What Is a 200 Bar Triplex Plunger Pump?
The CHD Series 200 bar triplex plunger pump is a positive displacement pump with a brass manifold, three valve caps and a 24 mm drive shaft. All four models carry a maximum pressure of 200 bar (20 MPa / 2900 psi). Flow rates are 12, 15, 16.7 and 21 L/min at 1450 rpm. Maximum input power ranges from 4.7 kW to 7.9 kW. Water temperature is limited to 65 deg C (149 deg F). Dry weight is 6.8 kg and oil capacity is 0.58 L. The inlet is G 1/2 in and the outlet is G 3/8 in.
HAWK describes the CHD R series as its top of the range 200 bar model, intended for professional high pressure washers, vehicle washing systems and misting systems. HAWK is the brand printed on page 15 of the 2026 catalogue. The supplier confirms that 200 bar is both the continuous working pressure and the peak pressure, so there is no separate higher peak rating. An efficiency curve and a combined pressure and flow duty point are Not published. As of 2026, buyers needing a complete machine can compare the high pressure cleaner range or the Pratissoli KF Series triplex plunger pump.
Structure and Key Components
Two assemblies are visible: a cast brass manifold and a black crankcase with a red filler cap, a round oil sight glass and a 24 mm drive shaft. All four CHD models share the same external appearance, so these four views apply to CHD1220R, CHD1520R, CHD1720R and CHD2120R. No model badge is visible in the photos. No motor, pulley, coupling or base plate is shown.
Brass manifold and valve group
Three valve caps line up across the top of the manifold, with three matching hex plugs below. The catalogue publishes a G 1/2 in inlet and a G 3/8 in outlet, so hose selection starts from those two thread sizes. Plunger diameter, stroke and material are Not published. For downstream parts see steel braided replacement hose and high pressure nozzle sets.
Crankcase and drive shaft
The black crankcase has a rectangular cover held by four bolts, an oil sight glass on the side and the red filler cap on top. All four models are rated at 1450 rpm, which is a pump shaft speed, not a motor nameplate speed. Pulley ratio, belt type, coupling and motor frame size are Not published; see the electric pump motor unit range and the three phase cleaner category.
Performance and Operating Limits
What 200 bar means on this pump
The published maximum pressure is 200 bar (20 MPa / 2900 psi). The supplier confirms that the same 200 bar figure applies to continuous operation and to peak pressure, so the pump is not given a separate higher peak rating. The catalogue does not publish a combined duty point at 200 bar with 21 L/min. Above 200 bar a different machine class is required, such as the 800 bar water blasting machine or the 1000 bar marine water blaster.
1450 rpm and the power figures
Each model runs at 1450 rpm with a 24 mm shaft. Hydraulic power estimated with kW = bar x L/min / 600 gives 4.00, 5.00, 5.57 and 7.00 kW, while the catalogue lists maximum input power of 4.7, 5.7, 6.8 and 7.9 kW. The two columns describe different quantities; no efficiency curve is published. This is a cold water pump limited to 65 deg C (149 deg F), not a hot water washer. It has no motor, switchgear or unloader valve in the supplied form; compare the 250 bar marine cleaning machine for a complete unit.
CHD Series Model Comparison
Four models share 200 bar, 1450 rpm and a 24 mm shaft. They differ in flow rate and in the drive power listed for each flow rate. Part numbers come from the catalogue table.
| Model | Part No. | Flow (L/min) | Max pressure (bar) | Speed (rpm) | Max power (kW) | Shaft (mm) |
|---|---|---|---|---|---|---|
| CHD1220R | 1.905-272.0 | 12 | 200 | 1450 | 4.7 | 24 |
| CHD1520R | 1.905-273.0 | 15 | 200 | 1450 | 5.7 | 24 |
| CHD1720R | 1.905-274.0 | 16.7 | 200 | 1450 | 6.8 | 24 |
| CHD2120R | 9.220-108.0 | 21 | 200 | 1450 | 7.9 | 24 |
Unit basis: 1 MPa = 10 bar, so 200 bar is 20 MPa; 1000 bar is approximately 14500 psi, so 200 bar is approximately 2900 psi. Flow values are quoted exactly as printed.
| Item | Published value | Note |
|---|---|---|
| Weight | 6.8 kg | Pump only |
| Oil capacity | 0.58 L | Oil grade and change interval Not published |
| Inlet / outlet | G 1/2 in / G 3/8 in | Thread form as printed |
| Maximum water temperature | 65 deg C (149 deg F) | Derating Not published |
| Power take-off | 24 mm at 1450 rpm | Motor and drive ratio Not published |
| Continuous / peak pressure | 200 bar for both | Supplier confirmed, 2026 |
| Combined duty point | Not published | 200 bar with 21 L/min not published |
Applications and Model Selection
The catalogue names professional high pressure washers, vehicle washing systems and misting systems. Selection starts from required flow, because all four models share the same 200 bar ceiling.
How to choose a flow rate
CHD1220R at 12 L/min and 4.7 kW suits a single lance; CHD1520R at 15 L/min adds flow without changing pressure class. CHD1720R at 16.7 L/min sits in the middle. CHD2120R at 21 L/min and 7.9 kW suits multi-nozzle vehicle arches, surface cleaning heads and misting racks. Single-gun work depends on the trigger unit and nozzle choice: see the high pressure washer gun, foam gun, quick-connect nozzle tips and surface cleaners. Do not choose the largest model for one lance; the extra flow needs a larger drive and hose bore.
Do not select a CHD model for water above 65 deg C, for pressures above 200 bar, or for a duty point requiring 200 bar and 21 L/min at the same time; that combined point is Not published. See also the undercarriage cleaner and the pressure washer accessories category.
Operation, Maintenance and Safety
Oil level and oil changes
The side cover carries a round oil sight glass and the red filler cap on its standpipe is the fill point. Published oil capacity is 0.58 L. Check the sight glass before first start and at each service interval, with the pump level. Oil grade, change interval and temperature limits are Not published, so follow the service sheet supplied with the pump.
Inlet and outlet connections
Fit the supply line to the G 1/2 in inlet and the high pressure line to the G 3/8 in outlet. Provide a flooded, filtered supply and bleed air before the first run, since a dry start damages plunger seals. Never run against a closed outlet without a relief or unloader valve, because no integral unloader is published. Wear eye protection when testing at 200 bar and confirm every hose, fitting and nozzle is rated above the working pressure; see the AR high pressure washer for hose and gun matching.
Frequently Asked Questions
What pressure does the CHD Series reach? A published maximum of 200 bar (20 MPa / 2900 psi) for all four models. The supplier confirms 200 bar for both continuous working pressure and peak pressure.
What flow rates are available? 12, 15, 16.7 and 21 L/min for CHD1220R, CHD1520R, CHD1720R and CHD2120R.
Can it handle hot water? Up to 65 deg C (149 deg F) is published. It is not a hot water washer and no derating curve is published.
Which model suits a vehicle wash system? CHD1720R at 16.7 L/min or CHD2120R at 21 L/min suits multi-nozzle arches; CHD1220R at 12 L/min suits a single lance.
Is 200 bar available at 21 L/min continuously? A combined duty point is Not published. The catalogue lists maximum pressure and maximum flow separately and publishes no efficiency curve.
What motor or power supply is required? Not published. The catalogue gives 1450 rpm, a 24 mm shaft and 4.7 to 7.9 kW input power, but no motor frame, voltage or frequency.
The 200 bar triplex plunger pump in the CHD Series covers 12 to 21 L/min from one 1450 rpm platform. For a quotation, state the model, intended duty point, water temperature and drive arrangement.
