^ Triangle Pump Components Inc. Durabla Style Valves

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Durabla V7H (Low NPSH)
The V7H Unit is most effective in low NPSH applications yet it operates efficiently in pumps running up to 600 rpm and at pressures up to 6500 psi. The light weight metal valve disc gives exceptional service life; is faster opening; and due to it's "point contact" with the sleeve, is nonbinding, eliminating delayed opening or closing. This is imperative in high-speed pumps. Power consumption is kept to a minimum due to the low sliding friction and inertia of the disc. The V7H has a blind tapped deep seat eliminating leakage around the stud. It is available in pump ports sizes from 1-1/2" to 6" diameter.

Durabla MODEL V7F
The V7F incorporates all of the features of the V7H noted above and is designed to accommodate the higher volumes found in some pumping systems. The taller profile provides good lift and spill area while incorporating a guard that allows for a smoother flow. Its heavier spring provides prompt closure and it is available with an optional Delrin Disc (V7FD) instead of the formed metal disk.

Durabla MODEL V7
The V7 Pump Valve Unit is popularly used on steam pump applications. Seats are furnished either threaded for screw fit, or tapered for press fit or rough as cast for machining by the user. The light weight formed valve disc opens completely on initial stroke. It operates quickly and freely. The V7 is available in a range of sizes to fit pump ports from 1-1/2" diameter to 7-3/4" diameter, and for operations to 800 psi and up to 200 strokes per minute.