Description
Definitive for extended operation of SWAS depends upon the principle of sample conditioning components for which accurate pressure flow and temperature control is most essential. Excessively hot samples can cause damage to expensive and sensitive sample conditioning components of the process analyzer. The auto shutoff valve is widely used in Steam Water Analysis Systems ( SWAS ) in power plants. The Haf provides a very reliable Auto shut-off valve also called HIA-WCSF. This is functioning directly exposed to the sample media via the thermal expansion principle using wetted media. HIA-WCSF is a self reliant, fully mechanical device that required no external source of electricity or pneumatic or hydraulic. It is developed to sustend the sample temperature up to 50°C ± 2°C. After shutting off HIA-WCSF, it must be reopened by pressing the manual reset button which ensures the no flow resumes and the safety of the upset component has been amended. The Haf HIA-WCSF is constructed with SS 316 and other wetted parts are compatible with boiler water and steam. HIA-WCSF is mainly used downstream of the pressure-reducing component and upstream of analyzers, flow meters, and other low-pressure devices. After shutting off the upstream side of the HIA-WCSF will be opened to the full source pressure.
Advantage
- Rugged, compact design
- No power source require
- Reliable tight shut off
- No – leakage up to define range
- Corrosion resistive material
- Fast response to shut off
Features
- Desirable for balanced service in high temperature
- Ease for installation
- Fully mechanical device
- Alarm contact ( Optional )
- Fix temperature shut off
- Manual Reset facility
Applications
- Oil and Gas,
- Chemical and Petrochemical Industries,
- Power Generation,
- Water and Wastewater
- Boiler
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