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Product
Three-way pressure instrument manifold
The screwed three-way manifold: female process, gauge and drain ports in one block, in a straight and a right-angle pattern.

Manifolds
Three-way pressure instrument manifold
Two valve manifold is designed in a single block with female screwed inlet and outlet port combining isolation valve and calibration / vent valve. Generally used on static pressure transmitters, switches or gauges.
Two patterns are offered. The straight type, Model No. 2 MNV, takes process, gauge and drain in line; Angle Type II puts the gauge in line with the drain / vent and brings the process in at a right angle. Both are 70 mm across the block, 98 mm to the first valve centre and 110 mm overall, in every port combination FC lists.
Ports are 1/2" and 3/4" NPT (F) and 1/2" BSP (F), with 1/2" and 3/4" nipple butt / socket weld process ends available against female NPT gauge and drain ports. The drain port can be taken at 1/4" where the process and gauge ports are 1/2".
- Max working pressure
- up to 620 kg/cm² body / 413 kg/cm² seat (hydrostatic test)
- Body materials
- A 105, A 479 SS304, A 479 SS316, A182 Gr F 316 SS, Monel, Hastelloy
- Thread systems
- NPT, BSP, NBSW
Features
- Straight (Model No. 2 MNV) and Angle Type II patterns
- Female screwed process, gauge and drain ports
- 1/2" and 3/4" NPT (F), 1/2" BSP (F) and NBSW process ends
- Isolation and calibration / vent valve in one block
- PTFE gland packing as standard, Graphoil above 180 °C
Applications
- Static pressure transmitter hook-ups
- Pressure switch isolation
- Gauge isolation and calibration
- Instrument impulse lines
- Max working pressure
- up to 620 kg/cm² body / 413 kg/cm² seat (hydrostatic test)
- Thread systems
- NPT, BSP, NBSW
- Body materials
- A 105, A 479 SS304, A 479 SS316, A182 Gr F 316 SS, Monel, Hastelloy
- Temperature
- PTFE gland packing as standard; Graphoil above 180 °C
- Testing
- Hydrostatic body 620 kg/cm², seat 413 kg/cm²; pneumatic seat 40 kg/cm², at 25 °C
| 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 |
| 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 |
A 105
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
A 479 SS304
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
A 479 SS316
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
A182 Gr F 316 SS
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
Monel
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
Hastelloy
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
Certification pack available on request for this range.
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