In a yet another milestone for R&D Multiples, we have successfully conducted the POD test for 2800mm/112” HOPD* Butterfly valve as per AWWA C516-10 on 5th February, 2016. We are also proud to announce that we are one of the only manufacturers to have conducted this with the electro-hydraulic job actuator.

The following tests were carried out:

• Performance test (three times full open to close operation with hydraulic actuator)
• Free fall test as per NTPC’s specific requirements
• Body hydrostatic test
• Hydrostatic tests in both directions
• Seat leakage test before Cycle test for 15 mins
• Cycle test of 200 operations with electro-hydraulic job actuator
• Seat leakage test after Cycle test for 15 mins

Some of the key design features of this product are as follows:

• Hydraulic drive from both ends (stub & bottom) - for enhanced stability of performance
• All components designed for free-fall condition loads
• Sturdy Box-Type cylinder mounting also enabling enough space for various instrumentations
• Body mounter cylinder (and NOT Floor mounted)
• All feedbacks from the valve are provided and can be controlled from a Centralized Command Centre

* HOPD: Hydraulically operated pump discharge valves are actuated with a hydraulic power-pack and single-acting cylinders. The linear stroke of the cylinder is converted into 900 rotary movement of the valve disc. Auxiliary support are provided for open/close of valve disc in a controlled manner. In the case of an emergency, the valve disc can be closed using the force of gravity acting on the mounted counter-weights.