Metering Valves

Parker metering valves are designed to provide accuracy and stability of flow rates in analytical, instrumentation and research applications. We offer a wide variety of options and assemblies. Our range includes pressure compensated flow control valves which extend to applications that demand constant flow with varying loads and pressures. These valves have the ability to work to high flow and high pressure specifications and can also operate under high temperatures. As a result, our metering valves are suitable for a variety of applications, including those that work in extreme environments, across many of the major industrial markets.

In-line Flow Control Valve – F Series

The Colorflow F series of hydraulic flow control valves permits free flow in one direction and metered flow in the reverse direction. This flow control valve is used in air and oil applications.

UHP PFA Manual Needle Valve (sizes up to 1/2 inch) – MV-13 Series

The MV-13 Series PFA Manual Needle Valve offers excellent leak integrity and exceptional resistance to corrosion. It has a PTFE ferrule and is designed to provide precise flow control in ultra-high purity and aggressive fluid handling applications.

Needle Flow Control Valves

Parker offers standard needle valves and needle valves with a reverse free-flow check. Parker’s needle valves are non-compensated adjustable orifices capable of flows up to 225 lpm (60 gpm) and pressures as high as 420 bar (6000 psi).

Pressure Compensated Flow Control Valves

Parker offers a wide range of pressure compensated flow controls for applications that demand constant flow with varying loads and pressures; handling pressures as high as 420 bar (6000 psi) and flows to 56 lpm (15 gpm) in a single common cavity.

Colorflow Precision Needle Valve – MVI Series

Parker’s Colorflow MVI series is a cartridge-type metering valve that meters flow in both directions.

Needle Valve, Subplate Mounted – NS Series

Parker's NS series needle valve provides excellent speed control and shutoff for hydraulic applications where a free reverse-flow check is not needed.

Flow Control, Subplate Mounted Valve – FS Series

Parker’s FS series flow control valve offers superior construction and high versatility due to its variety of materials, sizes and port styles. It can be used in both the mobile and industrial markets.

2 Way Flow Control Proportional Valves

Parker offers an extensive range of 2-way flow control proportional valves through the use of Current Controlled Pulse Width Modulation (PWM) valve drivers with flow capabilities up to 227 lpm (60 gpm) and pressures as high as 210 bar (3000 psi).

Pressure Compensated Priority Flow Control Valves

Pressure compensated priority flow control valves maintain constant flow regardless of changes to inlet pressure for flows up to 90 lpm (24 gpm) and pressures up to 420 bar (6000 psi); excess flow is diverted once the priority flow requirement is met.

Colorflow In-Line General Purpose Needle Valve – N Series

Parker's Colorflow N series hydraulic flow control, in-line needle valves meters flow in both directions or provides a reliable shut off. This needle valve flow control is used in air and oil applications and has standard and fine metering options.

Colorflow In-Line Precision Needle Valve – MV Series

Parker’s Colorflow MV series valves is a high precision adjust needle valve that meters flow in both directions.

Colorflow In-Line Pressure Compensated Valve - PC*M Series

Parker’s Colorflow PC*M series in-line pressure compensated valves regulate flow at a selected rate within 5% regardless of fluctuations in inlet and outlet flow. This hydraulic flow control valve can be used within a variety of applications.

Colorflow In-Line Pressure Compensated Valve - PC*K Series

Parker’s Colorflow PC*K series in-line hydraulic valve is a pressure compensated flow control valve that regulates flow at a selected rate within 5% regardless of fluctuations in inlet and outlet flow.

Flow Control Valve, Subplate Mounted - PC*MS Series

Parker’s PMCS series valves are designed to regulate flow at a selected rate.

3 Way Flow Control Proportional Valves

Parker selection of normally-closed 3-way flow control proportional valves used with Current Controlled Pulse Width Modulation (PWM) valve drivers have flow capabilities up to 75 lpm (20 gpm) and pressures as high as 210 bar (3000 psi).

Metering Valve, 2,000 PSI - NS Series

Parker's NS Series Metering Valves provide accurate and stable control of flow rates in various applications up to 2,000 PSI (138 BAR). These metering valves can’t be overtightened due to a “positive stop” handle design.

Metering Valve, 1000 PSI - NL Series

Parker's NL Series Metering Valves provide accurate and stable control of flow rates in various applications up to 1,000 PSI (138 BAR). These higher flow metering valves have a Cv of .207 for Inline and .299 for Angle body pattern.

Metering Valve, 250 PSI - HR Series

Parker's HR Series Metering Valves provide the highest degree of precision metering for moderate pressure applications up to 250 PSI (17 BAR). Flow can be controlled from a Cv of 0.00034 to a Cv of 0.0900.

Metering valve, 1000 PSI - NM Series

Parker's NM Series Metering Valves provide accurate and stable control of flow rates in various applications up to 1,000 PSI (138 BAR). These medium flow metering valves have a Cv of .055 for Inline and .057 for Angle body pattern.

Priority Pressure Compensators

Parker’s priority pressure compensators provide constant flow regardless pressure changes via a fixed or adjustable orifice with priority to one outlet port. These valves can handle flows up to 95 lpm (25 gpm) and pressures up to 380 bar (5500 psi).

Pressure Compensated Proportional Poppet Valves

Parker’s family of 2-way proportional poppet valves are available normally-open or normally-closed with a standard integrated pressure compensator; capable of flows up to 83 lpm (22 gpm) and pressures as high as 210 bar (3000 psi).

Pressure Compensators/Control Elements

Parker’s pressure compensator valves provide constant flow regardless of upstream or downstream pressure changes via a fixed or adjustable orifice. These valves can handle flows up to 150 lpm (40 gpm) and pressures up to 245 bar (3500 psi).