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Pressure Tech THE SS-414 Series Operating And Service Manual

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THE SS-414 SERIES
Operating and Service Manual
Series includes all variants of SS-414
Issue A
March 2020
1

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Summary of Contents for Pressure Tech THE SS-414 Series

  • Page 1 THE SS-414 SERIES Operating and Service Manual Series includes all variants of SS-414 Issue A March 2020...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. Description ..........................3 2. Installation ..........................3 3. Operation ..........................5 4. Special Conditions for Safe Use ..................... 6 5. Hazardous Location Usage ..................... 6 6. Servicing and Maintenance ....................6 6.1. Servicing the SS-414G ..................... 7 6.1.1.

  • Page 3: Description

    1. Description The SS-414 is a ‘medium flow’ piston sensed pressure reducing regulator, which incorporates a balanced main valve to provide stable control under varying inlet pressures. The regulator has the option of a PEEK or PCTFE seat for gas service and Tecasint or ceramic for hydraulic service.
  • Page 4 The Inlet and Outlet ports are clearly marked. Select the correct size and type of connection fittings for these ports which are indicated in the regulators part number. The connection type options that are available on this regulator are: British Standard Pipe (BSPP) ‘B’, National Pipe Thread (NPT) ‘N’...

  • Page 5: Operation

    3. Operation The SS-414 series of regulator are fitted with a stainless-steel locking cap as standard. It is recommended that for the pressure adjustment the locking cap is removed, and a 17mm spanner (or adjustable) is used to control and set the outlet pressure. The locking cap should then be secured to the adjusting screw and bonnet by tightening the respective grub screws to prevent further adjustments.

  • Page 6: Special Conditions For Safe Use

    4. Special Conditions for Safe Use The SS-414 series are pressure regulators and should not be used as an isolation valve. When adjusting Non-Venting (NV) option, the outlet pressure shall be reduced by venting downstream of the regulator whilst simultaneously turning the adjusting mechanism anti- clockwise.

  • Page 7: Servicing The Ss-414G

    We recommend that the filter should be removed and the vent port should be piped off to safe location or drain and should not point towards the operator during service work, if using a hazardous media through the regulator. 6.1. Servicing the SS-414G *Note: Fig 1 should be used as a reference for the following set of instructions 6.1.1.
  • Page 8 xii. Apply two drops of Loctite thread lock 638 (or equivalent) on the M6 thread within the Seat Nut (17) xiii. Replace the BS-610 ‘O’ ring (12) and place into the Seat Nut (17). xiv. Screw the Seat Nut (17) on to the Main Valve (18) and tighten both parts together using a 10mm socket (on the main valve hex) and a 7mm socket (on the seat nut hex).

  • Page 9: Accessing The Sensor Assembly (Nv)

    6.1.2. Accessing the Sensor Assembly (NV) The loading mechanism and sensor assembly for the SS-414 can be accessed from the top of the regulator. Ensure the spring is de-compressed by rotating the Adjusting Screw fully anti- clockwise and follow the instructions below: To access the Sensor Assembly: Remove the securing M3 Grub Screw (3) from the regulator Body (29).

  • Page 10: Accessing The Top Works Assembly

    6.1.3. Accessing the Top Works Assembly The loading mechanism for the SS-414 can be accessed from the top of the regulator. Ensure the spring is de-compressed by rotating the Adjusting Screw fully anti-clockwise and follow the instructions below: To access the Top Works Assembly: Remove the securing M3 Grub Screw (3) from the regulator Body (29).
  • Page 11 SUBSEA BONNET - NO REFERENCE PT-C-127-004 SUBSEA ADJUSTING SCREW PT-SS-414-N-06A-SS-NV SUBSEA BODY - N PORTING OR-BS028 O' RING STD PT-305-MF-011 SUB SEA BOTTOM NUT PT-C-253 32mm SENSOR HOLDER PT-C-252 SENSOR 32MM OR-0290-20 O' RING STD SPR-R40X89-002 LOAD SPRING © Copyright of Pressure Tech Ltd...

  • Page 12: Technical Data

    Gas: Bubble tight 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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