Features: pressure self-sealing valve cover, also under pressure to ensure good sealing performance Ming rod structure Integral seal down to remove seat low leakage test stem packing by automatically adjust the preload gland packing Application criteria: Design: API 602/ASME 16.34/BS 5352 Pressure Test: API 598 tag: MSS SP25 SW connector standard: ASME B16.11 threaded connector (NPT) Standard: ASME B1.20.1 Pressure rating CLASS 1500 CLASS 2500 Size range 1 / 4 "to 4" Optional Materials Carbon Steel: A105, LF2 Stainless Steel: F304, F304L, F316, F316L Duplex: F51, F55 Alloy: F1, F5, F5A, F9, F11, F22 |
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