Diamond High Pressure Pump - Sprayer and Accessories Manufacturing and Development 50 Years Experience
PRODUCT

Product

High-Pressure Triplex & Plunger Pumps


How High-Pressure Triplex Plunger Pumps Work

A triplex plunger pump is a type of positive displacement pump that moves fluid by mechanical action, converting it into hydraulic energy. While many pump types exist—such as piston, gear, and multistage centrifugal pumps—our specialty lies in high-pressure pumps. Our models are primarily crankshaft-driven, reciprocating triplex plunger pumps, complemented by a selection of piston pumps and radial axial block driven pumps.


Our pumps' capabilities range as follows:

  • Working pressure: 0 – 300 bar (up to 4350 PSI)
  • Flowrate: 250 ml/min – 270 L/min
  • Required HP: ¼ HP – 60 HP

Applications of Triplex Plunger Pumps

High-pressure triplex pumps generate intense fluid pressure through a series of mechanical actions, transferring energy from the power source to the plunger and ultimately to the fluid. When combined with various specialized nozzles, this high-pressure fluid can be utilized for the following applications:


Misting

Applications include cooling, humidification, dust suppression, disinfection, fire control, disease prevention, and creating special landscape effects.


Cleaning

Ideal for vehicle washing, environmental cleaning, and various industrial cleaning tasks.


Waterjet Cutting


Fluid Delivery

Used for high-pressure boiler feed water, oil well feed water, and more.


Our high-pressure pump systems are constructed from a variety of devices, electrical components, and logic control units. Different frameworks are engineered to meet specific customer needs, encompassing the high-pressure pump, driving power source, drive mechanism, pressure and logic control units, tubing design, electrical wiring, housing, and safety features.


Triplex Plunger Pump Specifications

Our high-pressure pumps are crankshaft-driven triplex plunger pumps, available in three main categories:


Professional Use

These pumps run at RPMs below 1000, typically driven by a pulley belt (direct drive with 6P/8P induction or inverter motors also available). They integrate with PLCs or advanced control systems and sensors to form a complete logical system. Recommended for 24/7 industrial operations, their low RPM operation extends the life of wearable parts and lubricant, reducing maintenance frequency.


Semi-professional Use

Operating between 1450 and 2000 RPM, these are often in direct drive (powered by a 4P induction motor or a low-RPM engine). Combined with a simple control panel, this category is ideal for high-pressure cleaning machines and basic systems for low-intensity commercial use. The medium working RPM leads to faster wear on parts and requires more frequent oil changes compared to professional models, resulting in slightly higher maintenance costs.


DIY Home Use

Running at RPMs higher than 2500, these pumps are mostly direct-drive (using a 2P induction motor or high-RPM engine) and operated by a simple on/off switch with basic accessories. With a guaranteed life cycle of less than 200 hours, they are recommended for home or infrequent use, for no more than one hour of consecutive work.

Commercial Hight Pressure Pumps

Our Direct-Drive High-Pressure Pumps are the ideal choice for a wide range of industrial applications, including cleaning, cooling, rust removal, and more. These pumps feature a direct-drive design, offering exceptional volumetric efficiency and reduced noise levels. This performance is achieved through our rigorous selection of precision components: specialized high-polymer engineering plastic high-pressure seals, wear-resistant rubber low-pressure seals, precision ceramic plungers, chrome-molybdenum alloy steel crankshafts, die-cast aluminum alloy bodies, and forged brass alloy cylinder heads. These components guarantee outstanding performance and an extended lifespan during operation.

Commercial Hot Water High Pressure Pump

Our Direct-Drive Hot Water High-Pressure Pumps deliver exceptional performance and reliability even under demanding conditions. They are specifically designed for high-temperature and high-pressure applications. All models are designed for a maximum inlet water temperature of 75°C and feature a direct-drive design, providing excellent volumetric efficiency and superior vapor pressure resistance.

Industrial High Pressure Pump

Our Industrial High-Pressure Pump Series is engineered for demanding, continuous, high-intensity industrial applications. Whether you need cleaning, rust removal, surface preparation, pipeline pressure testing, or operation in other harsh environments, these pumps deliver consistent and reliable performance. All models feature a slow-speed design and are built with premium, high-quality components, including precision ceramic plungers, chrome-molybdenum alloy steel crankshafts, specialized high-polymer engineering plastic high-pressure seals, and wear-resistant rubber low-pressure seals. This ensures exceptional durability, lower noise levels, and superior volumetric efficiency.

Product Search

Please Enable cookies to improve your user experience

We use cookies to collect and analyze information on site performance and usage. By Clicking "Continue" or by clicking into any content on this site, you agree to allow cookies to be placed. To find out more, please visit our privacy policy.