Flow-Adjustment Valves | McMaster-Carr

Filter by

Pipe Size

For Use With

Citric Acid (25% Concentration)

Citric Acid (50% Concentration)

Citric Acid (100% Concentration)

Body Material

Fitting Connection

Thread Type

UN/UNF (SAE Straight)

Actuation

Shape

Adjustable-Angle Elbow

Handle Style

Maximum Pressure @ Temperature

Valve Function

Tube OD

Flow Coefficient (Cv)

Connects To

Valve Type

Pressure Drop Assisted

Gender

Inlet Pipe Size

For Outlet Tube OD

Maximum Temperature

Material

Needle Material

Inlet Thread Type

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

Disc Material

1,188 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

Low-Pressure Threaded Flow-Adjustment Valves

Use for boiler maintenance and other low-pressure plumbing applications

11 products

Flow-Adjustment Valves

Manually adjust the flow of oil to a single lubrication point

16 products

Plastic Threaded Flow-Adjustment Valves

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

4 products

Easy-Install Plastic Threaded Flow-Adjustment Valves

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

1 product

High-Pressure Threaded Flow-Adjustment Valves

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

8 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

Threaded Flow-Adjustment Valves for Cryogenic Liquid

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

9 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

Plastic Socket-Connect Flow-Adjustment Valves

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

4 products

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

Grooved ends connect to pipe with a clamp for easy installation

4 products

Snap-Shut Threaded Flow-Adjustment Valves

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

23 products

Threaded Flow-Adjustment Valves with Garden Hose Outlet

Attach a garden hose to the valve outlet

5 products

Flow-Adjustment Valves for Dry Material

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

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

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 with Solder-Socket Fittings

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

6 products

Electrically Operated Flow-Adjustment Valves

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

2 products

Plastic Threaded Flow-Adjustment Valves with Garden Hose Outlet

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

8 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

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

Plastic Threaded Precision Flow-Adjustment Valves

A lightweight alternative to metal for adjusting flow in small increments

11 products

Easy-Set Plastic Threaded Precision Flow-Adjustment Valves

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

12 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

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 Compression Fittings

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

5 products

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

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

5 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 Barbed Fittings

Barbs grip onto tubing for a secure hold

7 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

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

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

2 products

Precision Flow-Adjustment Valves with 45° Flared Compression Fittings

Flared tube fittings form a tight seal on metal tubing

2 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 Solder-Socket Fittings

Solder to tubing for a permanent, leak-tight connection

2 products

Threaded Precision Flow-Adjustment Valves with Vent Port

Remove instrumentation equipment without depressurizing your line

16 products

Noncontact Flow-Adjustment Valves

Plastic Noncontact Flow-Adjustment Valves

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

11 products

Panel-Mount Noncontact Flow-Adjustment Valves

Install in instrument panels

1 product

Noncontact Flow-Adjustment Valves

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

7 products

Actuated Flow-Adjustment Valves

Solenoid Flow-Adjustment Valves

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

5 products

Compact Solenoid Flow-Adjustment Valves

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

2 products

Motor-Driven Flow-Adjustment Valves

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

4 products

Air-Driven Flow-Adjustment Valves

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

4 products

Flanged Flow-Adjustment Valves

Bolt to flanges to adjust and regulate flow in flanged pipelines

68 products

Lightweight Flanged Flow-Adjustment Valves

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

8 products

Flanged Flow-Adjustment Valves for Chemicals

Seats withstand aggressive and corrosive solutions

35 products

Long-Life Flanged Flow-Adjustment Valves

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

3 products

Plastic Flanged Flow-Adjustment Valves for Chemicals

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

8 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 Drinking Water

NSF/ANSI compliant for use with drinking water

8 products

Plastic Flanged Flow-Adjustment Valves

A plastic body for the lightest weight of our flanged valves

3 products

Precision Flow-Adjustment Valves for Chemicals

Threaded Precision Flow-Adjustment Valves for Chemicals

A fluoroelastomer seal and plastic body withstand corrosive solutions

9 products

Precision Flow-Adjustment Valves with Barbed Fittings for Chemicals

Barbs grip onto tubing for a secure hold

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 with Yor-Lok Fittings for Chemicals

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

3 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 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 Push-to-Connect Fittings for Food and Beverage

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

2 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 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

Precision Flow-Adjustment Valves for Steam

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

Threaded Precision Flow-Adjustment Valves for Steam

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

7 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

Laboratory Flow-Adjustment Valves

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

2 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

Valve Bodies

Attach to actuators to automatically or manually control flow in your line

5 products

Flow-Regulating Valves

Maintain the set flow rate of fluid through your system

44 products

Air-Exhaust Valves

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

28 products

Directional Control Valves

Manage the flow of fluids to move equipment in air- and hydraulic-powered systems

10 products

Hydraulic Flow-Adjustment Valves

Turn the knob to gradually adjust the flow of hydraulic fluid

2 products