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311595C

Instructions-Parts

Pneumatic Back Pressure 
Regulator

Controls fluid pressure and flow in circulation systems.

300 psi (2.1 MPa, 21 bar) Maximum Inlet Fluid Pressure

100 psi (0.7 MPa, 7 bar) Maximum Inlet Air Pressure

250 psi (1.72 MPa, 17.2 bar) Maximum Regulated Fluid Pressure

20 gpm (75 lpm) Maximum Flow Rate

Part No. 288117, 1-1/4 npt(f) inlet and outlet
Part No. 288262, 2 in. sanitary inlet and outlet
Part No. 288311, 1-1/2 npt(f) inlet and outlet
Part No. 15J498, Pneumatic Conversion Kit (see page 8)

Canadian Registration Number (CRN): Ontario - OC11377.5

Important Safety Instructions

Read all warnings and instructions in this manual. 
Save these instructions.

ti8553a

Summary of Contents for 311595C

Page 1: ...72 MPa 17 2 bar Maximum Regulated Fluid Pressure 20 gpm 75 lpm Maximum Flow Rate Part No 288117 1 1 4 npt f inlet and outlet Part No 288262 2 in sanitary inlet and outlet Part No 288311 1 1 2 npt f in...

Page 2: ...as sharp edges moving parts and hot surfaces Do not kink or over bend hoses or use hoses to pull equipment Keep children and animals away from work area Comply with all applicable safety regulations P...

Page 3: ...es in the system Operation Adjust the air pressure regulator D to the desired back pressure The air fluid ratio is approximately 2 5 1 100 psi inlet air pressure 250 psi outlet fluid pressure Do not e...

Page 4: ...m 6 See FIG 3 Install the diaphragm assembly 7 Install the adapter 110 and screws 111 Torque the screws to 120 130 in lb 13 6 14 7 N m oppo sitely and in sequence three times 8 Apply thread lubricant...

Page 5: ...replace parts as needed 5 To reassemble the piston apply thread sealant and torque the screw 211 to 75 80 in lb 8 5 9 0 N m Lubricate the rod 210 and reinstall in the housing 201 6 Install the new dia...

Page 6: ...iption Qty 2 288116 HOUSING diaphragm see page 7 1 5 107078 O RING used on 288262 and 288311 2 6 187004 FITTING 1 7 8 un 2a x 2 in sani tary used on 288262 2 187150 FITTING 1 7 8 un 2a x 1 1 2 npt f u...

Page 7: ...0 211 216 Ref No Part No Description Qty 201 15U747 HOUSING diaphragm 1 202 15J461 WASHER support 1 203 15U746 COVER diaphragm 1 204 180979 DIAPHRAGM 1 209 120730 SCREW machine hex wash hd 12 210 15H7...

Page 8: ...m assembly 7 Install the adapter 110 and screws 111 Torque the screws to 120 130 in lb 13 6 14 7 N m oppo sitely and in sequence three times 8 Apply thread lubricant to the adapter 110 Screw the diaph...

Page 9: ...75 in 197 mm 7 25 in 184 mm 10 71 in 272 mm Maximum fluid inlet pressure 300 psi 2 1 MPa 21 bar Maximum air inlet pressure 100 psi 0 7 MPa 7 bar Regulated pressure range 25 250 psi 017 1 72 MPa 1 7 1...

Page 10: ...se any defect in material or workmanship repairs will be made at a reasonable charge which charges may include the costs of parts labor and transportation THIS WARRANTY IS EXCLUSIVE AND IS IN LIEU OF...

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