Hot Water Circulation Pump

Hot Water Circulation Pump

The MECHLION HW glandless circulator series is a pump range for mainly hot water circulation (heating) and hot water services (tap water) applications.

MECHLION HW series residential and light commercial hot water circulator pumps constitute a complete range of 3-speed circulator pumps. The pumps can be used in both open and closed systems.

HW pumps are of the canned-rotor type, i.e. pump and motor form an integral unit without a shaft seal and with only two gaskets for sealing.

The bearings are lubricated by the pumped liquid. This pump has 130mm or 180mm port to port dimensions to be chosen.

Exploded View and parts

PARTS	MATERIALS
Rear Housing	Cast iron/ Brass/ Stainless Steel
Impeller	PES/ PP
Shield cover base	Stainless Steel
Bearing	Ceramic
Gasket	Rubber
Thrust bearing	Graphite/Carborundum
Rotor	Silicon steel
Shaft	Ceramic
Shield cover	Stainless steel
Stator	Silicon steel & Copper
Motor casing	Die-cast Aluminium
Inner-hexagon screws	Stainless steel
Air exhaust screw	Brass
Nameplate	Nylon
Terminal box	Nylon

Pump Features & Application

Feature

Easy set-up and installation
High efficiency for low electricity bill
Robust construction for better reliability
Dry-run protection for longer product life
Quiet operation for better life quality
No sealing problem, No leakage

Application

Solar water heating circulation
Floor heating circulation
Air condition circulation
Hot water boiler boosting
Heat pump circulation

Performance Curves

Technical Specification

Model	HZ	Phase	Voltage	Power	Head	Flow	Current	input/output	Weight
HW(S)-25-40-130	50	Single	220V-240V	62.4/53.7/43.7	4	3.2	0.27	1-1/2″	2.3
HW(S)-25-40-180	50	Single	220V-240V	62.4/53.7/43.7	4	3.2	0.27	1-1/2″	2.6
HW(S)-25-60-130	50	Single	220V-240V	73.5/59.7/46.6	6	3.5	0.32	1-1/2″	2.3
HW(S)-25-60-180	50	Single	220V-240V	73.5/59.7/46.6	6	3.5	0.32	1-1/2″	2.6