Plunger Metering Pump DPZAAB42-70.5

A pump head can be made of 304, 316, 316L, 904, Hastelloy C, etc.

• High performance plunger, special imported packing and sealing components with a long service life and excellent sealing performance;
• Generally, the plunger diameter is: D=φ2-φ150mm;
• A simple structure, convenient maintenance and high cost effectiveness;
• Integrated worm gear, used as a variable speed transmission mechanism, features low noise and high effciency;
• Adoption of a patented integrated sleeve adjustable eccentric transmission mechanism, simple and reliable, and stroke can be steplessly adjusted in the range of 0%-100%, the metering accuracy is±0.5%(10%-100%adjustment range);
• Oil-immersion lubrication ensures reliable use of the transmission mechanism for a long term;
• Capacity control modes are diversifed, including manual, electrical, pneumatic and frequency conversion adjustment;
• An electric actuator is supplied to realize automatic remote control;
• Two pump heads or multiple heads(12 at most)can be connected in parallel; a pump with two or more heads can be used to transport a same fluid to reduce pulses or transport different fluids as a proportioning pump;
• Due to absence of a safety relief device, it is suggested to install a safety valve on the outlet pipeline of a pump.

• Electrical Heating Plunger Pump Head An electrical heating plunger pump head (see Picture G)is applicable to working conditions where fluids solidify or crystallize below a certain temperature, such as asphalt, paraffin, etc. Due to a fast heating speed as well as installation of a temperature controller, the temperature can be controlled within a certain range.
• Plunger Pump Head with Heat Insulation or Cooling Jacket A plunger pump head with heat insulation or cooling jacket (see Picture H)has insulation or cooling interlayer shells on hydraulic cylinder, inlet and outlet, which perform special heat insulation or cooling of pumped fluids. At the same time, its sealed cavity contains insulation or cooling jacket, controlling the sealed cavity temperature by conveying insulation or cooling fluid to the jacket. Steam heating features stable heating and a relatively small temperature fluctuation, and is mainly applied to transport of fluids requiring heating or those with a high viscosity which drops with a temperature rise. A special heat insulation design is available based on client demand and is applicable to transport of fluid easily crystallizing and requiring heat insulation.
• Remote Plunger Pump Head A remote plunger pump head (see Picture l)realizes a short-distance design between suction valve and discharge valve, thus effectively reducing fluid sedimentation time; at the same time, a cooling system is installed on the transportation pipeline of check valve and pump head to avoid bad effects on pump head and mechanical transmission parts due to over-temperature. It is applicable to delivery of fluids with a high temperature, high viscosity and high toxicity or easy to precipitate as well as occasions with special requirements of installation position. valve system Reliable Check Valve Technology
• Planar Pressure Reset Type Check Valve With the features of a simple structure, wide opening flow way, little back-flow, light weight, rapid reset, etc., the valve is applicable to delivery of fluids with a large capacity, high pressure and low viscosity in water injection pumps, alcohol injection pumps and washing pumps.
• Spherical Automatic Reset Type Check Valve With the features of a simple structure, rapid reset, good sealing and stable running, it can be used to transport fluids with a high viscosity and solid particles, and is applicable to special services requiring good sealing or involving a high viscosity or pressure.
• Spherical Pressure Reset Type Check Valve With the features of a simple structure, good self-cleaning ability, good sealing, stable operation and good fluidity, it can be used for delivery of fluids with demanding performance and solid particles, is especially applicable to services requiring a high accuracy and a low flow, and widely used in equipment with high demand in accurate flow metering and pressure retaining.
• Double Orientation Cone Reset Type Check Valve With the features of quick reset, high precision, good sealing, low noise, little wearing, etc., it is applicable to delivery of fluids with a large capacity and a high viscosity, and is espe- cially suitable in services with environmental noise limit

It is widely used in fields like chemical, petrochemical, natural gas, oil and gas field, foaming, electricity, metallrgy, etc.Particularly, it is especially popular in application of liquid transport with a high viscosity, high pressure, high temperature, etc.