PORTER Flow Control Valves

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Peak performance in low flow liquid and gas applications
Porter Metering Valves are designed for extremely precise control in low flow gas and liquid applications. They are available as valve cartridges, integrally mounted in flowmeters and in-line valve assemblies with straight or angle patterned bodies. All in-line valves assemblies have 1/8” female NPT inlet and outlet ports.

High Resolution Control Valves
The HR Series High Resolution Control Valves contain unique design features that make them the ultimate choice for precise low flow control.

Spring loaded, non rising adjustment stem with 56-pitch thread provides smooth, non-reversing flow characteristics and 15-turn resolution.
Non-rotating stainless steel valve pin with precision ground flat gives exact control.
Valve pin o-ring guarantees positive shut-off without stem damage.
Self-lubricating orifice liner assures long life.
Seven available needle tapers expand valve capacity.

Capacities for HIGH RESOLUTION CONTROL VALVES

Needle Size (HRCV)		0	1	2	3	4	5	6
MAX FLOW	cc/min. - Helium	95	220	450	1250	3600	12500	50000
MAX FLOW	cc/min. - Water	2	6	15	30	100	200	900

Note: Capacities measured with water or helium at 10 psig supply pressure and atmospheric pressure downstream. Capacities vary for different fluids and operating conditions.

RATINGS: Maximum Operating

	Temperature °F	Pressure PSIG
Brass Model	160°F	250
Stainless Steel Model	250°F	250

Connections - 1/8" Female NPT (integral)
Dimensions - Refer to PDF Specification sheet

Materials of Construction

Model	Body	Valve Pin	Valve Pin Holder	O-Rings	Orifice
HRCV Brass	Nickel Plated Brass	316 SS	Brass	Buna N	Brass w/ Fluorosint™ liner
HRCV Stainless Steel	316 SS	316 SS	316 SS	Viton	316 SS w/ Fluorosint™ liner

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