Claw vacuum pumps, with no lubricating medium or sealing fluid in the overflow section and capable of condensing and recovering condensable gases, address potential contamination issues from steam jet pumps, vane pumps, and liquid ring pumps that could affect containers and the environment. This ensures product quality for the user, and the recovered materials can significantly boost economic benefits. The maintenance-free design also resolves the hassle of maintaining other vacuum pumps, saving users a substantial amount on maintenance costs.

Principle of Operation for Claw-Type Vacuum Pumps

The claw vacuum pump features several interlocking claw-shaped rotors within the pump chamber. The rotors do not touch each other or the pump chamber, leaving only tiny gaps, and no lubricant is required, ensuring a clean vacuum environment. The pump structure employs a multi-stage rotor interlocking design, with each set of rotors located in different pump chambers and moving in synchronized opposite directions. The pump chamber is divided into two sections: an intake chamber and an exhaust chamber, by the claw-shaped rotors. As the rotors continuously rotate, a cyclic intake and exhaust process is achieved, enabling the pump to continuously evacuate.

Advantages of claw vacuum pumps

1. The biggest advantage is energy-saving, environmental protection, and emission reduction with increased efficiency. Replacing steam jet pumps, it achieves an effective energy-saving rate of over 85% and has no wastewater discharge.

2. Possesses a strong ability to remove condensable gases, including pure solvent gases, enabling gas-liquid separation, refined分流, and recycling for use; truly achieves extensive drainage, and can perform drainage while working normally in practical operations.

3. Achieve a clean vacuum environment. Effectively enhance production efficiency and product quality. The sealing form, composed of skeletal seal, mechanical seal, and special seals, ensures a safe isolation between the pump cavity and the oil tank.

4. Wide vacuum range (105-10-1 kPa), capable of atmospheric start-up, continuous direct suction and exhaust of air, and adjustable vacuum level according to the user's process environment.

5. Variable-frequency drive speed control and DCS control, flexible start-up, minimal whole machine shock, and long service life.

6. This pump features a non-disassembly cleaning function. In case of excessive dust, sticky substances, or other foreign matter during operation, a half-hour cleaning inside the pump meets the factory's requirements, ensuring stable operation.

7. Offer a variety of material options based on different operating conditions

Pump Housing Material: Gray Cast Iron, Cast Steel, Stainless Steel

Rotor Material: Carbon Steel Corrosion Protection Treatment

Spindle Material: 40Cr, 2Cr13

Fully meets the requirements for use in the most severe environments

8. Wide application range, capable of meeting the requirements of all production processes in the petrochemical, pharmaceutical, electronic, aerospace, nuclear, and laboratory industries. Fully compatible with molecular pumps and Roots pumps to form a vacuum unit.

9. This pump can truly achieve large-scale drainage and can discharge while operating normally in actual work.

10. A record of 16,000 hours of continuous, trouble-free operation, ensuring stable and reliable quality. Maintenance-free design with low operating costs.

Comparison of Common Non-Grip Pumps and Grip Pumps: Pros and Cons

Water Ring Pump (Liquid Ring)

Frequently Asked Questions: Medium vacuum pumps, material being pumped mixes with the medium during operation, resulting in low vacuum level.

Material recycling and wastewater treatment costs are high, and they are prone to environmental pollution.

Claw Pump: Mediumless vacuum pump, clean vacuum and high vacuum degree, can be combined with Roots blower unit

Achieve higher vacuum levels, with high material purity and 100% recyclable without pollution, eliminating the need for wastewater treatment. Pass environmental assessments with flying colors, and excel in the production of pharmaceutical intermediates.

Rotary Vane Pump

Frequently Asked Questions: Centrifugal vacuum pumps with media, prone to backflow during operation, and the extracted condensable

The liquefaction of inert gases results in a reduction in vacuum level. Regular replacement of vacuum oil is required, with maintenance and service costs.

High.

Claw Pump: Medium-free vacuum pump, clean vacuum, no backflow, liquid discharge during operation can be centralized

Recycling and centralized processing maintain a constant vacuum pressure and incur no maintenance costs.

Reciprocating Pump (W Pump, Plunger Pump):

Frequently Asked Questions: The vacuum pump without a medium has a structure where the relative sliding of the cylinder and piston creates a vacuum environment. In the chemical industry, when encountering crystalline mediums, it is prone to damage the piston or cylinder, leading to production halt.

Not applicable when the gas being sampled contains a high volume of liquid.

Claw Pump: Medium-free vacuum pump, featuring a frictionless structure and variable-volume compression work.

Principle of operation: Can smoothly extract when encountering crystalline mediums in the chemical and electronic industries.

No damage to the pump housing.

Steam Pump:

Frequent Issues: High energy consumption, low vacuum level, high wastewater treatment costs, and prone to causing significant environmental pollution. Steam consumption

High volume (high operating costs), must be installed above 11 meters, and maintenance is not convenient.

Claw Pump: Energy-efficient and environmentally friendly; materials can be recycled and reused after recovery, without causing pollution to the environment. Additionally, it features no installation.

Height restriction in place.

Vortex pump:

Frequently Asked Questions: Oil-free vacuum pumps, suitable for clean vacuum applications. But in working environments, condensable gases

The liquid produced by the body should not exceed 25 grams per day. Dusty work environments are prone to causing damage to the turbine.

Consumption.

Claw Pump: Media-Free Vacuum Pump, suitable for clean vacuum applications. Condensable gases in working environment

The liquid produced can be discharged during the pump's operation, with no maintenance costs.

The ZE series claw-type dry vacuum pumps are widely used in various vacuum acquisition environments.

Petroleum & Chemical Industry

Application Process:

Pressure-reduced evaporation, crystallization, distillation, sublimation, drying, vacuum concentration, dehydration, chemical reaction absorption, and vacuum material conveying processes

Pharmaceutical Industry

Application Technology:

Vacuum evaporation, filtration, monomer recovery, material conveying, distillation, crystallization, sublimation, drying, deodorization, etc. processes

Electronics Industry

Applied Technology

Coating, Molecular Beam Epitaxy, Ion Beam Etching, Dipping, etc. processes

Various laboratories

Application Technology

Can be widely used in various laboratory vacuum extraction processes, as well as distillation and fractional distillation.

Aerospace Industry

Application Technology

Coating, space environment simulation, brazing, electron beam welding, etc. processes

Metallurgy Industry

Applied Technology

Melting, refining, casting, distillation, de-gassing of molten steel, and heat treatment processes

Biotechnology Industry

Application Technology

Vacuum evaporation, distillation, sublimation, drying, dehydration, preservation, and packaging processes