Steam traps Balanced pressure
8
Pressure/temperature limits (ISO 6552)
Body design conditions
PN25
PMA Maximum allowable pressure
25 bar g @ 120 °C
Steam saturation curve
TMA Maximum allowable temperature
242 °C @ 20 bar g
Minimum allowable temperature
-10 °C
PMO Maximum operating pressure
21 bar g @ 217 °C
Pressure bar g
TMO Maximum operating temperature
242 °C @ 20 bar g
The product must not be used in this region. The product should not be used in this region or beyond its operating range as damage to the internals may occur.
Minimum operating temperature 0 °C Designed for a maximum cold hydraulic test pressure of 38 bar g
Materials
1
7
2
5
8 9
5.2.31
4 3
6
8.2 50
No.
Part
Material
1 2 3 4 5 6 7 8
Cover
Steel
1.0460 (C22.8)
Capsule
Stainless steel
Valve seat
Stainless steel
Strainer screen
Stainless steel
Cover gasket
Nickel reinforced exfoliated graphite
Body
Steel
1.0460 (C22.8)
Cover bolts
Steel M8 x 25 mm
BS 1506 - 621 A B7M
Valve seat gasket
Stainless steel
9
Spacer plate
Stainless steel
10
Spring
Stainless steel
TI-P124-08 CMGT Issue 3
Page 2 of 4
BPM21L Steel Balanced Pressure Thermostatic Steam Trap
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