Reduce contaminants in gases used in research sample systems, emission monitoring systems, chromatography, and other high-purity applications. These valves have a 316 stainless steel and brass body with a smooth finish to reduce dust collection and internal components designed to protect the seal and diaphragm from contamination.

Commonly used in TIG welding where gas flow/coverage is a concern.

Choose from valves for liquid argon, liquid nitrogen, liquid carbon dioxide, or liquid oxygen tanks.

Designed for oxygen service and other high-purity applications, these valves can withstand the extreme cold of liquid argon, liquid carbon dioxide, liquid nitrogen, and liquid oxygen.

Cleaned and bagged for oxygen service and other high-purity applications, these valves are built to withstand the extreme cold of liquid carbon dioxide, liquid nitrogen, and liquid oxygen.

Attach gauges or sensors to these valves so you can remove them for maintenance and calibration without depressurizing your line. They are also known as block and bleed valves.

For chemical-processing applications in confined areas, these valves have an EPDM seal and a PVC or CPVC body to withstand aggressive and corrosive solutions and a low-profile handle to fit in tight spots.

There’s no need to unbolt these valves for cleaning—remove the valve handle and slide the valve apart for inline access to internal components. Also known as elliptical valves, they have a fluoroelastomer seal and a polypropylene body to withstand aggressive and corrosive solutions in chemical-processing applications.

Union fittings on both ends of these valves disassemble for fast installation and removal from your pipeline. Insert unthreaded pipe into the socket ends and bond with primer and cement to create a permanent, leak-tight connection. These valves have a fluoroelastomer seal and a plastic body that can withstand aggressive and corrosive solutions in chemical-processing applications.

Barbs grip onto tubing, providing a secure hold. To withstand aggressive and corrosive solutions in chemical-processing applications, these valves have a plastic body and a chemical-resistant seal.

These valves have socket-weld connections for bonding to unthreaded male plastic pipe.

With a ball-valve design, these valves can handle three times the flow of butterfly valves.

For three times the flow of butterfly valves, these have a ball valve design.

For extra gripping power and a strong seal, these valves have Yor-Lok fittings with two sleeves that bite into tubing as you tighten the nut. All are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings. The 316 stainless steel body and seal, the PTFE seat and packing, and the Monel needle can withstand aggressive and corrosive solutions in chemical-processing applications. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control.

Often used in sterilization applications with clean steam, these valves are electropolished to a 16 Ra finish for smooth internal surfaces that prevent product buildup and inhibit bacteria growth.

Often used with portable cryogenic cylinders, these valves are a third of the height of other valves for cryogenic liquid. They are designed to withstand the extreme cold of liquid argon, liquid carbon dioxide, and liquid nitrogen. All are cleaned and bagged to meet CGA G-4.1 standards for oxygen service. These valves gradually open and close to adjust and regulate flow.

Metal provides more durability than plastic. With seats that can stand up to aggressive and corrosive solutions, these valves are often used in chemical-processing applications. They bolt to flanges to adjust and regulate flow in flanged pipelines.

The most chemical-resistant check valves in our offering, these have a PFA body to withstand methyl ethyl ketone, sodium hypochlorite, and other extremely harsh chemicals.

Insert tubing into the fittings—no heat, solder, or flux required.

A plastic body withstands pH neutralizing, cleaning, and plating solutions containing sodium hydroxide, methyl ethyl ketone, and other harsh chemicals.

For easy installation and removal from pipelines, all ends on these valves have union fittings that disassemble into multiple pieces. Their fluoroelastomer seal and plastic body can withstand aggressive and corrosive solutions for diverting flow between ports in chemical-processing applications.

Perform valve maintenance without unthreading pipe connections. These valves have a three-piece bolted body that comes apart for inline access to internal components. The fluoroelastomer seal and glass-filled polypropylene body can withstand aggressive and corrosive solutions for diverting flow in chemical-processing applications.

Barbed fittings on these valves grip onto tubing, providing a secure hold. To divert flow between ports in chemical-processing applications, they have a chemical-resistant seal and a PVDF body to withstand aggressive and corrosive solutions.

Compression fittings bite down on the outside of hard metal tubing for a secure connection.

Also known as orifice plates, these mount between orifice flange unions.

Commonly used in high-pressure welding applications, these nipples connect your tank to the inlet of a pressure regulator. One side has a threaded pipe end and the other side has a rounded end that sits inside a threaded nut to make a threaded connection.