- BrandNeedle
- Type of valveNeedle
FEATURES
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Pressure rating up to 5000 psi (340 bar) at 380C (1000F).
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Temperature rating from -530C (-650F) to 2320C (4500F) with standard PTFE packing, up to 3150C (6000F) with Grafoil packing.
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Materials: Standard 316SS and Brass. (Other materials are available on request as factory specials).
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Forged body with straight and angle pattern.
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Panel mounting without packing disruption.
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Wide choice of end connection: CRESCENTLOK® Tube Fittings, Male & Female NPT or PT (ISO 7/1) thread, Socket Weld ANSI/ASME B16.11.
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Standard lubrication: Nickel anti-seize lubricant (Hydrocarbon carrier
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Standard seat: Metal to metal/body material.
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Optional sea: Metal to metal/satellite, hard coating, soft seat.
STEM
V Steam is standard for pressure tightness even at elevated temperatures. Regulating Stem & Soft-seat Stem is optional.
GAS SERVICE
Materials for wetted valve component are selected in accordance with NACE standard MR 0175-2000 for sulfide stress cracking resistant.
TESTING
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Standard Factory Test: Every needle valve is 100 factory tested with air and nitrogen at 1000psi (69bar) for leakage a the seat and packing. Each test is performed to maximum allowable leak rate of 0.1sec/min.
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Optional Hydrostatic Test: This hydrostatic shell test is performed with pure water at 1-1/2 times of the working pressure. Other optional tests are available upon request.
VALVE SELECTION
When selecting the needle valves, the total system design must be considered to ensure safe, trouble-free performance. Valve function, materials compatibility, adequate ratings, proper installation, operation and maintenance are the responsibility of the system designer or user.