Throttle Valves | McMaster-Carr

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1,206 Products

Flow-Adjustment Valves

Threaded Flow-Adjustment Valves

Gradually open and close to control the flow of air and liquids through a line

81 products

High-Pressure Threaded Flow-Adjustment Valves

Rated for twice the pressure of other valves for refineries and other demanding environments

8 products

Easy-Install Plastic Threaded Flow-Adjustment Valves

Turn the union fitting to install or remove without disrupting your line

1 product

Low-Pressure Threaded Flow-Adjustment Valves

Use for boiler maintenance and other low-pressure plumbing applications

11 products

Plastic Socket-Connect Flow-Adjustment Valves

Bond to unthreaded pipe with PVC primer and cement for a corrosion-resistant connection

4 products

Threaded Flow-Adjustment Valves for Cryogenic Liquid

Withstand the extreme cold of liquid argon, nitrogen, and carbon dioxide

9 products

Plastic Threaded Flow-Adjustment Valves

The plastic body is a lightweight, corrosion-resistant alternative to metal

4 products

Threaded Flow-Adjustment Valves for Fuel

Automatically close to shut off flow when temperatures reach 165° F, such as in a fire

6 products

Flow-Adjustment Valves for Dry Material

Control the flow of powders and other dry material through bins and hoppers

4 products

Flow-Adjustment Valves with Sanitary Quick-Clamp Fittings for Food and Beverage

Smooth internal surfaces prevent product buildup and inhibit bacteria growth

113 products

Socket-Connect Flow-Adjustment Valves

Insert unthreaded pipe and weld in place for a permanent, leak-tight connection

6 products

Flow-Adjustment Valves with Grooved-End-Clamp-On Fittings

Grooved ends connect to pipe with a clamp for easy installation

4 products

Compact Threaded Flow-Adjustment Valves for Cryogenic Liquid

A third of the height of other cryogenic valves, they're used with portable cylinders

3 products

Snap-Shut Threaded Flow-Adjustment Valves

Open and throttle as force is applied to the lever and automatically close upon release

23 products

Flow-Adjustment Valves with Solder-Socket Fittings

Solder to copper tubing for a permanent, leak-tight connection

6 products

Threaded Flow-Adjustment Valves with Garden Hose Outlet

Attach a garden hose to the valve outlet

5 products

Threaded Flow-Adjustment Valves with Fire-Fighting Hose Fittings

Connect to fire hydrants, pumps, and hoses for unrestricted flow when fully open

3 products

Flow-Adjustment Valves

Manually adjust the flow of oil to a single lubrication point

16 products

Plastic Threaded Flow-Adjustment Valves with Garden Hose Outlet

Made of plastic, they're a lightweight, corrosion resistant alternative to metal

8 products

Electrically Operated Flow-Adjustment Valves

Automatically start and stop flow so lubricant dispenses only while equipment is running

2 products

Precision Flow-Adjustment Valves

Easy-Set Threaded Precision Flow-Adjustment Valves

Color-coded threads and numerical markings ensure consistent, repeatable settings

39 products

High-Pressure Threaded Precision Flow-Adjustment Valves

Withstand at least 6,000 psi in hydraulic and compressed air systems

60 products

Threaded Precision Flow-Adjustment Valves

Adjust flow in small increments for fine control, such as in metering or sampling

34 products

Easy-Set Plastic Threaded Precision Flow-Adjustment Valves

Color-coded threads and numerical markings ensure consistent and repeatable settings

12 products

Precision Flow-Adjustment Valves with Barbed Fittings

Barbs grip onto tubing for a secure hold

7 products

Precision Flow-Adjustment Valves with Push-to-Connect Fittings

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

5 products

Plastic Threaded Precision Flow-Adjustment Valves

A lightweight alternative to metal for adjusting flow in small increments

11 products

High-Temperature Threaded Precision Flow-Adjustment Valves

Rated for nearly twice the maximum temperature of standard valves, up to 700° F

5 products

Precision Flow-Adjustment Valves with Yor-Lok Fittings

Two sleeves bite into tubing as you tighten the nut for a strong grip and seal

8 products

Panel-Mount High-Pressure Threaded Precision Flow-Adjustment Valves

Install in instrument panels with pressures up to 10,000 psi

2 products

High-Precision Threaded Flow-Adjustment Valves

Adjust flow in smaller increments than other valves for finer control over the flow rate

9 products

Panel-Mount Threaded Precision Flow-Adjustment Valves

Use the hex nut and threads that sit below the handle to install in instrument panels

12 products

Threaded Precision Flow-Adjustment Valves with Gauge Ports

Install two pieces of instrumentation to monitor multiple media without interrupting flow

8 products

Precision Flow-Adjustment Valves with Compression Fittings

A compression sleeve bites into tubing for a strong seal as you tigthen the nut

5 products

Compact Precision Flow-Adjustment Valves with Barbed Fittings

A low-profile body and a narrow port-to-port length to fit into tight spots

4 products

Threaded Precision Flow-Adjustment Valves with Vent Port

Remove instrumentation equipment without depressurizing your line

16 products

High-Pressure Threaded Precision Flow-Adjustment Valves with Vent Ports

Isolate gauges, switches, and more for interruption-free maintenance, calibration, and sampling

