Continuous Blow Down Valve
Intermittent Blow Down Valve
Blow Down Valve - Series 320
- High pressure control valve with multistep trim to limit velocities within the ISA norms
- Seat integral with body eliminating the leakage prone body seat gasket joint
- Sealing area away from the throttling area reduces damage to sealing area
- Seat and plug stellited to provide 40-45 Rc hardness even at high temperatures and excellent wear resistance properties
- Roller burnished spindle, extra long packing area with endless flexible graphite rings ensures zero leakage across gland packing
- Equipped with electrical actuator or handwheel for manual operation
- Boiler blow down
- Injection water control
- Feed water control lines
- Boiler / turbine drains
Size
15-50 NB
Pressure Rating
Class 150-2500
Body Material
Cast carbon steel A216 WCB, WCC
Forged carbon steel A105
Cast alloy steel A217 WC6, WC9
Forged alloy steel A182 F11, F22
Other materials as per specification on request
Trim Material
AISI 420, 431
DIN 1.4122, 1.4922
SAE 51422
Other materials as per specification on request
End connection
Flanged ends (Normally class 150-600)
Butt weld ends (Normally class 900 and above)
Socket weld ends
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