MHV Made Parts
| Replacement Hinge Bars | Hinge Bar Bores | Replacement Main Block for Stokes 412H11 |
Replacement Hinge Bars
MHV manufactures replacement hinge-bars (Stokes), slide-pins (Kinney), and spacers for mechanical pumps, in a range of sizes. Standard-sized parts are available, as well as sizes to compensate for ground piston-slide tangs and oversized hinge bar bores. MHV's hinge bars for Stokes pumps are made from 4140 chrome-moly steel, heat treated to 28-32 Rc hardness. MHV's slide pins for Kinney pumps are made from cast iron, as are the OEM parts.
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Hinge Bar Bores
When the hinge bar bore in your rotary piston pump becomes scored, MHV can line-bore the block to restore the proper surface finish (63 rms, or better). Taper is held to .001" or less. Also, MHV's special fixturing eliminates chatter and keeps the bore in the factory location. New hinge bars (Stokes) or slide-pins (Kinney) are supplied to fit the new larger bore.
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Replacement Main Block for Stokes 412H11
MHV manufactures replacement main blocks for Stokes 412H11 pumps. In corrosive processes, the main block eventually is so corroded that it needs replacement. Also, after many rebuilds, hinge bar bores may be so large they can no longer be rebored to restore proper finish. Brass core hole plugs are used, not steel, for better corrosion resistance. The water passages are tested hydrostatically, at 40 psi.
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