Filtration suited to the application is recommended upstream of the regulator. Should further assistance or information be required in relation to installation of any Pressure Tech regulator please contact the office, giving reference to the regulators part number and/or serial number.
4. Special Conditions for Safe Use The LW-TS414 series are non-venting type regulators, therefore the outlet pressure shall be reduced by venting downstream of the regulator whilst simultaneously turning the adjusting mechanism anti-clockwise.
Any uncertainty should be clarified with Pressure Tech before working on the regulator. Pressure Tech Ltd recommends the use of Krytox GPL 205 as a lubricant (or equivalent) for O-rings and the Adjusting Screw during servicing. Prior to commencing service, please ensure that:...
6.1. Servicing the LW-TS414 *NOTE: Fig 1 should be used as a reference for the following set of instructions 6.1.1. Accessing the Main Valve Assembly 1 Stage Please be aware that the first stage let down pressure will require re-setting after service. To access the Main Valve Assembly (MVA): With the flats of the regulator body (17) secured in a vice*, use a 13mm open ended spanner to remove the dome nut (22).
*Note: The first stage will now require pressure setting before the regulator can be used (*Ref. 6.1.3). 6.1.2. Accessing the Main Valve Assembly 2 Stage To access the Main Valve Assembly (MVA): With the flats of the regulator body (17) secured in a vice*, use a 13mm open ended spanner to loosen/remove the lock nut (10).
Following re-assembly of the regulator, pressure tests should be made to both the inlet and outlet side of the regulator, to ensure there is no internal or external leakage across the regulator. To ensure that the main valve assembly has been correctly and effectively installed it may be required to perform the appropriate seat leak test as per ANSI/FCI 70-3.
6.1.4. Adjusting the Set Point Note: It is not recommended (or necessary) to remove the Hand Wheel during service as this will affect the set point of the regulator. Should it be required to adjust the set point please follow the instructions below: Secure the regulator firmly in a vice* and install correct fittings to the regulator inlet port and inter-stage port (relief port).
*Max Inlet Pressure determined by seat material and Cv of regulator. 8. Warranty Statement Pressure Tech Ltd guarantee all products correspond with their specification at the time of delivery and, with exception to wear and tear, wilful damage, negligence, and abnormal working conditions, will be free from defects for a period of 12 months from date of delivery.
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