BVT : Ball Valve Test Machine
- Design Type : Screw with Bore Seal + Face Seal ( Proportional Control )
- End Connection : Flanged End / Butt Weld Type
- Test Standards : API 598 , BS 1873
- Pressure Class : # 150, # 300, # 600, # 900, # 1500, # 2500
- Pressure Class : PN-10, PN-16, PN-25, PN-40, PN-50, PN-60, PN-100, PN-160, PN-250, PN- 320, PN-400
- Valve sizes : DN 15 – DN 200
- Type of Valves : Gate Valve, Globe Valve, Ball Valve, Butterfly Valve ( without Actuator Assly for control valves )
EQUIPMENT INFORMATION :
- Single Screw Design with a movable seal head for height adjustment to suit the face length of valves.
- Vertical valve test orientation with stem Horizontal
- Hydraulic Clamp system with proportional clamping force adjustment as per the valve size and test pressure for face sealed valve types
- Non compressive for bore sealed valves
- Suitable for Gate , Globe, Ball and Butterfly Valves but without Actuator Assembly in case with control valves
- Test Media : High pressure water and Low Pressure Nitrogen Gas /Air
- Operator’s friendly machine
- Low Maintenance, Low floor space and robust machine
- Different Models to cover up the different range of valves to be tested.
- Provision of safety Guard for enhanced safety during test operations.
- For workshop/plant use.
- Easy, safe and accurate machine for testing the different types of valves
- Bubble jar for air seat leak tightness test
- Pressure Release Valves to release residual test pressure.
- Loading of valves from front.
- PLC for controlling the sequence of operations.
PROPORTIONAL CLAMPING:
- Hydraulic Proportional Clamping System to avoid excessive clamping force.
- Display of clamping force
- Safety Interlock to ensure that valve remains in clamped mode while under test pressure.
HYDRO SHELL TEST :
- Prefilling at Low Pressure water with air release
- High Pressure built up in valve as per the set value.
- Clamping force rise in proportion to the water pressure rise.
- Holding time, set pressure value as per the selection from HMI/ SCADA screen
- Release of pressure after test
HYDRO SEAT TEST :
- Prefilling at Low Pressure water with air release
- High Pressure built up in valve as per the set value.
- Clamping force rise in proportion to the water pressure rise.
- Holding time, set pressure value as per the selection from HMI/ SCADA screen
- Release of pressure after test
- Seat leak from both side of seat can be tested in the same valve test position ( optional feature )
- Manual collection of leak water for measurement
AIR SEAT TEST :
- Low Pressure Air as per the set value
- Holding time, set pressure value as per the selection from HMI/ SCADA screen
- Release of pressure after test
- Bubble Jar for witnessing seat leakage
- Seat leak from both side of seat can be tested in the same valve test position ( optional feature )
BORE SEALING :
- To be used for Butt weld end valves / Ball valves with machined bore.
- Special adapters are needed for bore sealed valves ( optional )
- No compressive force is transferred to valve body
DATA ACQUISITION SYSTEM :
- The automatic Data Acquisition System will be equipped with DAQ hardware to log data for set pressure value automatically and high precision pressure sensors and Digital Display.
- Alternatively, To generate and save customized reports in the computer, a PC based software and other required accessories will be included.
- This will help maintaining all the records inside the pc. USB / LAN can be used for communicating with test terminal for transferring the test reports to customer via internet.
- Automatic digital bubble counter also can be offered optionally for the leak tightness reports.
OPTIONAL :
- SCADA based DAQ system for report generation and report saving in a pc.
- Digital Bubble Counter for seat leak measurement
- Actuator operation system