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Three-way pressure instrument manifold

Three-way pressure instrument manifold: 螺纹连接三通阀组：内螺纹工艺口、仪表口和排放口集成于一个阀块，提供直通型和直角型两种型式。

阀组

两阀阀组采用整体阀块设计，带内螺纹进出口，集成隔离阀和校验 / 放空阀。通常用于静压变送器、压力开关或压力表。

提供两种型式。直通型（Model No. 2 MNV）的工艺口、仪表口和排放口呈直线布置；Angle Type II 型的仪表口与排放 / 放空口呈直线，工艺口以直角引入。两种型式在 FC 列出的所有接口组合中，阀块宽度均为 70 mm，至第一个阀中心 98 mm，总长 110 mm。

接口为 1/2" 和 3/4" NPT (F) 以及 1/2" BSP (F)，另可提供 1/2" 和 3/4" 对焊 / 承插焊接管工艺端，配内螺纹 NPT 仪表口和排放口。当工艺口和仪表口为 1/2" 时，排放口可采用 1/4"。

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Specification	Details
Test Pressure	@ 25° C Room Temperature
Hydrostatic	Body – 620 Kg/cm² Seat – 413 Kg/cm²
Pneumatic	Seat – 40 Kg/cm²
Gland Packing	PTFE: Standard Graphoil: Temperatures above 180°C
Material	A 105, A 479 SS304, A 479 SS316, A182 Gr F 316 SS, Monel, Hastelloy
Finish	CS zinc plated and dichromated. SS: Natural
Option	Drain plug. Three piece union for gauge positioning

PTM 2

Specification	Details
Connections	Process: 1/2” NPT (F); Instrument: 1/2” NPT (F); Drain / Vent: 1/4” NPT (F)
Test Pressure	@ 25°C Room Temperature; Hydrostatic: Body – 620 Kg/cm²; Seat – 413 Kg/cm²; Pneumatic: Seat – 40 Kg/cm²
Gland packing	PTFE: Standard; GRAPHOIL: Temperatures above 180°C
Material	A 105, A 182 / A 479 Gr F304SS, A 182 / A 479 Gr F316SS, Monel, Hastelloy
Finish	CS: Zinc Plated and Dichromated; SS: Natural
Option	Drain Plug; Three piece union for gauge positioning
Accessory	Mounting Bolts – IS: 1364 - 1960

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