The Yarway 3482-R and 3484-R 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.
Cast Iron Valves
Flanged 3482 Angled
250 P.S.I.
Yarway Valves - Cast Steel
Yarway 3486-R Angle Blowdown and Yarway 3488-R Straightway Blowdown Valves
The Yarway 3486-R and 3488-R 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.
Cast Steel Valves
Flanged 3486R Angled
300-400 P.S.I.
Repairs kits for Yarway Cast Iron Valves, Cast Steel Valves & Repair Parts
For Cast Steel Valves
Includes: Upper/Lower Glands, Packing Set, Springs, Studs, Nuts, Stop Screw, Gasket, Stem and Ball Bearing
For Cast Iron Valves
Includes: Upper/Lower Glands, Packing Set, Springs, Studs, Nuts, Stop Screw, and Gasket
Separate Parts for both Iron & Steel Valves
Yoke Ball Bearings, Stem, Stem Nut, Upper Gland, Lower Gland, Plunger, Packing, Yoke Springs, Studs & Nuts, Stop Screw & Alemite Fitting, Handwheel, Handgrip

**Items to be returned must be approved by Power Plus International, and may be subjected to a restocking fee**