Modco Industries LLC, 10650 FM 1484 Conroe, TX 77301 / Phone: 936-539-9222 / FAX: 936-622-6818
B. MARKING CAP AND SUB FOR METAL TO METAL CLOSED POSITION:
AFTER FABRICATION OF CLOSURE, THE FOLLOWING PROCEDURE SHOULD BE USED TO
ESTABLISH METAL TO METAL FULL CLOSED POSITION OF CAP AND SUB:
1. PROCEDURE TO FOLLOW – REMOVE O-RING FROM SUB AND USING
ACTUATOR DEVICE MAKE-UP CAP ONTO SUB UNTIL METAL TO METAL
SEATING OF CAP AND SUB IS OBTAINED. THIS CAN BE DETERMINED WHEN
THERE IS NO MOVEMENT OF CAP ONTO SUB. THIS CAN BE CHECKED, EITHER
BY VISUALLY CHECKING MOVEMENT OF CAP OR BY PLACING FINGERS
ACROSS CAP AND SUB TO FEEL CAP MOVEMENT. MARK “ARROWS” ON BACK
OF CAP AND SUB TO INDICATE-POINT AT WHICH THREADS ARE FULLY
ENGAGED AND THERE IS METAL TO METAL CONTACT BETWEEN CAP AND
SUB. THESE REFERENCE “ARROWS” CAN BE USED ON ALL FUTURE OPENINGS
AND MAKE-UP CLOSURE.
C. OPERATION:
1. CLOSING – TIGHTEN CAP ONTO SUB USING ACTUATOR DEVICE.
IMPORTANT: DO NOT ATTEMPT TO TIGHTEN CAP UNDER PRESSURE.
AFTER CLOSURE IS COMPLETELY MADE-UP SCREW PRESSURE
WARNING DEVICE STEM INTO BODY ON SUB AND TIGHTEN.
2. OPENING – UNSCREW PRESSURE WARNING DEVICE STEM FROM BODY ON
SUB AND SCREW INTO RETAINER ON CAP.
WARNING: DO NOT UNSCREW PRESSURE WARNING DEVICE BODY FROM SUB
WHILE PRESSURIZED. INJURY MAY RESULT. USING ACTUATOR
DEVICE, LOOSEN CAP AND UNSCREW FROM SUB, PULL BACK ON
TROLLEY AND SWING TO SIDE OF SUB.
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