2 products

Precision Flow-Adjustment Valves with 45° Flared Compression Fittings

Flared tube fittings form a tight seal on metal tubing

2 products

Precision Flow-Adjustment Valves with Solder-Socket Fittings

Solder to tubing for a permanent, leak-tight connection

2 products

Actuated Flow-Adjustment Valves

Motor-Driven Flow-Adjustment Valves

A motor adjusts better than solenoid valves in high flow and pressure applications

4 products

Solenoid Flow-Adjustment Valves

Adjust and regulate flow based on the intensity of the electrical signal

5 products

Air-Driven Flow-Adjustment Valves

Operate on compressed air for faster actuation than motor-driven valves

4 products

Compact Solenoid Flow-Adjustment Valves

Smaller than other solenoid valves, they're often used in instrumentation

2 products

Flanged Flow-Adjustment Valves

Bolt to flanges to adjust and regulate flow in flanged pipelines

68 products

Long-Life Flanged Flow-Adjustment Valves

Open and close with minimal wear on components for longer service life

3 products

Lightweight Flanged Flow-Adjustment Valves

An aluminum body for strength and durability at half the weight of other flanged valves

8 products

Plastic Flanged Flow-Adjustment Valves

A plastic body for the lightest weight of our flanged valves

3 products

Flanged Flow-Adjustment Valves for Steam

Rated for steam pressure up to 100 psi at 400° F

2 products

Flanged Flow-Adjustment Valves for Chemicals

Seats withstand aggressive and corrosive solutions

35 products

Flanged Flow-Adjustment Valves for Drinking Water

NSF/ANSI compliant for use with drinking water

8 products

Plastic Flanged Flow-Adjustment Valves for Chemicals

With no metal parts to corrode, they're our most corrosion-resistant flanged valves

8 products

Balancing Valves

Threaded Balancing Valves

Measure pressure differential across the valve and change the flow rate

8 products

Solder-Socket Balancing Valves

Attach with solder to measure pressure differential and change the flow rate

3 products

Precision Flow-Adjustment Valves for Steam

Threaded Precision Flow-Adjustment Valves for Steam

Use in applications with steam pressure up to 200 psi at 450° F

7 products

High-Pressure Threaded Precision Flow-Adjustment Valves for Steam

Withstand a maximum steam pressure of at least 4,800 psi at 355° F

3 products

Precision Flow-Adjustment Valves with Sanitary Quick-Clamp Fittings for Clean Steam

Smooth internal surfaces prevent product buildup and inhibit bacteria growth

7 products

Precision Flow-Adjustment Valves with Yor-Lok Fittings for Steam

Two sleeves bite into tubing as you tighten the nut for a stronger grip and seal

3 products

Precision Flow-Adjustment Valves for Chemicals

Precision Flow-Adjustment Valves with Barbed Fittings for Chemicals

Barbs grip onto tubing for a secure hold

3 products

Threaded Precision Flow-Adjustment Valves for Chemicals

A fluoroelastomer seal and plastic body withstand corrosive solutions

9 products

Precision Flow-Adjustment Valves with Yor-Lok Fittings for Chemicals

Two sleeves bite into tubing as you tigthen the nut for a stronger grip and seal

3 products

Precision Flow-Adjustment Valves with Push-to-Connect Fittings for Chemicals

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

2 products

Precision Flow-Adjustment Valves for Food and Beverage

Precision Flow-Adjustment Valves with Sanitary Quick-Clamp Fittings for Food and Beverage

Smooth internal surfaces prevent product buildup and inhibit bacteria growth

7 products

Precision Flow-Adjustment Valves with Barbed Fittings for Food and Beverage

Barbs grip onto tubing for a secure hold

2 products

Precision Flow-Adjustment Valves with Push-to-Connect Fittings for Food and Beverage

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

2 products

Noncontact Flow-Adjustment Valves

Plastic Noncontact Flow-Adjustment Valves

With no metal parts, they're suitable for wet and harsh environments

11 products

Noncontact Flow-Adjustment Valves

Press down on tubing to adjust flow without contacting the process media

7 products

Panel-Mount Noncontact Flow-Adjustment Valves

Install in instrument panels

1 product

Laboratory Flow-Adjustment Valves

Interchangeable, color-coded buttons designate lines for air, gas, and vacuum

2 products

Precision Flow-Adjustment Valves for Fuel

Threaded Precision Flow-Adjustment Valves for Fuel

Turn the handle to adjust the flow of gas, propane, and other fuel in small increments

2 products

Precision Flow-Adjustment Valves with Barbed Fittings for Fuel

Barbs grip onto tubing for a secure hold

4 products

Flow-Adjustment Valves for Hydraulic Jacks

Control the flow of oil to adjust ram speed, or shut off to temporarily hold a load

2 products

Metering Valves for Abrasive Blasting

Control the amount of abrasive material that your blast hose releases

8 products

Other Products

Air Flow Control Valves

Control the speed of air-powered equipment by adjusting the volume of airflow entering or exiting

293 products

Flow-Regulating Valves

Maintain the set flow rate of fluid through your system

50 products

Vacuum-Regulating Valves

Control the amount of air that a vacuum pump draws from your system to maintain vacuum levels

14 products

Air-Exhaust Valves

Vent or divert exhaust to speed up the operation of air cylinders, actuators, and other equipment

28 products

Hydraulic Flow-Adjustment Valves

Turn the knob to gradually adjust the flow of hydraulic fluid

2 products

Flow-Adjustment Valve Manifolds

Control flow to multiple points from one source

8 products

On-Off Valves

Start and stop flow through a line

5 products