Product
Four-Valve Direct Mounting
Double isolate / vent block for services where the process fluid must not be contaminated, with a tamper-proof vent handle.
Manifolds
Four-Valve Direct Mounting
Designed for differential pressure instruments on services where the process fluid must not be contaminated. The block double-isolates, and the vent / drain valve carries a tamper-proof handle that is removed after operation — the arrangement to use with hazardous fluids, where a vent left openable is the risk.
Dimensions are for the standard 54 mm (2 1/8 in) instrument connection centre distance, which is what most instruments use. The manifold is also made for other centre distances — 55 mm, 56 mm and 57 mm — with dimensions to suit; ask for those.
Process and drain connections are 1/4" NPT (F), 1/4" BSPT (F) or 10 mm OD tube, and the instrument connection is flanged. Four mounting bolts to IS 1364-1960 and two PTFE or Viton interface seals are supplied.
- Max working pressure
- up to 620 kg/cm² body / 413 kg/cm² seat (hydrostatic test)
- Body materials
- A 105, A 182 Gr F 304SS, A 182 Gr F 316SS, Monel, Hastelloy
- Thread systems
- NPT, BSPT, Flanged
Features
- Double isolate / vent block
- For services where the process fluid must not be contaminated
- Vent / drain valve with a tamper-proof removable handle
- Suitable for hazardous fluids
- Process and drain 1/4" NPT (F), 1/4" BSPT (F) or 10 mm OD
- Instrument flanged
- Accessory: mounting bolts 4 nos, interface seals 2 nos
Applications
- Hazardous fluid service
- Differential pressure instruments on uncontaminated process fluids
- Direct-mounted DP transmitters
- Max working pressure
- up to 620 kg/cm² body / 413 kg/cm² seat (hydrostatic test)
- Thread systems
- NPT, BSPT, Flanged
- Body materials
- A 105, A 182 Gr F 304SS, A 182 Gr F 316SS, 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
A 105
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
A 182 Gr F 304SS
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
A 182 Gr F 316SS
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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