control valve test modules :
module-ht1 : vacuum system
- this will be useful for quick pre filling of test valve by way of evacuation the complete valve cavity before pre filling is started
- this will help eliminate compression of residual air inside valve and help increase sealing life and hazardous way of escaping trapped air outside forcibly.
- the system will include a suitable vacuum pump, moisture receiver tank with drain valve, hose pipe, vacuum gauge/ sensor and isolation valve for vacuum line.
module-ht2 : prefill system
- mainly used for water prefilling inside valve before pressurization and after soft clamping of valve body
- low pressure prefilling pump arrangement for prefilling of valve before test
- water tank with level controller and drain valve.
- water filtration and recirculation system
- safety bypass valve
module-ht3 : high pressure hydro shell test
- hydro shell test with high pressure water to suit the different pressure class of the valve under test
- hydraulic power driven pump which is highly reliable, self lubricated and less maintenance prone has a larger discharge capacity to built up required pressure in a reasonable time compared to air driven hydro-pneumatic pumps.
- dual speed design for better control over pressure.
- hydraulic driven high pressure pump, cartridge filters, suction and discharge nrv and accessories.
module-ht4 : high pressure hydro seat test
- required pressure will be applied from pressure source available .
- pressure drop to be observed.
- seat leak in a flow direction of a valve. Pressurization from both side available as option
module-ht5 : low pressure air seat test system
- dry utility air at 7 bar inlet air pressure shall be provided by customer for this test
- air regulator, pressure transmitter, solenoid valve , nrv etc will be incorporated
- seat leak in a flow direction of a valve. Pressurization from both side available as option
module-ht6 : high pressure air test system ( optional )
- provision of high pressure air compressor suitable for generating test pressure upto 300 bar ( 4500 psi ) and suitable for testing of valves upto 200 bar ( 3000 psi ), with high pressure reservoirs for storage and test pressure control needle valves/ gauges and other required hardware.
module-hc1 : low pressure air seat leak detection and measurement system
- rotameters of various ranges with isolation ball valves for air seat leak measurement ( range will be selected as per the customers requirement of test parameters )
- digital mass flow meter available as an option ( range will be selected as per the customers requirement of test parameters )
- bubble jar arrangement for visualization of seat leak for very small amount of leakages across seat.
- digital bubble counter available as an option for visualization of seat leak for very small amount of leakages across seat
module-hc2 : seat leak testing arrangement by water
- required pressure will be applied from pressure source available .
- measurement of leakage through seat shall be done manually by collecting the same in a marked beaker from the non pressurized side of seat.
actuator operations :
module-ac1 : pneumatic actuator operating system
- a system for providing air pressure for signal ( 0-20 psi )/ afr for 3-15 psi with panel mounted gauge with gauge saver ( signal pressure )
- a system for providing inlet air to actuator ( 0-100 psi ) / afr 0-85 psi with panel mounted gauge and regulator
- a system for cyclic operation of air actuator / pneumatic cyclic operation with editable holding time ( double solenoid pneu valve )
module-ac2 : electric actuator operating system
- a system for providing 4-20 ma output signal ( feeder for valve calibration )
- 230v ac universal supply
- 24vdc and 110 v acpower supply
- provision to provide 24 v dc / 230 v ac power connection
general information :
test skid :
- horizontal mounting of valves with stem in a vertical orientation- valve mounting position as piped in most situation + ease of loading and unloading of valves.
- most suitable design for valves with as well as without actuator assembly
- suitable for face sealing of flanged end and socket end/ screwed end valves.
- robust, safe and operator friendly machine
- the rated capacity of test skid is the maximum reaction force the skid is designed for. ( please refer model chart for selection )
- the 2 pillar frame is designed for better space for visual inspection and loading.
- the common sealing plates with o-rings for face sealing of certain range of valve sizes and pressure class.
hydraulic clamping
- hydraulic auto force control clamping system to avoid excessive clamping force over valve body.
- provision of inching type button to increase the clamp force
- display of clamp force on hmi/ scada screen.
- safety interlock to keep the valve in clamped position while it is under test pressure
- provision for local soft clamp , clamp force inching and de-clamp push button
- high precision, reliable pressure transmitter for feedback of oil pressure
- various interlocks for enhanced safety of operator and equipment
auxiliary functions :
- hydraulic intensifier system with controls for smooth rise of pressure and avoiding over shooting of pressure beyond predefined overshooting pressure limits.
- valve center height support vertical movement
- valve center height support horizontal movement
- auto isolation of prefill line ( optional )
- auto decompression ( optional )
instrument control panel :
- hydro shell test with high pressure water to suit the different pressure class of the valve under test
- our machines have been classified as 160 bar, 250 bar, 400 bar and 650 bar maximum rated pressure
- low pressure prefilling pump arrangement for prefilling of valve before test
- water tank with level controller and drain valve.
- water filtration and recirculation system
- manual air and pressure relieving valves
- high pressure water generation and control system
- air seat pressurization system and components for 7 bar
- pressure transducers for feedback and digital display
lp air seat leak test :
- bubble jar arrangement for visualization of seat leak
- visual seat leak arrangement is available
- digital bubble counter available as an option
plc control panel :
- electric control panel with reputed components such as mcb, smps, relays, contactors, signal conditioners, isolators etc
- cooling fan, tube lights, additional plug sockets , filters
- standard enclosure
- plc hardware components
- plc will control the operational sequence and display the status of operations on hmi
- will control the clamping force with integration of hydraulics and pressure sensors
- standard recipes on hmi for ease of operator
- display of test results on hmi
- editable stabilization and holding time
daq system ( optional )
- a normal pc or ipc ( optional ) for maintaining the test reports
- reports can be saved in an excel format / pdf format
- customized test reports with company logo and pattern can be designed and incorporated.
- scada licence software with hardware lock
- designing of scada screens and programming for operators interface.
- reports can be saved and printed as per the requirement and can be transferred to another pc by lan or by mail.
- test results in graphical and analytical mode
- ms acess / my sql database ( optional )
- odbc compatible database format required in case of integration with sap system ( optional )