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OCV Control Valves 127-5 Operating Manual

Pressure reducing & surge control valve
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Model #: 127-5
Size: "
Serial #:
Sales Order :

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Summary of Contents for OCV Control Valves 127-5

  • Page 1 Model #: 127-5 Size: " Serial #: Sales Order :...

  • Page 5: Installation

    Installation, Operating, Maintenance Instructions Model 65/765 basic control valve 型 GENERAL DESCRIPTION In cases where the line fluid is unusually dirty, or is otherwise unsuitable for operating the valve, an The OCV Series 65 is a hydraulically operated, independent operating pressure source may be diaphragm-actuated valve, full port valve.

  • Page 6: Maintenance

    Model 65/765 5. Allow sufficient room around the valve for ease Problems with the main valve can be classed in three of adjustment and maintenance service. basic categories: 6. After the lines are filled with liquid, bleed all air 1. VALVE FAILS TO OPEN from the diaphragm chamber.
  • Page 7 Model 65/765 12. Making sure the dowel pin holes are in the proper location, place the new diaphragm over the studs and press down until it is flat against the body and spool. 13. Replace the diaphragm plate and the diaphragm plate capscrews.
  • Page 8 Model 65/765 3. Slide the seat retainer off the lower end of the 14. Install the new seat ring in the body, making sure stem. that the capscrew holes line up. 4. Remove the seat disc from its groove in the spool. 15.
  • Page 9 Model 65/765 TABLE 1 FLANGE BOLTING REQUIREMENTS – CLASS 150 FLANGES VALVE NO. OF BOLT SIZE RECOMMENDED RECOMMENDED SIZE (DN) BOLTS TORQUE (FT-LB) TORQUE (N-M) 1 ¼” (32) 1/2-13 X 2.50” LONG 1 ½” (40) 1/2-13 X 2.50” LONG 2” (50) 1/2-13 X 2.50”...
  • Page 10 Model 65/765 TABLE 3 BONNET BOLTING TORQUE SPECIFICATIONS NEW-STYLE FULL PORT VALVES (SERIES 65) VALVE NO. OF STUD REC. VALVE NO. OF SCREW REC. SIZE (DN) STUDS SIZE TORQUE SIZE (DN) SCREWS SIZE TORQUE FT-LB (N-M) FT-LB (N-M) 1 ¼” (32) 3/8-16 31 (42) 8”...
  • Page 11 Model 65/765 TABLE 4 DIAPHRAGM PLATE CAPSCREW TORQUE SPECIFICATIONS NEW-STYLE FULL PORT VALVES (SERIES 65) VALVE NO. OF SCREW REC. VALVE NO. OF SCREW REC. SIZE (DN) SCREWS SIZE TORQUE SIZE (DN) SCREWS SIZE TORQUE FT-LB (N-M) FT-LB (N-M) 1 ¼” (32) 3/8-24 N 21.5 (29) 8”...

  • Page 12: General Description

    Installation, Operating, Maintenance Instructions Pressure Reducing SEALED SPRING Pilot CHAMBER SENSE For Petroleum Service Model 1340P GENERAL DESCRIPTION FUNCTIONAL DESCRIPTION The Model 1340P Pressure Reducing Pilot is a When installed on OCV 127 or 114 control valve normally open, direct-acting, spring-loaded, exterior pilot systems, the 1340p controls the pressure diaphragm-type control pilot with remote or local in the diaphragm chamber of the main valve, hence the...

  • Page 13: Installation And Adjustment

    Model 1340p INSTALLATION AND ADJUSTMENT REPAIR PROCEDURES The 1340p is normally installed in the main valve Refer to the 1340P assembly drawing for parts control piping between the ejector and the downstream identification. It is recommended to replace all rubber body tap.
  • Page 14 Model 1340p 17. Remove any foreign material or light scratches from the stem with a fine grade of emery cloth. A badly scored stem should be replaced. 18. Replace o’ring (21). 19. Lubricate the o’ring and stem liberally with Vaseline® or similar lubricant. 20.
  • Page 15 Model 1340p 7400 East 42 Place / Tulsa, Oklahoma 74145 USA / 918-627-1942 / 888-628-8258 / Fax 918-622-8916 e-mail: sales@controlvalves.com / website: www.controlvalves.com...
  • Page 16 20-80psi spring range which is typically seen in aircraft loading. FUNCTIONAL DESCRIPTION The 2470 is installed on a 127-5 or 114 pressure reducing control valve external pilot systems as a surge pilot sensing outlet pressure. The pilot provides...
  • Page 17 Model 2470 INSTALLATION AND ADJUSTMENT REPAIR PROCEDURES For 114 models with downstream surge control, the Refer to the 2470 assembly drawing for parts 2470 is installed in the main valve control piping identification. It is recommended to replace all rubber between the upstream body tap and the top bonnet tap.
  • Page 18 Model 2470 16. Inspect stem (4) and o’ring (21) carefully. 17. Remove any foreign material or light scratches from the stem with a fine grade of emery cloth. A badly scored stem should be replaced. 18. Replace o’ring (21) 19. Lubricate the o’ring and stem liberally with Vaseline®...
  • Page 19 Model 2470 7400 East 42 Place / Tulsa, Oklahoma 74145 USA / 918-627-1942 / 888-628-8258 / Fax 918-622-8916 e-mail: sales@controlvalves.com / website: www.controlvalves.com...
  • Page 21 p erformance. touch. • BALL VALVE 141-4 Gontrol Valves DESCRIPTION The Model 141-4 Ball Valve is a ¼-turn shutoff device used for isolating the pilot system from the main valve. They are extremely useful for performing routine maintenance and troubleshooting. Ball valves are standard on water service valves;...
  • Page 22 Orifice bushings are stainless steel. STAINLESS The Model 126 Ejector is shown on OCV Valve Schematics as: EXAMPLE: Shown here on a MODEL 127-3 Pressure Reducing Valve p erformance. touch. • EJECTOR 128 Gontrol Valves DESCRIPTION MODEL 126 EJECTOR The Model 126 ejector is a simple tee fitting with a fixed orifice in its inlet port.
  • Page 23 The Model 141-3 Flow Control Valve is an adjustable restriction device, installed in the control circuit tubing. The flow control valve differs from a standard needle valve in that it includes an internal check valve. Thus it allows free flow in one direction (through the check) and restricted flow in the other direction (through the needle).

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