Order Data; Order Data Gemü 674 - GEM 674 Installation, Operating And Maintenance Instructions

Diaphragm size
25
40
50
65
80
100
125
150
200
250
300
All pressures are gauge pressures. Operating pressure values were determined with static operating pressure applied on one side of a closed
valve. Sealing at the valve seat and atmospheric sealing is ensured for the given values.
Information on operating pressures applied on both sides and for high purity media on request.
Kv values determined acc. to IEC 534 standard. inlet pressure 6 bar. ∆p 1 bar. valve body material cast iron EN-GJL-250 and flanges
EN 1092 length EN 558-1 series 1 and soft elastomer diaphragm.
7

Order data

7.1 Order data GEMÜ 674
Body confi guration
2/2 way
Connection
Threaded sockets DIN ISO 228
Valve body material
EN-GJL-250, GG 25 (cast iron)
Order example
Type
Nominal size
Body configuration (code)
Connection (code)
Valve body material (code)
Diaphragm material (code)
Control function (code)
Other valve body materials, linings and diaphragm materials upon request
DN EPDM [bar]
15
20 10
25
32
10
40
50 10
65 10
80 10
100 10
125 10
150 8
200 5
250 4
300 4
Code
D
Code
1
Code
8
674 15
674
15
21 / 36
Operating pressure
PTFE [bar]
6.0
6.0
6.0
6.0
6.0
6.0
6.0
5.0
3.0
2.5
2.5
Diaphragm material
NBR, Perbunan
CR, Neoprene
EPDM
Control function
Manually operated
D 1
D
1
Kv Value
[m 3 /h]
7
14
20
36
40
80
100
160
238
376
496
910
1445
2550
Code
Code
8 24 0
8
24
0
674, 675_us
2
8
24
0