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Types C471, C477 and C486

Figure 7.

Type C477 Assemblies

APPLY LUBRICANT

(1)

L = MULTI-PURPOSE PTFE LUBRICANT

1. Lubricants must be selected such that they meet the temperature requirements.

SECTION A - A

STEM

SECTION B - B

GLAND

SECTION C

TORQUE:

50 TO 75 IN-LBS /

5.6 TO 8.5 N•m

TORQUE:

50 TO 75 IN-LBS /

5.6 TO 8.5 N•m

TORQUE:

90 TO 100 IN-LBS /

10 TO 11 N•m

15D

15C

15K

15B

15A

15J

15S

15R

15E

15P

15H

15L

15M

15E

15G

15F

Содержание C471

Страница 1: ...he system should be shut down immediately Introduction Scope of the Manual This manual covers instructions for the Types C471 C477 and C486 internal valves Description The valves are typically used on the inlets and outlets of bobtail and transport trucks and on large stationary storage tanks They can also be installed in line Designed for propane butane or Anhydrous Ammonia NH3 at ambient tempera...

Страница 2: ...130 GPM 227 302 and 492 L min 3 in DN 80 Sizes 120 230 320 and 380 GPM 454 870 1211 and 1438 L min Maximum Allowable Inlet Pressure 1 400 psig 27 6 bar WOG Temperature Capabilities 1 2 20 to 150 F 29 to 66 C Approximate Weights 2 In DN 50 Sizes Type C471 11 lbs 5 0 kg Type C477 9 lbs 4 1 kg 3 In DN 80 Sizes Type C471 21 lbs 10 kg Type C477 16 lbs 7 3 kg Type C486 20 lbs 9 1 kg Construction Materia...

Страница 3: ...nstalled in either a half or full coupling Excess flow spring closing flow rates vary in half and full couplings refer to the Specification section CAUTION Excess flow valve closing flow rates are not the same for half and full couplings Verify the coupling for the desired excess flow rate Do not install the valve in any piping tending to restrict the valve inlet because this may prevent the exces...

Страница 4: ...lower valve body to shear off in an accident leaving the valve seat in the tank The break off section is designed for container installations and will probably not provide shear protection if the valve is installed in a pipeline A hydrostatic relief valve does not need to be installed adjacent to the valve since the internal valve relieves excessive line pressure into the tank MODIFIED CL300 ASME ...

Страница 5: ...3T012 The operating linkage must allow the operating lever to move from the fully closed position to within 2 of the fully open position The linkage should not apply strong force to the lever past the fully open position or the valve could be damaged Warranty Note The use of non Fisher actuators will void internal valve warranty and may result in leakage of the gland packing caused by premature we...

Страница 6: ...em that are integral to the design must be included in the DCE certification The DCE certification must consider any specifications of the original component manufacturer In the case of downstream ruptures in hose or piping a variety of operating conditions routinely encountered during an unloading operation restrict the rate of flow through the integral excess flow valve and make such a valve uns...

Страница 7: ...sive wear in the internal valve If excessive volume is in the downstream system a longer time is required to equalize the pressures tank and downstream before the pump can be engaged To determine if the valve pilot seat is opening install a gauge downstream of the valve operate the valve actuator if pressure does not build up to the tank pressure the valve pilot seat is not open This test should b...

Страница 8: ...wear or dirt scale or debris embedded in the disc requires that the internal valve be removed from service and repaired Repair most often requires the replacement of valve discs To check for leakage a Close the internal valve and exhaust downstream pressure Close the first valve downstream from the internal valve and note any pressure buildup using a pressure gauge between the closed valve and the...

