-LET 3201080 is a 1/2 inch inline check valve designed to allow one-directional fluid or gas flow while preventing backflow in pressurized piping systems. The body and spring are constructed from 316 stainless steel, making it suitable for corrosive media and demanding process environments. It uses a Viton seal and has a crack pressure of 1.00 psi, meaning flow initiates at minimal differential pressure. Both end connections are MNPT, allowing threaded installation directly into standard pipe fittings. This valve is rated for 3,000 WOG (Water, Oil, Gas), making it appropriate for high-pressure service lines. Licensed plumbers, pipefitters, and industrial maintenance technicians are the typical installers.

This check valve is suited for residential, commercial, and light industrial applications where backflow prevention is required in 1/2 inch threaded piping systems. Common installation scenarios include compressed air lines, hydraulic circuits, chemical process lines, and gas distribution headers where system pressure and media compatibility demand stainless steel construction. The MNPT x MNPT configuration makes it straightforward to thread into existing iron pipe size (IPS) systems without additional adapters. The Viton seal provides compatibility with a broad range of fuels, oils, and chemical fluids.

Key Features

• 316 stainless steel body and spring for corrosion resistance in aggressive media
• Viton seal for broad chemical and fuel compatibility
• 1.00 psi crack pressure for low-resistance, prompt flow initiation
• 3,000 WOG pressure rating for high-pressure service
• MNPT x MNPT end connections for direct threaded installation
• Inline configuration for easy in-line pipe installation

Compatibility

This part is listed as a cross-reference to Swagelok part number SS-8C2-1. Designed as an OEM-style replacement or equivalent for 1/2 inch MNPT inline check valves in threaded stainless steel piping systems.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable plumbing and piping codes, including the IPC and ASME B31.3 where relevant. Depressurize and isolate the line completely before removing any existing valve or fitting. Apply appropriate thread sealant rated for the media being conveyed before threading the MNPT connections. Confirm flow direction arrow or inlet/outlet orientation before final installation to ensure proper check valve function.