Steam traps Balanced pressure
8
Capacities
Differential pressure psi (x 6.9 = kPa)
3 4
7 10 15
29 44 58 73 145
305
1.5
Cold water capacity
4409
2205
Hot water capacity
1102 882 661 441
220
110 88 66 44
22
Differential pressure bar (x 100 = kPa)
Dimensions/weights (approximate) in mm (inches) and kg (lbs)
B
Size
A
B
C
D Weight
50.5 (1.99) 61.0 (2.40) 68.0 (2.68) 75.0 (2.95)
8.5 (0.33) 12.5 (12.5)
10 0.39)
0.34 (0.75)
¼"
½"
45 (1.77)
A
14 (0.55)
"
0.48 (1.06)
¾"
14.0 (0.55)
1"
C
8.2 23
D
Safety information, installation and maintenance For full details see the Installation and Maintenance Instructions (IM-P125-07) supplied with the product. Installation note The MST21 is designed for installation with the capsule in a vertical line with the inlet at the top and the outlet at the bottom. This will ensure it is self-draining. If fitted in a horizontal line the trap should be proceded by a short drop-leg. Caution The body/cover gasket contains a thin stainless steel support ring, which may cause physical injury if it is not handled and disposed of carefully. Disposal This product is recyclable. No ecological hazard is anticipated with the disposal of this product, providing due care is taken.
How to order Example : 1 off Spirax Sarco ¼" MST21 balanced pressure thermostatic steam trap having a 'STD' fill capsule for operation approximately at 10 °C (18 °F) below steam saturation temperature. The connections are to be screwed NPT.
TI-P125-08 CMGT Issue 11
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MST21 Stainless Steel Balanced Pressure Thermostatic Steam Trap
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