Calpeda pumps and spare parts

We select Calpeda pumps and their spare parts by flow, head and operating conditions, including series, construction and repair components.

NM, NMD, NMS close coupled pumps

Single stage close coupled pumps with threaded (NM, NMD) or flanged (NMS) ports; NMD carries two back to back impellers with axial thrust balancing. Seals, impellers, shafts and casing parts are selected by the complete pump code.

NM, NMD: 1–66 m³/h, head 3.5–114 m.
NM, NMS: 1–480 m³/h, head 3–95 m.
Power: 0.25–75 kW.
Dimensions and duty to EN 733.

MXH and MXV multistage pumps

Horizontal MXH and vertical in-line MXV pumps in chrome nickel stainless steel; MXHL is the AISI 316L version. On MXV 25-32-40-50,100 above 4 kW the mechanical seal is replaced without removing the motor.

MXH: 1–66 m³/h, head 5.5–68 m.
MXV: 0.6–120 m³/h, head 3–250 m.
MXV ports are coaxial and equal in size.
Stages and casing in stainless steel.

MXP, MPS and MPSU compact multistage pumps

The horizontal MXP and the five inch submersible MPS and MPSU use Noryl stages in an AISI 304 jacket. Casing diameter, number of stages and shaft seal condition define the repair parts.

MXP: 1–7.2 m³/h, head 5–40 m.
MPS, MPSU: 1–7.2 m³/h, head 8–78.5 m.
MPSM and MPSUM: built in capacitor.
The motor is cooled by the pumped water.

NCS3 and NCE circulators

Circulators for heating, domestic hot water and solar circuits; NCE uses a permanent magnet synchronous motor with an on board inverter. Casing, can, seal and control board are supplied as separate items.

NCS3: 0.5–3.5 m³/h, head 0.25–4.5 m.
NCE(D) H: 0.1–11.75 m³/h, head 0.1–10 m.
NCE HQ F twin version: 1–48 m³/h.
Liquid temperature up to +110 °C.

NR and NR4 in-line pumps

Single stage pumps with coaxial ports for heating, air conditioning and water supply; NRD and NRD4 are twin head versions with a built in automatic switching valve. Service parts include the seal, bearings and impeller.

NR, NR4: 2–110 m³/h, head up to 39 m.
Power: 0.25–7.5 kW.
NRD: two pump heads and an automatic valve.
Equal port sizes on a common axis.

SD, SDX, SDS borehole pumps and CS-R motors

Borehole pumps for 4, 6, 8 and 10 inch wells in AISI 304 or AISI 316 construction. CS-R submersible motors are supplied separately, so diameter, power and supply voltage matter for selection.

SD: 4" and 6", 0.15–21 m³/h, head up to 305 m.
SDX: 6" and 8", head 8.2–700 m.
SDS: 15–350 m³/h, head up to 470 m.
CS-R motors: 4–10", 0.37–185 kW.

GX, GQ, GM and GK drainage and sewage pumps

Submersible drainage and sewage pumps with open, vortex or channel impellers, or with a grinder. Repair supplies include the mechanical seal, rings, shaft and impeller matched to the exact version.

GXR, GXV: 1.2–13.2 m³/h, head 1.7–12.7 m.
GQR: 3–30 m³/h, head 3–20 m.
GQN: solids up to 50 mm.
Double seal with an oil chamber.

NG, NGL, NGX, CA and A self-priming pumps

Built in ejector, liquid ring and open impeller pumps for wells, irrigation and pressure boosting. The repair kit follows the impeller and seal design of the specific version.

NG: 0.25–9.5 m³/h, head 15.5–74.5 m.
NGL, NGX: 0.3–8.4 m³/h, head 18–55.5 m.
CA: 0.12–2.4 m³/h, head 6.5–53 m.
A: 3.6–66 m³/h, head 3.3–33.6 m.

MPC, I-MPC, NMP pool pumps and PF pre-filters

Self priming pool pumps with a built in strainer, plus stainless steel or polypropylene pre-filters. Strainer basket, diffuser, shaft seal and casing cover are supplied as spares.

MPC: 3–40 m³/h, head 4.2–18 m.
I-MPC includes integrated control.
NMP: basket with 3 mm holes.
PF: 6 mm stainless basket or 5 mm polypropylene.

Mechanical seals and repair kits

In the cross section catalogue the mechanical seal occupies positions 36.00 and 72.00, the shaft sleeve 64.08 and the wear ring 14.54. Selection requires the pump type, the rating plate serial number and the position number.

Position 36.00 or 72.00 — mechanical seal.
Position 64.08 — shaft sleeve.
Position 81.00 — ball bearing.
Position 94.00 — capacitor.

IDROMAT, I-MAT, EASYMAT and SMAT controls

Electronic devices start the pump and protect it: pressure and flow sensing, check valve, dry running and overload protection. Selection follows motor power and the connection diagram.

