Emerson Fisher D4 Manual de Instruções descarregar pdf (Página 20)

Instruction Manual

D103042X012

D4 Valve

November 2013

20

Figure 6. Fisher D4 Belleville Spring Procedure

BELLEVILLE SPRINGS REASONABLY TIGHT

TO SEAT THE PACKING

BELLEVILLE SPRINGS FINGER TIGHT, THEN TIGHTEN

1/2TURN(3FLATSONTHERETAINER)

BONNET DESIGN FOR VALVES (2006 AND NEWER) WITH SERIAL NUMBERS LESS THAN 18679262

BONNET DESIGN FOR VALVES (BEFORE 2006) WITH SERIAL NUMBERS LESS THAN 18679262

BELLEVILLE SPRINGS REASONABLY TIGHT

TO SEAT THE PACKING

BELLEVILLE SPRINGS FINGER TIGHT, THEN TIGHTEN

1/2TURN(3FLATSONTHERETAINER)

NOTE: RECOMMENDED SPARE PARTS, INCLUDING PACKING KITS, ARE THE SAME FOR BOTH BONNET DESIGNS.

NOTE: FOR SERIAL NUMBERS GREATER THAN 18679262, SEE THE STANDARD SECTION OF THIS INSTRUCTION MANUAL.

PACKING RETAINER

LOCK RING

(KEY 22)

PACKING RETAINER

LOCK RING

(KEY 22)

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