Tri-Plex Plunger Pumps
RK, JK Series - 228
These 3-piston volumetric pumps are ideal for use in cleaning units and industrial systems. The pump body and cover are constructed from durable die-cast aluminum alloy, with a rear cover that includes an oil drain outlet and oil sight glass. Additionally, a cap with a dipstick allows for easy monitoring of the oil level on the body pump. The pistons are driven by a crank-connecting rod, with the pump shaft made of pressed high-strength steel and equipped with oversized friction bearings. The connecting rods are crafted from bronze or aluminum, and the one-piece ceramic pistons provide high efficiency and reliability. The pump head is made of brass or nickel-plated brass, and the valve cups are constructed from stainless steel. A double gasket sealing system ensures secure operation, while the intake and delivery valves feature plugs for easy maintenance.
| Thumbnail | Model | Max GPM | Max PSI | Max RPM | Stroke mm | Shaft Version | Shaft Type | Shaft Size | Power EBHP | Weight (lbs) |
|---|---|---|---|---|---|---|---|---|---|---|
 | JK2115HN | 5.55 | 2200 | 1450 | 9.0 | N, Natural | Hollow | 24mm | 0.7 | 22 |
| JK1520HN | 4 | 2900 | 1450 | 8.4 | N, Natural | Hallow | 24 mm | 6.5 | 21.5 |
| JK1320HN | 3.5 | 2900 | 1450 | 7.6 | N, Natural | Hollow | 24 mm | 5.5 | 20 |
| JK1120HN | 2.9 | 2900 | 1450 | N Version | Solid | 24 mm | 5.5 | 22 | |
 | RKV55G40HD-F24 | 5.5 | 4000 | 3400 | 9.8 | D, Direct Gas, Direct Gas Shaft, N, Natural | Hollow, Solid | 1" | 15 | 21 |
| RKV5G40HD-F24 | 5 | 4000 | 3400 | 8.6 | D, Direct Gas, Direct Gas Shaft | Hollow | 1" | 13.7 | 21 |
| RKV45G40HD-F24 | 4.5 | 4000 | 3400 | 8 | D, Direct Gas, Direct Gas Shaft, N, Natural | Hollow, Solid | 1" | 12.4 | 21 |
| RKV4G40HD-F24 | 4 | 4000 | 3400 | 7 | D, Direct Gas, Direct Gas Shaft, N, Natural | Hollow, Solid | 1" | 11, 12.4 | 21 |
| RKV4G37D-F24 | 4 | 3700 | 3400 | 7 | D, Direct Gas, Direct Gas Shaft, N, Natural | Hollow, Solid | 1" | 7.5 | 21 |
| RKV45G32D-F24 | 4.5 | 3200 | 3400 | 8 | D, Direct Gas, Direct Gas Shaft, N, Natural | Hollow, Solid | 1" | 10 | 21 |
| RKV35G40HD-F24 | 3.5 | 4000 | 3400 | 6.2 | D, Direct Gas, Direct Gas Shaft, N, Natural | Hollow, Solid | 1" | 10 | 21 |
| RKV35G30AD-F24 | 3.5 | 3000 | 3400 | 6.2 | D, Direct Gas, Direct Gas Shaft | Hollow | 1" | 7.5 | 21 |
 | RKA7G20HE-F17 | 7.1 | 2000 | 1750 | 14.6 | E, Electric, Electric Shaft, N, Natural | Hollow, Solid | 1-1/8" | 10 | 21 |
| RKA55G13E-F17 | 5.5 | 2000 | 1750 | 13.8 | E, Electric, Electric Shaft, N, Natural | Hollow, Solid | 1-1/8" | 7.5 | 21 |
| RKA4.8G30E-F17 | 4.8 | 3000 | 1750 | 12 | E, Electric, Electric Shaft, N, Natural | Hollow, Solid | 1-1/8" | 10 | 21 |
| RKA4G20E-F17 | 4 | 2000 | 1750 | 12 | E, Electric, Electric Shaft | Hollow | 1-1/8" | 5.5 | 21 |
| RKA4G30HE-F17 | 4 | 3000 | 1750 | 12 | E, Electric, Electric Shaft, N, Natural | Hollow, Solid | 1-1/8" | 8.2 | 21 |
| RKA4G30E-F17 | 4 | 3000 | 1750 | 12 | E, Electric, Electric Shaft, N, Natural | Hollow, Solid | 1-1/8" | 8.2 | 21 |
| RKA35G40HE-F17 | 3.5 | 4000 | 1750 | 10.8 | E, Electric, Electric Shaft, N, Natural | Hollow, Solid | 1-1/8" | 9.6 | 21 |
| RKA35G30E-F17 | 3.5 | 3000 | 1750 | 10.8 | E, Electric, Electric Shaft | Hollow | 1-1/8" | 6.8 | 21 |
 | RKW1514N | 4 | 2000 | 1750 | 13.8 | Internal Gear Box, J, Internal Gear | Solid | 20mm | 5.5 | |
 | RKA4G40HJ-F22 | 4 | 4000 | 1750 | 12 | Internal Gear Box, J, Internal Gear | 25mm | 11 | 20 | |
| RKA7G20HN | 7.1 | 2000 | 1750 | 14.6 | N, Natural, Neutral Shaft | Solid | 24mm | 10 | 20 |
| RKA6.5G20HN | 6.6 | 2000 | 1750 | 13.8 | N, Natural, Neutral Shaft | Solid | 24mm | 9 | 20 |
| RKA5.5G30HN | 5.5 | 3000 | 1750 | 13.8 | N, Natural, Neutral Shaft | Solid | 24mm | 11.3 | 20 |
| RKA45G40HN | 4.5 | 4000 | 1750 | 13.8 | N, Natural, Neutral Shaft | Solid | 24mm | 12.5 | 20 |
| RKA4G40HNL | 4 | 4000 | 1750 | 12 | N, Natural, Neutral Shaft | Solid | 24mm | 11 | 20 |
| RKA4G35NL-2 | 4 | 3500 | 1750 | 12 | N, Natural, Neutral Shaft | Solid | 24mm | 9.6 | 20 |
| RKA4G40HN | 4 | 4000 | 1750 | 12 | N, Natural, Neutral Shaft | Solid | 24mm | 11 | 20 |
| RKA4G30N | 4 | 3000 | 1750 | 12 | N, Natural, Neutral Shaft | Solid | 24mm | 8.2 | 19 |
| RKA4G30AN | 4 | 3000 | 1750 | 12 | N, Natural, Neutral Shaft | Solid | 24mm | 8.2 | 19 |
| RKA3.5G40HN | 3.5 | 4000 | 1750 | 10.8 | N, Natural, Neutral Shaft | Solid | 24mm | 9.6 | 20 |
| RKA3.5G30HN | 3.5 | 3000 | 1750 | 10.6 | N, Natural, Neutral Shaft | Solid | 24mm | 7.5 | 20 |
| RK18.28HNL | 4.75 | 4000 | 1450 | 14.6 | N, Natural, Neutral Shaft | Solid | 24mm | 13 | 20 |
| RK18.28HN | 4.75 | 4000 | 1450 | 14.6 | N, Natural, Neutral Shaft | Solid | 24mm | 13 | 20 |
| RK15.28HN | 3.96 | 4000 | 1450 | 14.6 | N, Natural, Neutral Shaft | Solid | 24mm | 11 | 20 |