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Design Features
The R-K NLA series no lube air valves features a compact thermoplastic valve availabe in six models for uses in which no lubrication is required or permitted in the valve and to handle a multitude of piping system functions.
This patented valve is designed so there is no metal contact with the fluid. Automatic fail-safe shut-off, and can be operated in any position.
Air actuated at 40 to 80 PSI.
Direct acting full flow with top entry for easy maintenance and minimum water hammer.
Suitable for most harsh chemicals, DI water and other high purity applications.
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No Lube Air Valve
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Specifications
Operating Pressure Range Vacuum to 150 PSIG
Material ValveBody PVC Type 1, Grade 1
Polypropylene
PVDF
Teflon
Seal EPDM
Viton(R)
Kalrez(R)
Temperature Range 0 F to 140 for PVC
0 F to 180 F for POLYPRO
0 F to 280 F for PVDF
0 F to 340 F for TEFLON
Valve ports 1/4" to 1" Valve FNPT
1.5" to 2" Valve MPT
All valves are fully ported
Valve Types:
Type 1: Normally Closed
Type 2: Normally Open
Type 3: Air to open - Air to close (No spring action)
Type 4: Bottom flow control (has an adjusting screw located on
bottom to limit the flow, apply air to open to pre-set flow rate;
airoff, valve returns to normally close position)
Type 5: Top flow control (an adjusting screw located on top to
permit a constant pre-set flow, apply air to full flow,
air off to return to pre-set flow)
Type 6: Top and Botton flow control (combination of Type 4 and Type 5)
Mounting Method (4) 1/4" -20 tapped holes
standard machine valve body.
(1/4" to 1.00")
(2) cut-out slots on molded
valve body (1/2" to 1.00")
Kalrez® and Viton® are registered trademarks of DuPont Dow Elastomers.
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Order
Information
The chart below will specify R-K standard
valves regarding valve size, valve material, and seal material.
For special orders, please consult the factory for pricing
and delivery information.
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