GENERAL FEATURES: • The valve is manufactured in 316L stainless steel. • Manufactured in three pieces to facilitate replacement on plants which requires frequent maintenance. • Threaded ends as per ISO 7/1 specifications; socket welding; butt welding. • Working temperature: from -20°C to +150°C • Working pressure: see diagram. • Fluid range: air, water, gas, petroleum and petrochemical products, aggressive media. • ISO 5211 flange connection. • The manual version (with lever) doesn't have the ISO 5211 flange connection and its therefore not possible to mount on it any kind of actuators. ON REQUEST: • Threaded: NPT • Seals made of: PTFE glass filled / PTFE with carbon graphite • For other applications, please contact our sales department.
CERTIFICATIONS: • ATEX version in conformity with directive 2014/34/EU on request. • ATEX certificate on request.
DIMENSIONS
SIZE
A
B
□C
D
E
F
øG
øH
øL
□M
øN
Q
P
R
X
Y
DN [mm]
[inch]
DN 10
3/8"
70
35
6
3/8”
49,5
41,5
46
36
6
40
10
17,8
9,7
18
55
110
DN 15
1/2"
70
35
6
1/2”
49,5
41,5
46
36
6
40
15
22
9,7
22,5
55
110
DN 20
3/4"
80
40
6
3/4”
53
45
46
36
6
45
20
27,3
12,7
28
60
110
DN 25
1"
90
45
9
1”
64,5
51,5
65
50
7
60
25
42,8
12,7
34,5
70
160
DN 32
1" 1/4
100
50
9
1" 1/4
69,5
56,5
65
50
7
70
32
42,8
12,7
43,5
80
160
DN 40
1" 1/2
114
57
14
1" 1/2
89
76
65
50
7
80
40
48,9
12,7
49,5
95
190
DN 50
2"
136
68
14
2”
95
82
65
50
7
90
50
61,4
15,8
61,5
100
190
MATERIALS
1
Shaft
316L S.S.
1.4401
UNI X2CrNiMo 17 12
2
Nut
303 S.S.
3
Ring nut
304L S.S. (303 S.S.)
4*
Shaft seal
P.T.F.E.
5*
Shaft o-ring
FKM
6*
Shaft seal
P.T.F.E.
7*
Ball seal
P.T.F.E.
8
Flange
316L S.S.
1.4401
UNI X2CrNiMo 17 12
9
Ball
316L S.S.
1.4401
UNI X2CrNiMo 17 12
10
Screws
303 S.S.
11
Body
316L S.S.
1.4401
UNI X2CrNiMo 17 12
12
Nut
303 S.S.
* Components of spare part kit KGBV55...
Pressure/temperature diagram
Flow/pressure loss diagram and Kv nominal coefficient
Kv is the coefficient, expressed in m3/h (with water at 15°C) causing a pressure loss of 1 bar.
BREAKAWAY TORQUES Nm
SIZE
DN 10 3/8"
DN 15 1/2"
DN 20 3/4"
DN 25 1"
DN 32 1"1/4
DN 40 1 "1/2
DN 50 2"
PN 25 bar
20
29
40
PN 40 bar
10
14
PN 63 bar
7
8
Torque can vary depending on temperature and type of fluid; a safety factor of 1.4 must be applied. Torque can drop on high frequency of operations. The actuator/valve sizing, indicated on the following pages, are based for valves to be used with liquids or gaseous fluids, clean, and for medium temperatures. For further information, or different uses please contact our sales department.
