Fire-Tested Valves | McMaster-Carr

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483 Products

About On/Off Valves

Miniature Threaded On/Off Valves for Chemicals

To withstand aggressive and corrosive solutions in miniature chemical-processing pipelines, these tiny valves have a chemical-resistant fluoroelastomer seal and a corrosion-resistant 303 stainless steel body.

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.

Ultra-Chemical-Resistant Threaded On/Off Valves

The most chemical-resistant threaded valves we offer, these have a PTFE seal and an alloy body that can withstand extremely aggressive and corrosive chemicals, such as methyl ethyl ketone and toluene.

Easy-to-Install Threaded
On/Off Valves for Chemicals

For fast installation and removal from pipelines, these valves have union fittings that disassemble into multiple pieces. All have a fluoroelastomer seal and a plastic body that can stand up to aggressive and corrosive solutions in chemical-processing applications.

Easy-Clean Threaded On/Off Valves for Chemicals

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.

Easy-to-Install Socket-Connect
On/Off Valves for Chemicals

Streamline your installation and removal process. These valves give you the leak-tight permanent connection of a socket connect with the ease of fittings that come apart.

On/Off Valves with Barbed Fittings for Chemicals

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.

On/Off Valves with Push-to-Connect
Fittings for Chemicals

Insert tubing into the fittings on these valves—no heat, solder, or flux required. To withstand aggressive and corrosive solutions, they have a chemical-resistant fluoroelastomer seal and a plastic body.

Flanged On/Off Valves for Chemicals

Bolt these valves to ANSI flanges—they meet ASME dimensional standards. They have a plastic body and a seal that withstand aggressive and corrosive solutions in chemical-processing applications.

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.

On/Off Valves for Fuel

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.

Compact Threaded On/Off Valves for Fuel

A low-profile handle allows these valves to fit in low-clearance pipelines for diesel fuel, fuel oil, and kerosene.

Easy-Maintenance Threaded On/Off Valves for Fuel

No need to completely remove these valves from your line for servicing. The bolted three-piece body comes apart, so you can easily access their internal components. Fire-tested to meet American Petroleum Institute (API) 607, these valves securely isolate diesel fuel, fuel oil, kerosene, and gasoline to prevent the spread of fire.

On/Off Valves with 37° Flared Tube Fittings for Fuel

These valves have 37° flared tube fittings that form a tight seal on metal tubing lines to transfer diesel fuel, fuel oil, and gasoline.

Flanged On/Off Valves for Fuel

Keep your worksite safe when working with diesel fuel, fuel oil, gasoline, and kerosene. Fire-tested to meet American Petroleum Institute (API) 607, 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.

Socket-Connect On/Off Valves for Fuel

Install these valves to start and stop the flow of diesel fuel, fuel oil, kerosene, and gasoline. Fire-tested to meet American Petroleum Institute (API) 607, these valves are designed to securely isolate fluid and prevent the spread of fire. Insert unthreaded pipe into the socket ends and weld to create a permanent, leak-tight connection.

Threaded On/Off Valves

Extended-Stem Threaded On/Off Valves

For installation through thick insulation, these valves have an extra-long stem.

Threaded On/Off Valves with Garden Hose Outlet

Turn the flow to any garden hose on and off. These valves have garden hose threads, which are a standard size, so they're universally compatible with all standard garden hoses.

Gradual On/Off Valves

Socket-Connect Gradual
On/Off Valves for Chemicals

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

Threaded Gradual On/Off Valves for Chemicals

For use with threaded pipe, these valves have NPT connections.

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

High-Flow Air-Driven On/Off Valves for Chemicals

Also known as actuated ball valves, these provide higher flow rates than other air-driven valves.

Severe-Duty Air-Driven On/Off Valves for Chemicals

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

Flanged Air-Driven On/Off Valves for Chemicals

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

Heavy-Use High-Flow Air-Driven On/Off Valves

Limit wear and damage in high-cycling applications—these valves have additional seals that prevent leakage to reduce maintenance time.

High-Flow Flanged Air-Driven On/Off Valves

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

Air-Driven On/Off Valves for Fuel

Use these valves to safely transfer fuel and oil.

Solenoid On/Off Valves for Chemicals

With a plastic body and a fluoroelastomer seal, these valves can stand up to aggressive and corrosive solutions in chemical-processing applications.

Solenoid On/Off Valves for Fuel Oil

Supply fuel oil to boilers, furnaces, and other equipment.

Flanged Motor-Driven On/Off Valves for Chemicals

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

Motor-Driven On/Off Valves for Chemicals

All valves have threaded NPT connections.

Motor-Driven On/Off Valves for Fuel

Use these valves to safely transfer fuel and oil.

Batch-Dispensing On/Off Valves

Accurately and consistently dispense a specific amount of liquid—these actuated valves have a screen and buttons for programming batch size and calibration.

About On/Off Valves

On/Off Valves for Chemicals

Miniature Threaded On/Off Valves for Chemicals

Threaded Isolation On/Off Valves for Chemicals

Ultra-Chemical-Resistant Threaded On/Off Valves

Easy-to-Install ThreadedOn/Off Valves for Chemicals

Easy-Clean Threaded On/Off Valves for Chemicals

Easy-to-Install Socket-ConnectOn/Off Valves for Chemicals

On/Off Valves with Barbed Fittings for Chemicals

On/Off Valves with Push-to-ConnectFittings for Chemicals

Flanged On/Off Valves for Chemicals

On/Off Valves with Yor-Lok Fittings for Chemicals

On/Off Valves for Fuel

Threaded On/Off Valves for Fuel

Compact Threaded On/Off Valves for Fuel

Easy-Maintenance Threaded On/Off Valves for Fuel

On/Off Valves with 37° Flared Tube Fittings for Fuel

Flanged On/Off Valves for Fuel

On/Off Valves with Yor-Lok Fittings for Fuel

Socket-Connect On/Off Valves for Fuel

Threaded On/Off Valves

Extended-Stem Threaded On/Off Valves

Threaded On/Off Valves with Garden Hose Outlet

Gradual On/Off Valves

Socket-Connect GradualOn/Off Valves for Chemicals

Threaded Gradual On/Off Valves for Chemicals

Vapor-Sealing Flanged Gradual On/Off Valves

Actuated On/Off Valves

High-Flow Air-Driven On/Off Valves for Chemicals

Severe-Duty Air-Driven On/Off Valves for Chemicals

Flanged Air-Driven On/Off Valves for Chemicals

Heavy-Use High-Flow Air-Driven On/Off Valves

High-Flow Flanged Air-Driven On/Off Valves

Air-Driven On/Off Valves for Fuel

Solenoid On/Off Valves for Chemicals

Solenoid On/Off Valves for Fuel Oil

Flanged Motor-Driven On/Off Valves for Chemicals

Motor-Driven On/Off Valves for Chemicals

Motor-Driven On/Off Valves for Fuel

Batch-Dispensing On/Off Valves

Easy-to-Install Threaded
On/Off Valves for Chemicals

Easy-to-Install Socket-Connect
On/Off Valves for Chemicals

On/Off Valves with Push-to-Connect
Fittings for Chemicals

Socket-Connect Gradual
On/Off Valves for Chemicals