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The seatless blow-off valve is a sliding plunger type, opened and closed by means of a hand wheel 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 help 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 area is provided in the 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.
Yarway Blow-Off Valve, 1-1/2 in Nominal, NPS Connection, Angled, 935 psi, 600 lb Pressure Class, 6-1/2 in Inlet to Outlet Length, 2, Steel Body, Graphite/PTFE/Stainless Steel Packing, 22-7/8 in L, Additional Information: Handwheel Operator, Carbon Steel Gland, Nitralloy Plunger, Steel Yoke
| Additional Information | : | Handwheel Operator, Carbon Steel Gland, Nitralloy Plunger, Steel Yoke |
| Body Material | : | Steel |
| Configuration | : | Angled |
| Connection Type | : | NPS |
| Dimensions | : | 22-7/8 in L |
| Inlet to Outlet Length | : | 6-1/2 in |
| Nominal Size | : | 1-1/2 in |
| Number of Ports/Ways | : | 2 |
| Packing Material | : | Graphite/PTFE/Stainless Steel |
| Pressure Class | : | 600 lb |
| Pressure Rating | : | 935 psi |
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