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Model 525 1" Slow Opening Blow Off Valve


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Class 300
ANSI B 16.34
650 psi Working Steam Pressure @ 500 º F
750 psi @ 100 º F
100% Pressure Tested
Maximum Boiler Blow-Off Pressure 490 psi per Sec 1 Table A-361
Threaded Ends
High Temp. Powder Coating for Corrosion Resistance
CRN OCO7135.2, 24, 25, 26
CRN OEO2171.7, 79, 70, 78, 7AY, 7T, 7N

The United Brass slow opening boiler blow off valve has been designed for the rugged service of boiler treatment and scale. The cast steel knife gate valve conforms to Class 300 of ANSI B16.34 and features a stainless steel seat and disc hardened to Rockwell 60. ASME Boiler and Pressure Vessel Code Section 1 PG-42.1.12 and Power Piping Code ASME B 31.1 Table 126.1 reference steel valves to ANSI B16.34. The sliding disc provided a "cleaning" action that keeps the seating area clear of scale and debris.



     

Specifications  

A

5.50 in

B - Total Length

12.30 in

C - Length

9.50 in

Quantity per Carton

1

Valve Type

Gate

Pressure Class

300 WSP

End Connection

Threaded

Application

Water/Steam

Stem Type

No

FM Approved

No

Mea Approved

No

MSS Compliant

No

Bonnet Type

No

Canadian Registration

Yes

Pressing Machine Part

No