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YARWAY BLOW-OFF VALVES
Fisher Control Valve
BLOW-OFF VALVES manufacturer
SEATLESS, HARDSEAT AND UNIT TANDEM
Designed for blow-off service in boiler systems with pressures of 3206 psig
FEATURES
&©|8226;&©|160;Designed&©|160;according&©|160;ASME&©|160;section&©|160;1,&©|160;ASME&©|160;B31.1,&©|160;ASME&©|160;B16.34.
&©|8226;&©|160;For&©|160;boiler&©|160;systems&©|160;up&©|160;to&©|160;3206&©|160;psig.
&©|8226;&©|160;Rugged&©|160;construction&©|160;to&©|160;withstand&©|160;high&©|160;pressure&©|160;and&©|160;high&©|160;velocities.
&©|8226;&©|160;Excellent&©|160;resistance&©|160;to&©|160;cleaning&©|160;acids&©|160;and&©|160;wear&©|160;caused&©|160;by&©|160;precipitated&©|160;solids.
Seatless valves
&©|8226;&©|160;No&©|160;Seat
-&©|160;will&©|160;not&©|160;score&©|160;or&©|160;plug&©|160;with&©|160;dirt
-&©|160;will not&©|160;leak
&©|8226;&©|160;Live-loaded&©|160;packing
-&©|160;will&©|160;not&©|160;leak&©|160;after&©|160;packing
&©|8226;&©|160;Slow&©|160;opening
-will not rapidly drain boiler drum
Unit tandem valves
&©|8226;&©|160;Combination&©|160;of&©|160;hardseat&©|160;and&©|160;seatless&©|160;valves&©|160;in&©|160;a&©|160;single&©|160;body
-&©|160;eliminates pipe&©|160;joints
-&©|160;reduces potential&©|160;leaks
-&©|160;fits&©|160;into&©|160;a&©|160;confined&©|160;***ce
Hardseat valves
&©|8226;&©|160;Stellite seat&©|160;faces
-&©|160;resists&©|160;wear
provides&©|160;long&©|160;service&©|160;life
GENERAL APPLICATION of china low noise displacement pumps
Blow-off&©|160;service&©|160;in&©|160;boiler&©|160;systems&©|160;to&©|160;remove&©|160;dirt,&©|160;sediment&©|160;and&©|160;scale&©|160;as&©|160;well&©|160;as&©|160;maintain&©|160;boiler level&©|160;surge.
Size&©|160;range:&©|160;NPS&©|160;1,&©|160;1&©|188;,&©|160;1&©|189;,&©|160;2,&©|160;2&©|189;
TECHNICAL DATA
[DN&©|160;25,&©|160;32,&©|160;40,&©|160;50,&©|160;65]
Pressure&©|160;Rating:&©|160;Up to 3206&©|160;psi&©|160;Connection:&©|160;Flanged, Socketweld, Buttweld&©|160;Materials:&©|160;Cast&©|160;Iron,&©|160;Carbon&©|160;Steel
GENERAL DESCRIPTION of BLOW-OFF VALVES
Basic requirements&©|160;for&©|160;the&©|160;design&©|160;and&©|160;use&©|160;of blow-off&©|160;va |
| Company: |
Tian Yi Hong Tu (Tianjin) Technology Co. , Ltd.
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| Contact: |
Mr. Tao Lu |
| Address: |
building B, Niupeng Zhongchuang, no. 24 Dongting Road, Hexi district, Tianjin |
| Postcode: |
300202 |
| Tel: |
02285190885 |
| Fax: |
022-85190885 |
| E-mail: |
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