3-6
EB 2172 EN
Design and principle of operation
Table 3-2:
K
VS
/C
V
coefficients
Type 2436 Valves
G ½
2) 4)
G ¾
2) 4)
G 1
2) 4)
–
K
VS
1)
3.2
4.0
5.0
C
V
1)
4.3
6.8
8.6
DN 15
3)
DN 20
3)
DN 25
3)
DN 32
3)
DN 40
3)
DN 50
3)
K
VS
1)
3.2
4.0
5.0
12.5
16.0
20.0
C
V
1)
4.3
6.8
8.6
4.3
6.8
8.6
1)
Special version with K
VS
0.4, 1 or 2.5/C
V
0.5, 1.2 or 3
2)
Red brass body with screwed ends
3)
Flanged body made of spheroidal graphite iron
4)
Stainless steel body with screwed ends
Table 3-3:
Materials · Material numbers according to DIN EN
Type 2436 Valve
DIN
DIN
4)
/ANSI
5)
Body
Red brass (RG5)
CC499K
Spheroidal graphite
iron
EN-GJS-400-18-LT
1)
Stainless steel
1.4408 CF8M
Seat
Stainless steel 1.4305
1.4408
Plug
Brass, resistant to dezincification, CW617N
(CuZn40Pb) and 1.4104 with PTFE soft seal
2) 3)
Balancing bellows
Stainless steel 1.4571
Valve spring
Stainless steel 1.4310
Type 2430 Control Thermostat
Set point adjuster
PTFE, glass fiber reinforced
Temperature
sensor
Capillary tube
Copper
Thermowell
Copper or stainless steel 1.4310
1)
Flanged body valve (DIN only)
2)
For oils (ASTM I, II, III): FKM soft seal
3)
When K
VS
= 0.4 and 1.0: 1.4305
4)
Female thread (G ½ to G 1) and flanges (DN 15 and 25)
5)
Female thread (½ NPT to 1 NPT)
Summary of Contents for 43-6
Page 16: ...2 4 EB 2172 EN Markings on the device...
Page 26: ...3 10 EB 2172 EN Design and principle of operation...
Page 44: ...8 4 EB 2172 EN Malfunctions...
Page 54: ...11 2 EB 2172 EN Removal...
Page 56: ...12 2 EB 2172 EN Repairs...
Page 58: ...13 2 EB 2172 EN Disposal...
Page 62: ...14 4 EB 2172 EN Certificates...
Page 66: ...15 4 EB 2172 EN Annex...
Page 67: ......