Страница 9: ... 1B8480 T11555 T11545 1H9416 MULTI PURPOSE PTFE LUBRICANT A A CAM PROFILE UP BACK VIEW WITHOUT BOLT AND WASHER Figure 6 Stub Shaft Orientation 58 59 55 17 55 SCREW TYPE HARDWARE STUD TYPE HARDWARE 45 HOLE B ORIENTATION NE TO SW GLAND WING GLAND WING T11559 LEVER CAM PROFILE POINTED LEFT DRILLED PIN HOLE MUST BE 45 TO CL OF CAM C TORQUE 90 TO 100 IN LBS 10 TO 11 N m TORQUE 90 TO 100 IN LBS 10 TO 11...

Страница 10: ...stalled Then correctly orient the cam to the stub shaft Incorrect orientation will result in either a Not being able to open the internal valve or b Only being able to partially open the internal valve which will cause the valve s excess flow feature to close prematurely Refer to Figure 6 Looking at the end of the stub shaft C that the lever or actuator attaches to a The cam profile on the opposit...

Страница 11: ...lways replace the sealing washer key 23 with a new sealing washer and follow recommended torque values for hex nut key 13 8 a Reassemble in reverse order Tighten the screws key 9 using 20 in lbs 2 2 N m torque to install the disc retainer key 8 properly CAUTION Failure to properly center the disc retainer to the disc holder may result in improper function of the valve Important During replacement ...

Страница 12: ...0012 57 Stud Long 2 required ERAA02623A0 58 Stud Short ERAA02652A0 59 Nut 1A309338992 60 Thread Cap 2 required not shown ERAA02691A0 7 Main Disc 2 in DN 50 Nitrile NBR T1154003202 PTFE T1214006242 Fluorocarbon FKM T12533T0012 Neoprene CR T12879T0012 Kalrez T12877T0012 Ethylene Propylene EPDM T13474T0012 3 in DN 80 Neoprene CR T12914T0012 Nitrile NBR T1177403032 PTFE T1217306242 Fluorocarbon FKM T1...

Страница 13: ...temperature requirements SECTION A A STEM SECTION B B GLAND SECTION C TORQUE 50 TO 75 IN LBS 5 6 TO 8 5 N m TORQUE 50 TO 75 IN LBS 5 6 TO 8 5 N m TORQUE 90 TO 100 IN LBS 10 TO 11 N m L L L L L A B C B A 1 14 57 55 59 60 19 57 55 59 60 6 36 4 3 33 5 2 13 34 35 9 8 7 18 59 55 58 10 23 12 11 16 15D 15C 15K 15B 15A 15J 15S 15R 15E 15P 22 15H 15L 15M 15E 15G 15F 13 ...

Страница 14: ...hey meet the temperature requirements SECTION A A STEM SECTION B B GLAND SECTION C TORQUE 50 TO 75 IN LBS 5 6 TO 8 5 N m TORQUE 50 TO 75 IN LBS 5 6 TO 8 5 N m TORQUE 90 TO 100 IN LBS 10 TO 11 N m L L L A A C B B L L 1 14 60 59 55 57 19 60 59 55 57 6 5 2 36 4 3 34 35 9 8 7 18 59 55 58 23 12 11 10 13 13 33 15P 22 15S 15J 15A 15R 15B 15C 15D 16 15E 15K 15G 15H 15E 15M 15L 15F ...

Страница 15: ...ts PARTS NOT SHOWN 20 AND 21 SECTION A A SEE DETAIL C SECTION B B SECTION C TORQUE 90 to 100 IN LBS 10 to 11 N m TORQUE 90 TO 100 IN LBS 10 TO 11 N m TORQUE 50 TO 75 IN LBS 5 6 TO 8 5 N m TORQUE 50 TO 75 IN LBS 5 6 TO 8 5 N m L A A B B L L 15R 15C 15J 15S 15A 15B 15D 15E 16 10 11 23 12 59 55 58 18 4 8 7 36 9 3 6 13 13 19 55 57 59 2 5 33 34 35 1 14 22 15P 15L 15K 15M 15E 15H 15G 15F ...

Страница 16: ...isher is a mark owned by Fisher Controls International LLC a business of Emerson Automation Solutions The contents of this publication are presented for information purposes only and while effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicability All sal...

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