Parker Autoclave VRMM Series, Micro-Metering needle valves are designed for applications where more precise control of small flows is required than is possible with a standard regulating stem. Barrel and Thimble micrometer design permits settings to be repeated. Metering is affected by a finely tapered stem acting in a precisely mated replaceable seat. Very fine stem position is achieved utilizing a 40 TPI thread. The Barrel and Thimble are set for proper metering at the factory. These valves are designed for metering only and cannot be used as a shutoff valve. Minimum flow is factory set and occurs at “0” position. DO NOT OPERATE THE VALVE BELOW THE ZERO POSITION OR DAMAGE WILL RESULT. When shutoff action is required, a correlated shutoff valve from Parker AE series 10V, 30VM or 60VM should be installed in series with the micro-metering valve.

Along with their many features these micrometering needle valves provide dependable and trouble-free service in wide variety of applications.

Markets:

• Oil and Gas

• Petrochemical

• Chemical

• Research

Features/Benefits:

• Barrel and Thimble design permits repeatable settings.

• Barrel divisions every 0.025”

• 25 Thimble divisions, each representing 0.001” stem travel

• One revolution = 0.025” stem travel

• Cold-worked type 316 stainless steel body with stainless steel packing gland. Stem and seat are cold-worked type 316 stainless steel.

• Packing below stem threads is PTFE for the 10VRMM and 30VRMM valves and nylon leather for the 60VRMM. For packing options, see Technical Section.

• SpeedBite “W” connections are used on the 10VRMM valves and Parker AE High Pressure coned-and-threaded connections on 30VRMM and 60VRMM needle valves.

Applications:

• High Pressure Pilot Plants

• Research Panels

• High Pressure Fluid Handling Systems

Brand: Autoclave Engineers