Parker offers the most comprehensive range of instrumentation valves in the Industry. These high quality valves perform in system pressures up to 150,000 psi. Innovative performance designs are available in all of our needle valves, ball valves, check valves, relief valves, metering valves, block and bleed valves, stream switching valves, and control valves. We offer these instrumentation valves in multiple configurations, end connection sizes and a variety of materials. Parker has the instrumentation valve to meet your system’s specific application.
Parker’s Hi Check series high performance non-return valves are designed for unidirectional flow control of fluids and gases in process instrumentation applications. There is a choice of two check valve models, with cold working pressures of 10000 PSI (689 bar) and 6000 PSI (414 bar). Both check valves have an opening (or ‘cracking’) pressure of 10 PSI (0.7 bar). These robust check valves feature a two-piece metal seated body design to minimise any risk of leakage. The Parker check valves are available with a choice of integral male or female NPT, or single- or two-ferrule compression style ends, the compression ends enable users to eliminate the use of taper threads and thread sealant – further reducing the number of potential leakage paths and avoiding system contamination problems.
There is a comprehensive range of inlet and outlet connections, covering imperial sizes of 1/4″, 3/8” and 1/2″, and metric sizes of 6 mm, 10 mm and 12 mm. The check valves are designed to meet the pressure and temperature requirements of ANSI/ASME B.16.34, as limited by the seat materials. NACE compliant versions are available.
Parker R Series Relief Valves are unique since they offer both a low pressure valve line (RL4) and a higher pressure valve line (RH4). They are both designed such that when the upstream pressure exceeds the closing force exerted by the spring, the lower stem opens, permitting flow through the valve. Flow through the valve increases proportionately to the increase in upstream pressure.
Parker Autoclave’s 2B Series ball valves have been designed to provide superior quality for maximum performance within a variety of valve styles, sizes, and process connections. These ball valves feature an integral one-piece trunnion mounted ball and stem that eliminates the shear failure common to two-piece designs. The seat glands are re-torqueable for longer seat life, and the low friction pressure-assisted graphite filled PTFE stem seal reduces actuation torque and increases cycle life.
Parker Autoclave’s 3B Series ball valves have been designed to provide superior quality for maximum performance within a variety of valve styles, sizes, and process connections. These 3 way ball valves feature an integral one-piece trunnion mounted ball and stem that eliminates the shear failure common to two-piece designs. The seat glands are re-torqueable for longer seat life, and the low friction pressure-assisted graphite filled PTFE stem seal reduces actuation torque and increases cycle life.
Parker Autoclave’s 4B Series ball valves have been designed to provide superior quality for maximum performance within a variety of valve styles, sizes, and process connections. Some of the more unique design innovations include an integral one-piece trunnion mounted style ball and stem that eliminates the shear failure common in two piece designs, re-torqueable seat glands that result in longer seat life, and a low friction stem seal that reduces actuation torque and enhances cycle life.
Parker Autoclave’s 10V Series needle valves are a non-rotating rising stem design, working pressures to 15,000 psi (1034 bar). Tubing sizes range from 1/8″” to 1/2″”. Tubing connections utilizes Parker Autoclave Engineers Speed Bite single ferrule design. Operating temperatures from 0°F to 650°F (-17.8°C to 343°C). 316 stainless steel construction, other options available. Along with their many features these valves provide dependable and trouble free service in wide variety of applications.
Parker Autoclave’s 20DV Series diverter needle valves are designed with a non-rotating rising stem valve, with working pressures to 20,000 psi (1379 bar). This diverter valve uses the Parker Autoclave tubing in sizes ranging from 9/16″” to 1″”. Diverter valves provide the ability to direct incoming flow to one of two outlets. Flow is changed by rotating the handle in or out causing a double-ended stem to block the flow path to the outlet not needed.
Parker Autoclave’s P Series pipe needle valves are designed to provide a commercial easy to use connection for gas and liquid service. These valves are complemented by a complete line of fittings, tubing and accessories. P Series valve design provides in-line pipe connections for 1/4” to 1” pipe sizes. These pipe valves work in pressures up to 15,000 psi (1034 bar). Operating temperatures can go from -423F to 400°F (-252°C to 204°C) with 316 stainless steel body as standard.
Parker Autoclave’s RVP Series relief valves are designed with a metal seat design for reliable venting of gases at set pressures from 3,000 psi (206 bar) to 75,000 psi (5171 bar). The operating temperature range is -423°F (-252°C) to 400°F (204°C).These precision relief valves are designed for thermal expansion or low volume relief applications at high pressures where flow is not critical. Thus, liquid curves for these models are not shown in the catalog.
Parker Autoclave’s 150V Series needle valves are cylindrical body design of high strength 15-5PH stainless steel with a non-rotating rising stem design that utilizes a replaceable seat of nickel maraging steel. These specialty valves operate in pressures up to 150,000 psi (10350 bar). The tubing size is only available in 5/16”. Tubing connections utilize the Parker Autoclave cone and thread design.
Parker’s NP6 Needle Valves are severe service, needle valves. They are designed with the packing below the stem threads and a two-piece stem for critical systems up to 6,000 PSI (414 BAR). The packing below the threads protects the flow stream from thread lubricant contamination or washout and also protects the stem threads from potential damaging effects of the media. The two-piece stem produces a non-rotating lower stem for superior, repeatable sealing and reduced packing wear.
Bar stock needle valves are purpose designed valves for operation with any fluid up to 10,000 psi (689 bar) rating. Complete with standard PTFE gland packing and self-centering non-rotational tip, gives the user assurance of total in service sealing security. For gaseous application, soft tipped optional seating is available. A wide variety of end connectors are offered for all types of installation. NACE compliant materials and oxygen clean are also available, along with an extensive list of materials of construction.