8.2.5 Threaded socket NPT (code 31)
R
L
t
SW2
H
H1
Connection type threaded socket NPT (code 31)
1)
, investment casting material (code 37)
MG
DN
NPS
H
H1
L
n
R
SW 2
t
25
15
1/2"
28.3
14.8
85.0
6.0
NPT 1/2
27.0
14.0
20
3/4"
33.3
17.3
85.0
6.0
NPT 3/4
32.0
14.0
25
1"
42.3
21.8
110.0
6.0
NPT 1
41.0
17.0
40
32
1¼"
51.3
26.3
120.0
8.0
NPT 1¼
50.0
17.0
40
1½"
56.3
28.8
140.0
8.0
NPT 1½
55.0
17.0
Connection type threaded socket NPT (code 31)
1)
, SG iron material (code 90)
2)
MG
DN
NPS
H
H1
L
n
R
SW 2
t
25
15
1/2"
32.7
16.7
85.0
6
NPT 1/2
32
13.6
20
3/4"
42.0
21.5
85.0
6
NPT 3/4
41
14.1
25
1"
46.7
23.7
110.0
6
NPT 1
46
16.8
40
32
1¼"
56.0
28.5
120.0
6
NPT 1¼
55
17.3
40
1½"
66.0
33.5
140.0
6
NPT 1½
65
17.3
Dimensions in mm
MG = diaphragm size
n = number of flats
1)
Connection type
Code 31: Threaded socket NPT
2)
Valve body material
Code 37: 1.4408, investment casting
Code 90: EN-GJS-400-18-LT (GGG 40.3)
www.gemu-group.com
24 / 71
GEMÜ 639 eSyStep
OPEN / CLOSE (Code AE)
8 Dimensions
