Weir GEHO Piston Diaphragm Pumps

TZPM 100–2000, ZPM 250–1700, TZPM HB and ZPM HB: identify valves, seats, diaphragms, seals and reciprocating-drive parts by pump model, flow, pressure and temperature.

Manufacturer image of the Weir GEHO TZPM 2000 triplex single-acting piston diaphragm pump
Manufacturer image of the GEHO TZPM 2000 showing the triplex fluid end, pulsation dampener, crankcase, gearbox and motor.
Manufacturer cutaway of the Weir GEHO TZPM 2000 piston diaphragm pump
Manufacturer cutaway of the GEHO TZPM 2000 showing the arrangement of check valves, diaphragms, pistons, cylinder liners, connecting rods, crankshaft and drive.
Manufacturer image of the Weir GEHO ZPM 900 duplex double-acting piston diaphragm pump
Manufacturer image of the GEHO ZPM 900. Its duplex double-acting design and the TZPM triplex single-acting design are not interchangeable solely on the basis of capacity.
OEM equipment guide

Pump models, operating conditions, fluid-end wear parts and drive spares

Use this guide to identify GEHO piston diaphragm pump spares for drawing-based supply. First confirm the installed pump from its full model, serial number, flow, discharge pressure, temperature and pumped medium. Then confirm manufacturing requirements using the general arrangement, BOM, drawing, valve and cylinder positions, used parts and maintenance records.

4Manufacturer design families
10–1,500 m³/hPublished flow range per pump
≤30,000 kPaPublished maximum pressure
12Wear-part and spare-part categories
Models and key specifications

GEHO TZPM, ZPM and Heat Barrier families

TZPM and ZPM model ranges, flow, pressure, power, temperature and assembly weights follow Weir's current product pages. Heat Barrier entries are limited to the design and temperature range confirmed by the manufacturer.

Model / seriesDesignPublished flowPublished pressure / powerTemperature / assembly weight
TZPM 100–2000Triplex, single-acting, crankshaft-driven10–1,500 m³/h1,500–30,000 kPa; 100–4,000 kW−40–+120°C; assembly approximately 5–240 t
ZPM 250–1700Duplex, double-acting, crankshaft-driven10–800 m³/h1,500–30,000 kPa; 10–2,500 kW−40–+120°C; assembly approximately 3–120 t
TZPM HBTriplex, single-acting, Heat BarrierProject-specificHigh-temperature, high-pressure process pumpingTypical hot-slurry range: 150–250°C
ZPM HBDuplex, double-acting, Heat BarrierProject-specificHigh-temperature, high-pressure process pumpingTypical hot-slurry range: 150–250°C
Flow and pressure values cover the published series range; they do not mean that an individual model reaches every maximum simultaneously. Before manufacture, confirm the full model, serial number, cylinder and valve positions, temperature rating, materials, drawing and installed part.
Wear parts

Check valves, seats, diaphragms, seals and thermal-isolation components

The manufacturer identifies check valves as the principal wear parts in direct contact with slurry. Diaphragms, seals and cylinder liners require separate assessment according to their isolation, pressure-retaining and maintenance functions; they should not all be treated as ordinary pump liners.

GEHO TZPM preformed diaphragm and fluid end, detail from manufacturer cutaway
03

Preformed diaphragms

Preformed Diaphragm

The diaphragm separates abrasive slurry from the piston, cylinder liner and hydraulic side. When ordering, confirm the pump model, diaphragm chamber, profile, clamping interface, stroke, medium, temperature and replacement history.

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Spare parts

Reciprocating mechanisms, bearings, drives, dampeners and controls

Drive components and auxiliary systems are assessed separately. Check crankshafts, connecting rods, pistons, bearings, gearboxes, pulsation dampeners and controls against the full pump model and installed interfaces.

GEHO TZPM piston, piston rod and crosshead, detail from manufacturer cutaway
01

Pistons, piston rods and crossheads

Piston, Piston Rod & Crosshead

These parts transmit the crank mechanism's reciprocating motion to the hydraulic side. Confirm the pump model, cylinder position, stroke, rod diameter, connecting threads, crosshead sliding surfaces and assembly datums.

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GEHO TZPM motor, gearbox and drive interfaces, detail from manufacturer cutaway
04

Gearboxes, couplings and drive interfaces

Gearbox, Coupling & Drive Interface

The crankshaft is generally driven by a motor and gearbox with variable-frequency control. Confirm power, speed, gear ratio, shaft extension, rotation direction, coupling, base and guard interfaces.

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FAQ

Frequently asked questions

Is the TZPM or ZPM series name enough to identify valves and diaphragms?

No. Provide the full numeric model, serial number, cylinder position, suction or discharge valve position, pressure, temperature, medium, drawing, used-part dimensions and maintenance records. Project configurations can differ within the same series.

Are all internal GEHO piston diaphragm pump parts slurry wear parts?

No. The manufacturer explains that the diaphragm isolates slurry from moving parts. Check valves in direct contact with slurry are the main wear parts. Assess diaphragms, seals, cylinder liners, pistons and drive parts separately by function and failure mode.

Which GEHO OEM model details are listed on this page?

Part numbers are published only when supported by traceable manufacturer catalogues, drawings, BOMs or installation records. Send the nameplate, full pump model, drawing, valve position, and used-part photographs and dimensions for checking.

Send your GEHO pump model, serial number, valve position, drawing or used-part details

Provide the full model, serial number, cylinder position, suction or discharge valve position, flow, pressure, temperature, medium, drawings or samples, and used-part photographs and dimensions. These support identification, material assessment, manufacturing coordination, quality control and finished-part delivery.

Equipment Brand and ModelDrawingDrawing or DimensionsCurrent MaterialPhotographs of Failed PartsTarget Service LifeOperating Conditions
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Manufacturing Services in China

From Technical Assessment to Finished-Part Delivery

ANRANST provides customers worldwide with engineering assessment, production at certified foundries to the customer technical requirements, quality control and finished-part delivery for custom wear parts and industrial spares, with scope to support other custom industrial parts.

01

Drawing and Engineering Review

We review mating surfaces and interface dimensions and assess material, heat treatment and manufacturing feasibility.

02

Material and Heat-Treatment Specification

Material grades and heat-treatment processes are specified order by order, stated in the technical agreement and tracked through production.

03

Quality Control

Drawing confirmation, material and process control, production tracking, inspection and acceptance coordination.

04

Finished-Part Delivery

We coordinate manufacturing, quality confirmation, packaging and delivery of complete finished parts in a workable, closed-loop supply process.

Provide the equipment brand, complete model and serial number, part name, part number or drawing number, drawing revision, quantity, material requirements and duty. If identifiers are unavailable, send photographs and key dimensions.

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