GENERAL FEATURES: • The valve is manufactured in 316L stainless steel. • Manufactured in three pieces to facilitate replacement on plants which requires frequent maintenance. • Ends: female threads as per EN 10226-1 Rp (Ex ISO 7/1); 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. • Head of the valve as per ISO 5211 specifications. • The manual version (with lever) doesn't have the ISO 5211 top work 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
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
DN 15
1/2"
70
35
6
1/2”
49,5
41,5
46
36
6
40
15
22
9,7
22,5
DN 20
3/4"
80
40
6
3/4”
53
45
46
36
6
45
20
27,3
12,7
28
DN 25
1"
90
45
9
1”
64,5
51,5
65
50
7
60
25
42,8
12,7
34,5
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
DN 40
1" 1/2
114
57
14
1" 1/2
89
76
65
50
7
80
40
48,9
12,7
49,5
DN 50
2"
136
68
14
2”
95
82
65
50
7
90
50
61,4
15,8
61,5
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.
