Steam traps Sealed
8
Materials
1
6
5
11
4
USM21 fitted to a PC10HP connector
2
10 9
3 8 7
No.
Part
Material
1 2 3 4 5 6 7 8 9
Body
Stainless steel
ASTM A351 CF8M
Cover
Stainless steel
AISI 316L
Seat
Stainless steel
AISI 316L
Stem
Stainless steel
AISI 410
Bimetal
Nickel alloy
G. Rau H46
Lock-nuts
Stainless steel
AISI 304L
Body/seat gasket
Stainless steel
AISI 316L
Screen
Stainless steel
AISI 304L
8.8 23
Inner gasket
Stainless steel / Graphite filler
Spirally wound AISI 304 strip
10
Outer gasket
Stainless steel / Graphite filler
Spirally wound AISI 304 strip
11
Connector screws
Carbon steel
ASTM A193 B7
TI-P625-04 CMGT Issue 4
Page 3 of 5
USM21 Sealed Bimetallic Steam Trap for use with Pipeline Connectors
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