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Yarway Blowdown Valves 300lb Cast Steel Slow Opening In Stock

The seatless blow-off valve is a sliding plunger type, opened and closed by means for a handwheel and non-rising stem, and sealed against leakage by packing rings above and below the ports. This valve is provided with heavy coil compression springs under the yoke nuts.

 

Designed to prevent leaking when the valve is open, yoke nuts are screwed down evenly and tightly placing compression on the springs and the packing rings. Ample flow are is provided in hollow plunger; absence of projections or pockets prevents accumulation of scale and sediment that can impede flow and shorten the life of the valve.

 

Annular space in the body permits pressure to surround the plunger, making the valve a fully balanced unit easy to operate at high pressures. For complete protection of the packing, the valve has a long-stroke plunger so that packing is never exposed to the mainstream flow. The gland and plunger have double inlet ports to balance flow pressures.

Item#: Yarway 3486R
Item Name: Yarway 3486R Angle 300 # Blowdown Valve
Manufacturer:
Yarway
Shipping Time: 1-3 Business Day
Specifications For Angle Valves
Model # Part # Size Description Pressure
Rating
Class
# of
Bolt Holes
Pressure Rating
Blow-Off
(max. psig)
Wt, lbs.  
3486R 923615-02 1" Angle 300 lb
Blowdown Valve
300 4 BH 490 38 Add to RFQ
3486R 923615-05 1 1/4" Angle 300 lb
Blowdown Valve
300 4 BH 490 42 Add to RFQ
3486R 958614-02 1 1/2" Angle 300 lb
Blowdown Valve
300 4 BH 490 45 Add to RFQ
3486R 958616-02 2" Angle 300 lb
Blowdown Valve
300 8 BH 490 65 Add to RFQ
3486R 923505-02 2 1/2" Angle 300 lb
Blowdown Valve
300 8 BH 490 90 Add to RFQ
Item#: Yarway 3488R
Item Name: Yarway 3488R Straightway 300 # Blowdown Valve
Manufacturer:
Yarway
Shipping Time: 1-3 Business Day
Specifications For Straightaway Valves
Model # Part # Size Description Pressure
Rating
Class
# of
Bolt Holes
Pressure Rating
Blow-Off
(max. psig)
Wt, lbs.  
3488R 923615-03 1" Straightway 300 lb
Blowdown Valve
300 4BH 490 38 Add to RFQ
3488R 923615-08 1 1/4" Straightway 300 lb
Blowdown Valve
300 4BH 490 42 Add to RFQ
3488R 958614-05 1 1/2" Straightway 300 lb
Blowdown Valve
300 4BH 490 45 Add to RFQ
3488R 958616-05 2" Straightway 300 lb
Blowdown Valve
300 8BH 490 65 Add to RFQ
3488R 923505-05 2 1/2" Straightway 300 lb
Blowdown Valve
300 8BH 490 90 Add to RFQ
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