Product Features
1.Symmetric impeller layout mostly eliminates axial thrust; residual thrust is borne by back-to-back angular contact ball bearings. Balancing disc is canceled to remove friction and bypass loss, raising pump efficiency by 5%–14% and avoiding breakdowns from failed balance components for longer service life.
2.Proprietary anti-abrasion seal integrates merits of packing and mechanical seal: particle-resistant and leak-free for long-term service in solids-containing medium.
3.In-house developed waterproof bearing housing design prevents liquid intrusion under running or standby status, prolonging bearing lifespan and cutting maintenance expense.
4.Stable low-noise operation, wide performance curve, easy installation & maintenance.
Main Application
Mine slurry drainage, hot water, petroleum liquid, corrosive & abrasive medium pressurization.
Model Designation
For example:
Model: ZD (ZDG, ZDF, ZDY, ZMD) 46-30×4
ZD — Self-Balancing Multi-Stage Clear Water Centrifugal Pump
ZDG — Self-Balancing Multi-Stage Wear-Resistant Centrifugal Pump
ZDF — Self-Balancing Multi-Stage Corrosion-Resistant Centrifugal Pump
ZMD — Self-Balancing Multi-Stage Wear-Resistant & Corrosion-Resistant Centrifugal Pump for Coal Mining
46 — Rated Flow: 46 m³/h
30 — Rated Head per Stage: 30 m
4 — Number of Stages: 4
Structure Diagram
1,Coupling Assembly
2,Key
3,Rotating Assembly
4,Bearing Housing A
5,Stud
6, Nut
7, Packing Gland
8, Packing
9,Lantern Ring
10,Cooling Chamber Cover
11,Suction Casing
12,Wear Ring
13,Diffuser
14,Stage Casing
15,Inter-stage Bushing
16,Wear Ring
17,Discharge Diffuser
18, Discharge Casing
19,Orifice Sleeve
20,Dowel Pin
21, Seal Flush Pipe Assembly
22. Tie Bolt
23,Gasket
24, 2nd Suction Casing
25,Straight Plug Valve
26,Bearing Housing B
27,Stud & Nut
28,Screw
29,O-ring
30, O-ring
