Samson 44-2, Mounting And Operating Instructions

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EB 2623-1 EN 13
Design and principle of operation
30
4
116
2
2.4
2.1
125
112
83
57
90
70…78
95
56
2.6
58
p
1
p
2
35
17
134
130
112
126
83
125
116
237
12
90
57
130
28
Type 44-9 SSV
30
2
2.1
28
12
116
83
237
112
130
27
126
125
2.6
35
134
Type 44-2 (DN 15 to 25)
Body with screwed ends
2 Plug with plug seal
2.1 Balancing piston
2.4 Plug spring
2.6 Guide nipple
4 Coupling nut
12 Diaphragm rupture indicator
17 O-rings
27 Plug nipple
28
Screw plug for the inspection
bore
30 Valve body
35 Seat
56 Set point adjuster
57 Diaphragm plate nut
58 Lock nut
70…78 Set point spring(s)
83
Diaphragm stem
90 Diaphragm plate
95 Spring plate
112 Actuator housing
116 Control line
125 Operating diaphragm
126 Backup diaphragm
130 Housing screws
134 Seal
237 Distance ring
Type 44-3 (DN 32 to 50)
Version with flanged valve body
Fig. 3: Functional diagram of Type 44-2 Pressure Reducing Valve as well as Type 44-3 and Type 44-
9 Safety Pressure Reducing Valves (SSV)