KSB ECOLINE FYC, Operating Manual

Page: 63 / 100

4 Valve Description
63 of 100
4.6.2.5 Materials
Class 800 Class 1500/2500, straight pattern Class 1500/2500,
Y-pattern
901
160
411
950
351
515
100
160
950
351
515
100
1
160
950
351
515
100
1
①
Seal-welded
Table 70: Parts list
Part No.
Description Class Material
A 105
Trim 8
A 182 F11
Trim 5 A 182 F22
Trim 5 A 182 F304
Trim 2 A 182 F316
Trim 10 A 182 F91
Trim 5
100 Body A 105 A 182 F11 A 182 F22 A 182 F304 A 182 F316 A 182 F91
160 Cover A 105 A 182 F11 A 182 F22 A 182 F304 A 182 F316 A 182 F91
351 Check disc 800 A 182 F6a A 182 F6a + STL6 A 182 F6a + STL6 A 182 F304 A 182 F316
1500/2500 A 276-410/
A 276-410+ST6 A 276-410/
A 276-410+ST6 A 276-410/
A 276-410+ST6 A 276-304/
A 276-304+ST6 A 276-316/
A 276-316+ST6 A 276-410/
A 276-410+ST6
411 Joint ring 800 304 + graphite 304 + graphite 304 + graphite 304 + graphite 316 + graphite
515 Seat ring A 105 (integral)/
A 105+ST6 A 182 F11
(integral)/
A 182 F11+ST6 A 182 F22
(integral)/
A 182 F22+ST6 A 182 F304
(integral)/
A 182 F304+ST6 A 182 F316
(integral)/
A 182 F316+ST6 A 182 F91
(integral)/
A 182 F91+ST6
901 Bolt 800 A 193 B7 A 193 B16 A 193 B16 A 193 B8 A 193 B8M
950 Spring SS304 SS304 SS304 SS304 SS316 Inconel X-750
4.6.2.6 Function
The main components of the lift check valves are the body (100), the cover (160) and
the check disc (351).
Seat/disc interface
The integral seating surfaces in the body (100) are hard-faced. The check disc (351) is
spring-loaded.
Bonnet/cover seal
On Class 800 valves, the cover (160) is bolted to the body (100). The joint is sealed by
a joint ring (411). On Class 1500 and Class 2500 valves, the cover (160) is screwed into
the body (100) and the joint is seal-welded.