The HR Series High Resolution Control Valves contain unique design features that make them the ultimate choice for precise low flow control, including:
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
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 valve assemblies have 1/8’’ female NPT inlet and outlet ports.
Connections: 1/8" Female NPT (integral)