IDROMAT: 0–10 bar gauge, G1 check valve.
I-MAT: variable speed drive, IE2 class.
EASYMAT: constant pressure control.
SMAT: dry running and overload protection.

Diffusers and diffuser assemblies

The diffuser occupies position 26.00, the final diffuser 26.01 and the suction ring 26.10. In multistage pumps the stage count sets the number of diffusers, so state the size and the number of stages in the enquiry.

Position 26.00 — stage diffuser.
26.01 — final diffuser.
26.10 — suction ring.
Diffuser count equals stage count.

Shafts, sleeves and bearings

The pump shaft is position 64.00, the shaft sleeve 64.08 and the bearings 63.00, 66.00 or 81.00 depending on the series. Shaft replacement is checked together with the sleeve, the keys and the bearing seats.

64.00 — pump shaft, 64.08 — shaft sleeve.
63.00 and 66.00 — impeller side and coupling side.
81.00 — ball bearing.
64.16 — shaft sleeve key.

Casing parts, covers and flanges

The pump casing is 14.00, the delivery casing 12.01 or 20.00, the lantern bracket 32.00 and the suction counterflange 13.00. Casing parts follow the port design, so the diameter and port type — threaded or flanged — matter.

14.00 — pump casing.
12.01 and 20.00 — delivery casing.
32.00 — lantern bracket.
13.00 — suction counterflange.

Booster sets and pressure boosting

MÈTA, E-MPS, E-MXP and E-NGX sets combine multistage or self priming pumps with a pressure transducer and a check valve. Selection needs the required head, the number of draw off points and the supply voltage.

MÈTA: 2–16.8 m³/h, head 15–55 m.
E-MPS: 1–4.5 m³/h, head 8–66.5 m.
E-MXP: 1–7.2 m³/h, head 8–56 m.
E-NGX: 0.3–6 m³/h, head 20–51 m.

Filters, accessories and instruments

PF pre-filters with a 6 mm basket and PFP with a 5 mm basket, plus ACSR accessories: valves, pressure gauges, level probes, membrane vessels, float switches and flexible hoses. Selection follows the connection and the working pressure.

PF: stainless basket, 6 mm holes.
PFP: polypropylene basket, 5 mm holes.
ACSR: valves, gauges, vessels.
Level probes and float switches.

N, N4 end suction pumps to EN 733

Single stage pumps with axial suction and radial delivery, with dimensions and performance to EN 733. The Back Pull-Out design allows the rotating assembly to be removed without disturbing the pipework; casings, impellers, shafts, seals and bearings are supplied as spares.

N, N4: 2.4–480 m³/h, head 1.5–95 m.
Power: 0.25–75 kW.
Dimensions and duty to EN 733.
Back Pull-Out construction.

CT, T, TP peripheral pumps

Peripheral close coupled pumps with a compact patented casing design and protection against water entering the motor from outside. They serve pressure boosting and water supply duties; impeller, seal and casing parts are the service items.

CT: 0.48–2.3 m³/h, head 3–41 m.
T, TP: 0.06–6 m³/h, head 5–165 m.
CT power: 0.33 kW.
T, TP power: 0.33–7.5 kW.

GK, GM pumps and GEO lifting stations

GK sewage pumps handle high flows and sewage containing gas, compacted solids and fibrous material; GM, GMC and GMV are compact submersible versions. GEO stations use 40, 230 or 500 litre tanks and are assembled around the selected pump.

GK: 1–2800 m³/h, head 5–75 m.
GMC: single channel impeller.
GMV: free flow vortex impeller.
GEO tanks: 40, 230 and 500 litres.

Selecting Calpeda equipment

State the application, required flow, head, liquid temperature and power supply. Borehole and drainage duties also need the well or sump diameter, immersion depth and solids content.

Spare parts and wear parts

Mechanical seals, impellers, diffusers, shaft sleeves, bearings and casing parts are ordered by the pump type, the rating plate serial number and the position number in the cross section catalogue.

Replacement and repair

Replacing a seal, wear ring or impeller restores duty at a fraction of the cost of a new pump. We confirm which adjoining parts should be renewed with the worn item before the order is placed.

Reading the cross section

Each series cross section lists position numbers with their designations. Check both together: the same number may cover different parts between series, and one part may carry different numbers.

Single and double seals

Drainage and sewage pumps use two mechanical seals with an oil chamber between them; close coupled and multistage pumps use one. State the seal type and the ring materials when ordering.

Fitment confirmation

A part is matched by pump type, serial number and position number. When the serial number is unreadable, photographs of the rating plate, casing and assembly identify the series; written confirmation follows a full check.

Duty and starting conditions

For an installation in service, state whether the pump runs continuously or intermittently, which protection is fitted and how it is started. This separates wear from a setting problem.

Availability, price, lead time and documents are established for the specific enquiry. Official dealership and compatibility require confirmation of the complete version. Prices are not published; terms depend on construction and quantity.