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Torque specification for socket-head screws
(continued)
Table 9-2:
Nominal pipe size
ANSI Class
Max Torque (ft-lb)
10" - 12"
600
17
WARNING!
OVER-TORQUING SCREWS HAZARD
The only function of the socket-head screws that secure the cylinder head to the cylinder is to
provide a mechanical joint between components during assembly or disassembly.
Do not Over torque the screws during assembly, see
.
9.4.2
Cylinder reassembly (2" - 12" valves with socket head
screws in circular pattern on cylinder head) B style
NOTICE
Lightly coat the O-rings with a high grade lubricant to ensure proper seal and assist in the
reassembly procedure. All O-rings should be inspected for nicks, cuts, distortion or other signs
of wear and be replaced as required.
Procedure
1.
Install check valve assembly, if removed.
2.
Return the O-rings to the cylinder head.
3.
Reinstall the O-ring (seat ring) and sealing ring (clockwise). Tighten locking set
screw (8).
4.
Reinstall the piston O-rings or Spring energized seals.
5.
Insert the piston in the cylinder followed by the spring.
6.
Assemble the cylinder and cylinder head, compressing the spring.
CAUTION!
CYLINDER RELEASE HAZARD
The cylinder assembly is now spring loaded and should be handled with extreme care.
Failure to comply may cause serious injury or damage to the equipment.
7.
Insert and tighten the cylinder socket head screws maintaining sufficient force to
hold the cylinder and the cylinder head together.
Planned maintenance
92
Daniel Models 762, 763, 765, 766 and 767 Control Valves
Содержание Daniel 762
Страница 8: ......
Страница 12: ...Plan 2 Daniel Models 762 763 765 766 and 767 Control Valves ...
Страница 47: ...Models 762 763 765 766 and 767 Control Valves NPS 16 Figure 1 6 Introduction User manual 37 ...
Страница 52: ...Introduction 42 Daniel Models 762 763 765 766 and 767 Control Valves ...
Страница 72: ...Prepare the control valve for use 62 Daniel Models 762 763 765 766 and 767 Control Valves ...
Страница 74: ...Install 64 Daniel Models 762 763 765 766 and 767 Control Valves ...
Страница 82: ...Installation prerequisites 72 Daniel Models 762 763 765 766 and 767 Control Valves ...
Страница 88: ...Testing the product 78 Daniel Models 762 763 765 766 and 767 Control Valves ...
Страница 89: ...Part III Operate Operate User manual 79 ...
Страница 90: ...Operate 80 Daniel Models 762 763 765 766 and 767 Control Valves ...
Страница 96: ...Maintain 86 Daniel Models 762 763 765 766 and 767 Control Valves ...
Страница 112: ...Decommission 102 Daniel Models 762 763 765 766 and 767 Control Valves ...
Страница 113: ...Decommission User manual 103 ...
Страница 114: ...Decommission 104 Daniel Models 762 763 765 766 and 767 Control Valves ...
Страница 115: ...Decommission User manual 105 ...