Emerson Fisher EZH Series - Page 27

27
Types EZH and EZHSO
Europe, Middle East and Africa Only
DN
Screw
(Key 21 - Figures 16, 17, 18, 19)
Screw
(Key 24 - Figures 16, 18)
Screw
(Key 6 - Figures 16, 17, 18, 19)
Screw
(Key 50 - Figure 22) (Key 1 - Figure 23)
Metric Spanner Torque Nm In. Spanner Torque Nm In. Spanner Torque Nm In. Spanner Torque Nm
25 M12 19 70 1/2”-13x7/8”
3/4” 110
9/16”-12x2” 13/16”
75
9/16”-12x1”3/4 13/16”
110
50 M16 24 190 1/2”-13x1” 1/2”-13x1”1/4 3/4” 1/2”-13x1”1/2 3/4”
80 M22 32 350 3/4”-10x2” 1”1/8” 150 5/8”-11x1”1/2 15/16” 100 5/8”-11x1”3/4 15/16” 175
100 M27 41 400 3/4”-10x3” 1”1/8 200 3/4”-10X2”1/4 1”1/8 260
150
M27 41 665 M20 30 315 1"-8X3" Allen 19 534 1"-8X2"3/4 1"1/2 510
200
DN
Screw
(Key 16 - Figures 16, 17, 18, 19)
Screw
(Key 33 - Figures 16, 7)
Travel indicator tting
(Key 141 - Figures 16, 17, 18, 19)
Screw
(Key 51 - Figure 22)
Metric Spanner Torque Nm Metric Spanner Torque Nm Metric Spanner Torque Nm Metric Spanner Torque Nm
25 M5 Allen 4 6.5 M4 Allen 3 4
M16
19 (M12)
30 M8 13 15
50
M6 Allen 5 7
M5 Allen 4 6.5
80 M6
Allen 5 10
100 M8 Allen 6 12 M6 20
150
M8 Allen 6 25 M6 Allen 5 10 M16 20 30 M8 13 15
200
DN
Screw
(Keys 68, 74 - Figures 17, 19)
Screw
(Key 77 - Figures 17, 19)
Screw
(Key 154 - Figures, 19)
Metric Spanner Torque Nm Metric Spanner Torque Nm Metric Spanner Torque Nm
25 M4 Allen 3 4
50 M6 Allen 5 7
80 M8 Allen 6 12
100 M5 Allen 4 4 M16 20 135 M4 Allen 3 4
150
M5 Allen 4 4 M20 30 315
200
DN
Stem nut
(Key 151 - Figures 18, 19)
Hex nut
(Key 152 - Figures 18, 19)
Stem nut
(Key 155 - Figures 18)
Metric Spanner Torque Nm Metric Spanner Torque Nm Metric Spanner Torque Nm
25
M10 17
43
M8 special 19 41
50
M12 19
54
80
61
81
100 68
150
M16 24 61 M16 24 65
200
Table 10. Torque Specications
R118
SYMPTOM CAUSE ACTION
If outlet pressure is stable
Observe the evolution of the inlet pressure
If inlet pressure decreases External leak Locate and repair leak or contact after-sales
If inlet pressure is stable The regulator is tightshut
Increase the set point until tripping occurs
(without exceeding the outlet limits)
If the slam-shut valve plug will not close Operation faulty
Control the release relay
Control the slam-shut valve plug or contact after-sales
If the slam-shut valve plug closes Operation correct Bleed off outlet side
Close the vent and observe the evolution of the outlet pressure
If the outlet pressure increases Valve plug internal leak
Control the release relay
Control the valve plug and slam-shut orice or contact after-sales
If the outlet pressure is stable The valve plug is tightshut
If the outlet pressure increases Internal leak Close pilot feed
If the outlet pressure stabilises Pilot leak Control the pilot valve plug or contact after-sales
If the outlet pressure increases Regulator internal leak Control valve plug and orice or contact after-sales
Table 9. Troubleshooting for Types EZH and EZHSO Regulators
A108