1 replacement option found

Existing pump - Circulation Pump curve

Brand Older Wilo
Product name DPL 403-16/0,25
Overall length 260 mm
Mains connection 3x400 V
Pipe Connection DN 32 PN10

Replacement pump - Conventional Exchange sheet

Product name DPL 32/135-0,25/4
Item no. 2150373
MEI ≥ 0,4
IE 2
Overall length 260 mm
Mains connection 3x400 V
Pipe Connection DN 32 PN10
Rated Current 0,69 A
Nominal power P2 0,25 kW
Fluid temperature range -20 - +120 °C

Comment

Fits without any modification of piping.
Not fitted with thermal switches (WSK).
If you are pumping chilled water media or special material requirements, please contact Wilo Technical Inside Sales. Replacement pumps designed for glycolin-infused water (max. 50%) have the -S1 extension and a different part number than standard seal pumps. Always consult Wilo when pumping media other than water. 

Product information
DPL 32/135-0,25/4

DPL 32/135-0,25/4
Item no. : 2150373

Your advantages
  • Reduction of space required and installation costs due to twin-head pump design
  • Main/standby mode or peak-load operation (by means of external auxiliary device)
  • High standard of corrosion protection thanks to cataphoretic coating
  • Series design: motor with one-piece shaft
  • Version N: standard motor B5 or V1 with stainless steel plug shaft
Construction
Glanded twin-head pump in in-line design with flange connection.

Application
Pumping of heating water (acc. to VDI 2035), cold water and water/glycol mixtures without abrasive substances in heating, cold water and cooling systems.

Scope of delivery
  • Pump
  • Installation and operating instructions
Technical data
  • Permissible temperature range -20 °C to +120 °C
  • Mains connection 3~400 V, 50 Hz (others on request)
  • Protection class IP 55
  • Nominal diameter DN 32 to DN 100
  • Max. operating pressure 10 bar (special version: 16 bar)
Materials
  • Pump housing and lantern: EN-GJL-250
  • Impeller: PP fibreglass-reinforced /EN-GJL-200 (depending on pump type)
  • Shaft: 1.4021
  • Mechanical seal: AQ1EGG; other mechanical seals on request
Description/construction
Single-stage, low-pressure twin-head pump in in-line design with: 
  • Switchover valve
  • Mechanical seal
  • Flange connection with pressure measuring connection R 1/8
  • Motor with one-piece shaft
BLANK FLANGE P188 KIT
Item no.: 2023964
Blinds for service and repair work.
  • Comes in a complete kit containing a lid and gasket.
COUNTER FLANGE KIT DN32 PN10
Item no.: 2105577
Mating flanges:
  • Made of steel.
  • Counter flanges (weld) are delivered complete (in pairs) with bolt, nut and flange gasket.
Flange gasket DN 32 PN6/10
Item no.: 502616195
Flange gasket DN 32 PN6 / 10:
  • Thickness: 1 mm.
  • Inner diameter: 43 mm.
  • Outer diameter: 82 mm.