PROCEED HPA 3 Manual de Instruções descarregar pdf (Página 13)

Instruction Manual

D101634X012

HP and HPA Valves

October 2014

Table 9. Valve Stem Connection Torque and Drill Size for Pin Hole

VALVE SIZE,

NPS

VALVE STEM

DIAMETER

DESIGN

VALVE STEM

CONNECTION TORQUE

(MINIMUM-MAXIMUM)

DRILL SIZE

FOR PIN

HP HPA mm Inches NSm LbfSft Inches

1 1

12.7 1/2 HPS, HPAS 81 - 115 60 - 85 1/8

19.1 3/4 HPS, HPAS 237 - 339 175 - 250 3/16

2 2, 3

12.7 1/2 HPD, HPAD, HPS, HPAS

(1)

,HPT,HPAT 81 - 115 60 - 85 1/8

19.1 3/4

HPS, HPAS

(1)

237 - 339 175 - 250 3/16

HPD, HPAD, HPT, HPAT 237 - 339 175 - 250 1/8

25.4 1 HPS, HPAS

(1)

420 - 481 310 - 355 1/4

3 4

12.7 1/2 HPD, HPS, HPT, HPAD, HPAT 81 - 115 60 - 85 1/8

19.1 3/4 HPD, HPS, HPT, HPAD, HPAT 237 - 339 175 - 250 3/16

25.4 1 HPD, HPS, HPT, HPAD, HPAT 420 - 481 310 - 355 1/4

4 6

19.1 3/4 HPD, HPT, HPAD, HPAT 237 - 339 175 - 250 3/16

25.4 1 HPD, HPT, HPAD, HPAT 420 - 481 310 - 355 1/4

6 8

19.1 3/4 HPD, HPT, HPAD, HPAT 237 - 339 175 - 250 3/16

25.4 1 HPD, HPT, HPAD, HPAT 420 - 481 310 - 355 1/4

31.8 1-1/4 HPD, HPT, HPAD, HPAT 827 - 908 610 - 670 1/4

1. HPAS available in NPS2 only.

CAUTION

Failure to comply with good bonnet-to-body bolting practices and the torque values shown in t able 8 may result in damage

to the valve. Cheater bars or slug wrenches should not be used for this procedure.

Hot torquing is not recommended.

Note

Stud(s) and nut(s) should be installed such that the manufacturer's trademark and material grade marking is visible, allowing easy

comparison to the materials selected and documented in the Emerson/Fisher serial card provided with this product.

WARNING

Personal injury or damage to equipment could occur if improper stud and nut materials or parts are used. Do not operate or

assemble this product with stud(s) and nut(s) that are not approved by Emerson/Fisher engineering and/or listed on the

serial card provided with this product. Use of unapproved materials and parts could lead to stresses exceeding the design

or code limits intended for this particular service. Install studs with the material grade and manufacturer's identification

mark visible. Contact your Emerson Process Management representative immediately if a discrepancy between actual

parts and approved parts is suspected.

14. Lubricate the stud threads and the faces of the hex nuts (key 14) with anti-seize lubricant (not necessary if new

factory prelubricated hex nuts are used). Replace the hex nuts and tighten them finger-tight. Stroke the valve

severaltimestocenterthetrim.Torquethenutsinacrisscrosspatterntonomorethan1/4ofthenominaltorque

value specified in table 8.

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 55 56

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