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Product
Single Isolate / Vent Block
Low-pressure direct-mounting block for level measurement on atmospheric tanks, with a T-bar isolate handle and an anti-tamper vent handle.

Manifolds
Single Isolate / Vent Block
Designed for low pressure application and level measurement on atmospheric tanks with differential pressure transmitters. The isolate valve has a T-bar handle and the vent valve an anti-tamper handle, so the vent cannot be opened by hand in passing.
The instrument connection is flanged for direct mounting. Process and drain / vent connections are offered as 1/4" NPT (F), 1/4" BSPT (F) or 10 mm OD tube — the smallest ports in the range, which is what suits it to atmospheric-tank level service rather than pressure hook-ups.
Four mounting bolts to IS 1364-1960 and two PTFE or Viton interface seals are supplied with the manifold.
- 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
- For low pressure application and level measurement on atmospheric tanks
- Isolate valve with T-bar handle
- Vent valve with anti-tamper handle
- Flanged instrument connection for direct mounting
- Process and drain / vent 1/4" NPT (F), 1/4" BSPT (F) or 10 mm OD
- Accessory: mounting bolts 4 nos, interface seals 2 nos
Applications
- Level measurement on atmospheric tanks
- Low pressure differential transmitter hook-ups
- 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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