Flowserve Vogt Forged Steel Gate - Manual (Page 48)

Flow Control
Vogt Valves
48 Forged Steel Gate, Globe and Check Valves FCD VVENIM2000-02
Figure 12 – Globe Valve (single grease fitting)
Lubrication
Points
Figure 13 – Globe Valve Staked Disc Figure 11 - Globe Valve Stacked Disc
Center punch disc nut
to lock disc nut to disc
Displaced metal
in notch
5.25 Engineering Information
Check Valve Cracking/Opening Pressures
(Vogt Valve Series 701, 15701, 573, 583, 593, etc.)
Size, NPS Pressure (psi)
1/2 0.61
3/4 0.61
1 0.52
11/4 0.57
11/2 0.57
2 0.58
Maximum Packing Gland Bolting Torque (ft-lb)
Size,
NPS
Class 150, 300,
600 & 800
Conventional Port
Class 600
& 800
Full Port Class 1500
Class 1500
Full Port
1/2 1.8 1.8 4.2 4.2
3/4 1.8 3.7 4.2 7.5
1 3.7 4.0 7.5 13.9
11/4 4.0 — 13.9 13.9
11/2 4.0 7.5 13.9 15.9
2 7.5 8.5 15.9 —
21/2 8.5 — — —
3 8.5 — — —
4 12.0 — — —