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Valves
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VX36 Series
Excess FlowValves
The spring loaded poppet keeps the valve open position in the normal operation.
When an excess flow occurs downstream, the poppet immediately moves to the tripped position to stop rapid release of system fluid.
The valve returns to open position when pressure equalizes through the bleed vent constructed on poppet. The spring in the
poppet resets the valve to open position. The least volume of flow goes through the bleed vent that is less than 1% of the valve
flow rate while the valve in the tripped position.
Spring-loaded poppet design allows valve for use in vertical, horizontal or in any orientation.
•
Every valve is factory tested for performance in the tripped and open position.
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Valves are cleaned and packaged as per the requirements of DK Tech’s product cleaning standard of DC-01.
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Oil free special cleaning and packaging in compliance with ASTM G93 Level C is available on request.
Operation
Factory Test, Cleaning and Packaging
Materials of Construction
Component
Material
* 1. Body
SS316/ASTM A276 or ASTM A479
* 2. Connector
* 3. Poppet
* 4. Spring
SS302/ASTM A313
* 5. O-ring
Standard FKM O-ring
Optional NBR, EPDM, and FFKM
6. Backup ring
Standard PTFE / ASTM D1710
Optional PEEK
7. Indicator ring
Red-color anodized Aluminium
* Wetted parts and lubricants listed in
blue
.