Design and Installation
06-236115-001
4-31
October 2014
4-3.12
Installation of Pressure Operated Control Head, P/N 82-878751-000
1. Remove the protection cap from the cylinder actuation port (see Figure 4-15).
Figure 4-15. Pressure Operated Control Head
2. Install a pressure operated control head with flexible actuation hose attached to the cylin-
der actuation port.
WARNING
When attaching the Lever/Pressure operated control head to the valve, the
swivel nut must be tightened to a toque of 55ft·lb. Failure to tighten the swivel
nut may result in leakage during actuation.
WARNING
Ensure that the pilot line is non-pressurized and the actuating pins are in the
retracted (SET) position. Failure to follow this procedure will cause the HFC-
227ea cylinder to discharge accidentally when the control head is installed on
the cylinder valve.
1.250-18
UNEF-3B
SWIVEL NUT
PISTON
1/8 in.-27 NPT
PRESSURE INLET
SET
OPERATED
2.19 in.
(55.6 mm)
1.50 in. HEX
(38 mm)
1.00" HEX
(25.4 mm)
Содержание ECS
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