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BS(H)10/15 Back-Pressure Regulator User Manual

Read the complete manual before installing and using the regulator.

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Summary of Contents for BSH 10 Series

Page 1: ...BS H 10 15 Back Pressure Regulator User Manual Read the complete manual before installing and using the regulator ...

Page 2: ...edia should be free of excessive moisture to prevent icing at high flow Always wear the appropriate protective clothing including safety glasses gloves etc if required Follow the applicable safety and maintenance procedures Obey specific local regulations Do not exceed the maximum inlet and outlet pressure rating of the product or its accessories Operate within the temperature limits and any other...

Page 3: ...ance 7 Required Tools for Maintenance 7 Points of Attention Before Removal from the System 8 Removal from the System 8 Assembly Reference Data 9 Disassembly 15 Points of Attention Before Reassembly 15 Reassembly 16 BS H 10 Series Diaphragm Sensing 16 BS H 10 Series Piston Sensing 16 BS H 15 Series Diaphragm Sensing 17 BS H 15 Series Piston Sensing Control Range 5 17 BS H 15 Series Piston Sensing C...

Page 4: ...tandard Features Bolted construction Stainless steel as standard Fully serviceable Diaphragm or piston sensing Balanced poppet Additional Options The regulator is available with the following options Anti tamper Oxygen Service For more information about hazards and risks of oxygen enriched systems see the Swagelok Oxygen System Safety technical report MS 06 13 Cleaning and packaging to ensure comp...

Page 5: ... that the regulator its connections and any accessories are undamaged Verify that the regulator and any accessories are suitable for the system operating pressure and temperature and have suitable connections At the time of delivery any gauge ports may be plugged with blind fittings Remove these and connect gauges if desired If inlet outlet fittings are being used assemble them to the regulator pe...

Page 6: ...ncy This phenomenon does not indicate a problem with the regulator Adjusting the Set Pressure The set pressure is the desired upstream pressure of the regulator To set the regulator ensure that the supply pressure is greater than the required set pressure but does not exceed the maximum rating of the regulator The regulator must be able to flow in order to adjust the set pressure 1 Open any downst...

Page 7: ...ning or normal operation Swagelok recommends having maintenance kits readily available on site The need for maintenance kits is particularly important during the commissioning phase of a system installation due to residual assembly debris remaining in the system Such debris can cause a seat leak in the regulator resulting in components needing to be replaced Required Tools for Maintenance Smooth j...

Page 8: ...ary safety precautions to ensure a safe workspace and your personal safety CAUTION The product can be hot or cold depending on the environmental temperature and the process media temperature Take the necessary precautions before operating or touching the product Removal from the System 1 Isolate the regulator from all pressure sources by closing all appropriate upstream valves in the system 2 With...

Page 9: ...18 Piston plate O ring B1 B2 C1 C3 19 Piston O ring B1 B2 C1 C3 Lubricate 20 Piston plate C1 C3 21 Piston screw C1 11 15 Lubricate threads 22 Overtravel spring C1 C5 23 Piston backup ring B1 B2 C1 C3 24 Set spring C1 C4 25 Upper spring guide C1 Lubricate central recess 26 Ball C1 Lubricate 27 Spring housing N A 28 Washer E1 29 Cap screw E1 22 30 Lubricate threads 30 Set screw nut D1 31 Adjusting s...

Page 10: ...10 BS H Series Exploded View Fig 1 ...

Page 11: ...11 BS H 10 Series Diaphragm Sensing Section View Fig 2 ...

Page 12: ...12 BS H 10 Series Piston Sensing with Anti Tamper Section View Fig 3 ...

Page 13: ...13 BS H 15 Series Diaphragm Sensing Section View Fig 4 ...

Page 14: ...14 BS H 15 Series Piston Configuration Control Range 5 Fig 5 ...

Page 15: ...w 21 from the piston 17 to release the poppet 8 and overtravel spring 22 4c For a piston sensor with a poppet nut 16 refer to Fig 5 Remove the sensing assembly from the body 5 Remove the piston 17 from the piston plate 20 then remove the poppet nut 16 and washer 15 to release the poppet 8 and O ring 13 5 If present remove the O ring 6 and backup ring 7 from the poppet 8 6 Remove the piston O ring ...

Page 16: ...nd upper spring guide 25 onto the bottom spring guide 14 14 Lightly lubricate the cap screws 29 Fit the spring housing 27 over the spring 24 and secure with the cap screws 29 and washers 28 Torque the cap screws 29 to 30 lbf ft 40 N m 15 Lightly lubricate the adjusting screw 31 then assemble the lock nut 30 on to it 16 Insert the adjusting screw 31 into the spring housing 27 BS H 10 Series Piston ...

Page 17: ...piston plate 20 10 Lightly lubricate the piston O ring 19 then insert the piston 17 into the piston plate 20 11 Insert the sensing assembly into the body 5 The poppet 8 is inserted through the seat 3 and into the body plug 1 12 Follow steps 12 through 16 of the BS H 10 series diaphragm sensing reassembly procedure BS H 15 Series Piston Sensing Control Ranges 6 8 1 Follow steps 1 and 2 of the BS H ...

Page 18: ...r on the outlet port A drop in inlet pressure over time or bubbles in the leak detector indicates a seat leak 5 Repeat the procedure with the highest set pressure suitable for the regulator and system Shell Leak Test 1 Set the regulator to the open position i e ensure the adjusting screw is fully backed off counterclockwise 2 Close the downstream shutoff valve 3 Maintain an inlet pressure of appro...

Page 19: ...ure rises too much when going from a dynamic to a static situation There is too much flow in the dynamic situation A larger regulator or parallel regulator is required Review application flow capacity and contact your local authorized sales and service center The regulator will not relieve at the set point The poppet is sticking Replace the poppet The set point has been accidentally altered Readju...

Page 20: ...backed by The Swagelok Limited Lifetime Warranty For a copy visit swagelok com or contact your authorized Swagelok representative Swagelok Snoop TM Swagelok Company Krytox TM The Chemours Company 2018 Swagelok Company July 2018 RevB MS CRD 0158 ...

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