Nibco Check Valve Automatic Stop F869B Manuel d'utilisateur télécharger pdf (Page 8)

NIBCO Technical Services • Phone: 1.888.446.4224 • Fax: 1.888.336.4224

IRON VALVE BOLT TORQUE

Before tightening, make sure all surfaces that the fastener will contact are clean and dry.

The torque tightening table listed below applies to clean, undamaged, well lubricated threaded

fasteners. When tightening, use the sequence chart below. Tighten in two steps.

When tightening, use the sequence chart below. Tighten in two steps.

1. Tighten fastener using about 1/2 the final torque figure.

2. Final tighten using the full torque figure. ASTM A307 steel only.

Fastener Size

7/16 1/2 9/16 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2

Torque in Ft. Lbs.

30 45 66 93 150 202 300 474 659 884 1057

BOLT TIGHTENING SEQUENCE

1 2 3 4 5 6 7 8 9 10 11 12 13 14

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Nibco Check Valve Automatic Stop F869B Manuel d'utilisateur Page 8