Sealed pumps for liquefied gases, chemically active liquids

Hermetic pumps are a special group of pumps designed for specific applications. This equipment is used for transferring particularly hazardous substances, such as liquefied ammonia, nitrogen, aggressive acids, and toxic materials.

Pumps of this type have no seals on rotating parts; their working chamber is completely hermetic, eliminating the possibility of leakage.

Technical specifications of the seal-less hermetic motor pump:

• Capacity: Q up to 1200 m³/h.
• Head: H up to 800 m.
• Liquid temperature range: from -200 to 450°C.
• Material: Metal: SS304/316/316L; Hastelloy C4, C276, etc.; Insulation: H, C, Super-C, etc.
• Gasket: PTFE, metal spiral wound gasket, etc.
• Flange standards: ANSI, ASME, HG, DIN, JIS, GB, SH.
• Standard explosion-proof terminal box: Exd IIC T1-4, Exd IIB T1-4.
• High-efficiency design with anti-cavitation characteristics.
• Automatic axial balancing.

Seal-less hermetic motor pumps are used in the oil, chemical, medical, textile, and nuclear power industries, as well as in defense, shipbuilding, municipal water supply and wastewater systems, high-pressure firefighting systems, and high-rise building water supply applications.