Emerson Fisher D4 Manual de Instruções descarregar pdf (Página 22)

Instruction Manual

D103042X012

D4 Valve

November 2013

8. Install the Belleville springs (key 11). The Belleville springs (key 11) should be single stacked with the I.D. of the

inner spring contacting the packing spacer (key 14) and the O.D. of the outer spring contacting the packing retainer

(key 10). The final Belleville spring should be within the 1.26 inch diameter bore of the bonnet.

9. Adjust the packing retainer by hand until it makes contact with the Belleville springs. Do not tighten by hand, simply

install the packing retainer until it makes contact with the Belleville springs. Tighten the packing retainer clockwise

precisely 1.16 turns (7 flats on the retainer) to seat the packing. This should fully compress the Belleville springs as

detected by an increase in torque between 6 and 7 flats.

10. Loosen the packing retainer completely. Adjust the packing retainer by hand until it makes contact with the

Belleville springs. Do not tighten by hand, simply install the packing retainer until it makes contact with the

Belleville springs. Tighten the packing retainer clockwise precisely 1/2 turn (3 flats on the retainer).

11. Lock the packing retainer (key 10) solidly in place by tightening the packing retainer locknut (key 22) using a

spanner wrench or a hammer and punch or chisel.

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Emerson Fisher D4 Manual de Instruções Página 22