Main pump
Bearing Wholesalers complete pumping systems and solutions for buildings, industry and every aspect of water use. Select your market area below and find out more about how Grundfos meets requirements for energy efficiency and resource management for your application.
In heating and air conditioning systems, water must be distributed from the supply system to the point of consumption. This is done by means of main pumps.
Larger systems can be divided into several pipe circuits with each their local pump. The main pump is the pump that distributes the total amount of water from the supply source.
Due to variations in heat demand and flow in large systems, it is recommended to use speed controlled pumps in parallel as main pumps. By using speed controlled pumps it is also possible to obtain maximum energy savings.
A maximum of three pumps plus one standby pump is recommended.
![Parker Piston Pump 400481004577 PV270R1L1L2NUPZ+PVAC1PUM](https://m.bearing-wholesalers.com/uploaded_images/d1556894-parker-piston-pump-400481004577-pv270r1l1l2nupz-pvac1pum.jpg)
- Parker Piston Pump 400481004577 PV270R1L1L2NUPZ+PVAC1PUM
- 1 pcs
- Negotiable
![Parker Piston Pump 400481003917 PV140R1K4T1NUPG+PVAPVV44](https://m.bearing-wholesalers.com/uploaded_images/d1609473-parker-piston-pump-400481003917-pv140r1k4t1nupg-pvapvv44.jpg)
- Parker Piston Pump 400481003917 PV140R1K4T1NUPG+PVAPVV44
- 1 pcs
- Negotiable
![Parker Piston Pump 400481003832 PV270R1L1M3NUPGX5888+PV2](https://m.bearing-wholesalers.com/uploaded_images/d1555606-parker-piston-pump-400481003832-pv270r1l1m3nupgx5888-pv2.jpg)
- Parker Piston Pump 400481003832 PV270R1L1M3NUPGX5888+PV2
- 1 pcs
- Negotiable
![Parker Piston Pump 400481004956 PV180R1K1LLNMRC+PV180R1L](https://m.bearing-wholesalers.com/uploaded_images/d1604554-parker-piston-pump-400481004956-pv180r1k1llnmrc-pv180r1l.jpg)
- Parker Piston Pump 400481004956 PV180R1K1LLNMRC+PV180R1L
- 1 pcs
- Negotiable
![Japan Dakin original pump W-V50A3RX-20](https://m.bearing-wholesalers.com/uploaded_images/d1609473-japan-dakin-original-pump-w-v50a3rx-20.jpg)
- Japan Dakin original pump W-V50A3RX-20
- 1 pcs
- Negotiable
![USA VICKERS Pump PVQ10-A2R-SS1S-20-C21-12](https://m.bearing-wholesalers.com/uploaded_images/d1557452-usa-vickers-pump-pvq10-a2r-ss1s-20-c21-12.jpg)
- USA VICKERS Pump PVQ10-A2R-SS1S-20-C21-12
- 1 pcs
- Negotiable
![Rexroth original pump A10VSO28DFR1/31R-PPA12N00](https://m.bearing-wholesalers.com/uploaded_images/d1550310-rexroth-original-pump-a10vso28dfr1-31r-ppa12n00.jpg)
- Rexroth original pump A10VSO28DFR1/31R-PPA12N00
- 1 pcs
- Negotiable
![USA VICKERS Pump PVM018ER07CS02AAB2811000AA0A](https://m.bearing-wholesalers.com/uploaded_images/d1609476-usa-vickers-pump-pvm018er07cs02aab2811000aa0a.jpg)
- USA VICKERS Pump PVM018ER07CS02AAB2811000AA0A
- 1 pcs
- Negotiable
![Parker Piston Pump 400481002658 PV180R1K1A4NFPD+PGP511A0](https://m.bearing-wholesalers.com/uploaded_images/d1604554-parker-piston-pump-400481002658-pv180r1k1a4nfpd-pgp511a0.jpg)
- Parker Piston Pump 400481002658 PV180R1K1A4NFPD+PGP511A0
- 1 pcs
- Negotiable
![USA VICKERS Pump PVH131R13AF30B252000001001AB010A](https://m.bearing-wholesalers.com/uploaded_images/d1559341-usa-vickers-pump-pvh131r13af30b252000001001ab010a.jpg)
- USA VICKERS Pump PVH131R13AF30B252000001001AB010A
- 1 pcs
- Negotiable
![Parker Piston Pump 400481003745 PV140R9K4B4NWLZ+PGP517A0](https://m.bearing-wholesalers.com/uploaded_images/d1550310-parker-piston-pump-400481003745-pv140r9k4b4nwlz-pgp517a0.jpg)
- Parker Piston Pump 400481003745 PV140R9K4B4NWLZ+PGP517A0
- 1 pcs
- Negotiable
![USA VICKERS Pump PVM098ER11GS02AAA28000000A0A](https://m.bearing-wholesalers.com/uploaded_images/d1556894-usa-vickers-pump-pvm098er11gs02aaa28000000a0a.jpg)
- USA VICKERS Pump PVM098ER11GS02AAA28000000A0A
- 1 pcs
- Negotiable