ASME B16.34 On-Off Valves

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110 Products

About On/Off Valves

Flanged On/Off Valves

Bolt these valves to ANSI flanges. They’re for use with water, oil, air, inert gas, and steam.

Compact Flanged On/Off Valves

Also known as wafer ball valves, these combine the slim body of a butterfly valve with the high flow rates of a flanged ball valve. Bolt these valves to ANSI flanges—they meet ASME standards for dimensions, material, and pressure-temperature rating. Use with water, oil, air, steam and inert gas such as helium.

Threaded Isolation On/Off Valves for Chemicals

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.

On/Off Valves with Yor-Lok Fittings for Chemicals

For extra gripping power and a strong seal, the Yor-Lok fittings on these valves have two sleeves that bite into tubing as you tighten the nut. All are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings. These valves have a PTFE seal and a corrosion-resistant Monel ball and body that can stand up to aggressive and corrosive chemicals such as acetone.

Threaded On/Off Valves for Fuel

Protect personnel and equipment in the presence of diesel fuel, fuel oil, gasoline, and kerosene. Fire-tested to meet American Petroleum Institute (API) 607, Edition 4, these valves are designed to securely isolate fluid and prevent the spread of fire.

On/Off Valves with Yor-Lok Fittings for Fuel

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. They are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings. Use with diesel fuel, fuel oil, gasoline, and kerosene.

Threaded Gradual On/Off Valves for Boiler Blow-Off

Prevent boiler scale deposits and sediment buildup with these valves designed to meet ASME standards for boiler drainage applications.

Flanged Gradual On/Off Valves

Vapor-Sealing Flanged Gradual On/Off Valves

Control the flow of steam, hazardous gases, and other vapors without risking leaks. These valves have an accordion-like bellows around the stem that expands as they open and contracts as they close, forming an airtight seal.

Actuated On/Off Valves

Severe-Duty Air-Driven On/Off Valves

Also known as diaphragm valves, these have a diaphragm that can handle dirty liquid, slurries, and abrasive media without damage.

High-Flow Flanged Air-Driven On/Off Valves

Their ball-valve design allows these valves to handle three times the flow of butterfly valves.

Flanged Air-Driven On/Off Valves for Chemicals

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

High-Flow Flanged Motor-Driven On/Off Valves

Their ball valve design allows these valves to handle three times the flow of butterfly valves.

Flanged Motor-Driven On/Off Valves for Chemicals

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