SVPB dry screw vacuum pump

Dry screw vacuum pumps are pumping devices that utilize a pair of screws rotating synchronously at high speed in opposite directions within the pump casing to generate suction and exhaust. They are a replacement for oil-sealed vacuum pumps and can pump gases containing large amounts of water vapor and small amounts of dust. Screw vacuum pumps are widely used in domestic pharmaceutical, chemical, and semiconductor industries, where high cleanliness and vacuum requirements are essential.

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Product Model

Product Speed (L/s)

Ultimate Pressure (Pa)

Motor Power (kW)

InletInlet Diameter (DN)

Exhaust Diameter (DN)

SVPB-30

≤5

SVPB-70

5.5

SVPB-100

100

7.5

SVPB-130

130

SVPB-180

180

100

SVPB-240

240

100

SVPB-320

320

125

SVPB-420

420

125

SVPB-560

560

150

100

SVPB-800

800

150

100

Product Advantages

Torque Variable Screw Production Process

Advanced pump chamber cooling structure

The Xin'anjiang SVPB series screw vacuum pumps employ a hydrodynamic spiral jacket cooling mechanism, which significantly increases the contact area for pump body cooling, achieving a cooling effect and keeping the pump body operating at low temperatures. This structure has also been granted a utility model patent.
先进的泵腔冷却结构

Internal structure diagram of screw pump

SVPB Series Screw Pump External Piping Configuration Diagram

Advanced anti-corrosion coating

Xin'anjiang SVPB series screw vacuum pumps typically employ an advanced Hastelloy-coated anti-corrosion coating, exhibiting excellent corrosion resistance. Hastelloy C-276 alloy is a tungsten-containing nickel, chromium, and molybdenum alloy with extremely low silicon and carbon content, considered a universal corrosion-resistant alloy. It is primarily resistant to wet chlorine, various oxidizing chlorides, chloride salt solutions, sulfuric acid, and oxidizing salts, and demonstrates excellent corrosion resistance in both low and medium temperature hydrochloric acid. Therefore, for the past thirty years, it has been widely used in harsh corrosive environments, such as in chemical, petroleum, flue gas desulfurization, pulp and paper, and environmental protection industries.

This alloy possesses the following characteristics:
① Excellent corrosion resistance to most corrosive media in both oxidizing and reducing atmospheres;
② Outstanding resistance to pitting corrosion, crevice corrosion, and stress corrosion cracking. The high Mo and Cr content enables the alloy to resist chloride ion corrosion, while W further enhances its corrosion resistance. Furthermore, Hastelloy C-276 alloy is one of the few materials resistant to corrosion from moist chlorine gas, hypochlorites, and chlorine dioxide solutions, and exhibits significant resistance to high-concentration chloride solutions such as ferric chloride and copper chloride. It is suitable for sulfuric acid solutions of various concentrations and is one of the few materials applicable to hot concentrated sulfuric acid solutions.

SVPB dry screw vacuum pump

Description

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