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| | | Catalog MRO-6/USA (Revised 07-20-07) Needle Valves | | |
| | | Flow Controls & Accessories "338" Series - 1/8" to 3/4" Ports | | |
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| | | General Information "338" Series needle valves bi-directionally meter the flow of air through the valve. This series features a fine tapered needle providing precise flow of air in both directions. Numerical micrometer position markings are stamped on the perimeter of the adjustment knob which provide a visual indication of the setting. Once the desired flow is selected, a set screw can be tightened to maintain the setting. These valves are available with NPTF ports in 1/8", 1/4", 3/8" 1/2" and 3/4" sizes. This series is recommended for pneumatic service | | |
| | | A | | |
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| | | B DIA. | | |
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| | | Valve Specifications Maximum Operating Pressure......................250 PSIG (Air) Operating Temperature...................Standard: 0° to 180°F* Extended Temperature......0°F to 300°F* (Consult factory) * Ambient temperatures below freezing require moisture-free air. Ambient temperatures below freezing and above 180° require lubricants especially selected for suitability at these temperatures. Pneumatic valves should be used with filtered and lubricated air. | | |
| | | O-ring for_U friction ™ | | |
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| | | H1 - OPEN H2- CLOSED | | |
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| | | Component Materials Body Material................................................................Brass Internal Components........................Stainless Steel / Brass Seals...........Nitrile (Fluorocarbon optional - consult factory) | | |
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| | | Model Selection and Dimensions | | |
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| | | | | | | | | | | | | | | | Model Number | Port Size | Dimensions | Kit | | | | A | B | C | H1 | H2 | | | | 003381100 | 1/8" | 9/16" | 0.75 | 1.47 | 2.03 | 1.81 | 00337 8000 | | | | 00338 1101 | 1/4" | 11/16" | 0.75 | 1.47 | 2.28 | 2.03 | 00337 8001 | | | | 00338 1102 | 3/8" | 7/8" | 0.88 | 2.31 | 2.84 | 2.53 | 00337 8002 | | | | 00338 1103 | 1/2" | 1-3/16" | 1.06 | 3.25 | 3.62 | 3.22 | 00337 8003 | | | | 003381104 | 3/4" | 1-3/8" | 1.06 | 3.25 | 3.72 | 3.31 | 00337 8004 | | | | | | | | | | | | | | | |
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| | | Performance Data - Flow | | |
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| | | | | | | | | | | Model Number | Port Size | Flow (SCFMt) | | | | 00338 1100 | 1/8" | 15 | | | | 00338 1101 | 1/4" | 28 | | | | 003381102 | 3/8" | 59 | | | | 003381103 | 1/2" | 126 | | | | 003381104 | 3/4" | 140 | | | | | | | | | | |
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| | | t At 100 PSIG inlet pressure with full pressure drop. | | |
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| | | A12 | | |
| | | Parker Hannifin Corporation Pneumatic Division Richland, Michigan | | |
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