Screw Self Suction Pump Highest Quality on The Market

• Customization: Available
• After-sales Service: Online Video Guidance or Paid Site Service
• Warranty: 1 Year
• Model NO.: ZGD - 370
• Installation Method: Horizontal
• Power: Electric
• Material: Cast Iron
• Working Fluid: Water
• Performance: No Leak
• Applications: Drinking Water Treatment, Family Homes, HVAC OEM
• Diffuser: Noryl
• Impeller: Brass,PPO or AISI304 Ss on Demand
• Caliber: 25mm and 50mm
• Protection Class: IP44/IP54
• Transport Package: Standard Export Wooden Case
• Specification: Customized
• Trademark: ZGD
• Origin: China
• HS Code: 8413709990
• Production Capacity: 1000

Product Description

Product Introduction
The ZGD Screw Self-Priming Pump stands as the epitome of miniature water pump technology, combining a water pump, motor, and advanced sealing into one cohesive unit. Powered by both single-phase and three-phase asynchronous motors, the pump features a uniquely designed spiral impeller, which creates an original cavity that allows for impressive self-suction capabilities. The pump and motor are connected with a single-end mechanical seal, while an O-type durable oil-rubber sealing ring ensures a reliable static seal.

Usage Conditions
To ensure optimal performance, the electric pump must operate continuously under the following conditions:
1. The medium temperature should generally not exceed +40°C;
2. The pH value of the medium should range between 6.5 and 8.5;
3. Solid impurities in the medium should not surpass a volume ratio of 0.1%, with particle sizes no larger than 0.2mm;
4. The power supply frequency should be 50Hz, with a single-phase voltage specification of
220V. The voltage fluctuation should remain within 10% of the rated value.

Overview
The ZGD Screw Self-Priming Pump represents a groundbreaking fusion of a water pump, motor, and sophisticated sealing technology in a compact form. The single-phase and three-phase asynchronous motors drive a spiral-structured impeller that excels in self-suction due to the original cavity design. A single-end mechanical seal pairs the pump with the motor, complemented by an O-type durable oil-rubber sealing ring for static sealing.

Technical Parameter Table

Model	Rated power Kw	Max. flow m^2/h	Rated flow m^2/h	Max. head m	Head usage range m	Max. absorbing height m	Synchronous speed r/min	Rated voltage v	Critical cavitation residue m	Pipe inner Diameter mm
ZGD550	0.55	3.6	2	80	Full head	9	2850	220	3.8	25
ZGD750	0.75	3.6	3	90						25
ZGD1100	1.1	5	4	100						25
ZGD1500	1.5	5	4	120						25
ZGD1800	1.8	10	8	150						25
ZGD2200	2.2	12	8	150						40