Couplers

Couplers allow the pump to be extracted and then quickly returned to the tank with no need to drain it, often an expensive operation involving lengthy plant stoppages.
Perfect mating between flange and coupler is ensured on all units in the Zenit range by a rubber gasket.

Innovation

Zenit bottom couplers can have horizontal or vertical discharge in order to better adapt to the customer's needs. All couplers are designed to receive 2 guide pipes which can accompany the pump into its working position, preventing troublesome rotation.
What's more, a patented system simplifies pump release and reduces the mechanical stresses on the guide pipes, even after an extended period of time immersed in the wastewater.

Another special feature of the Zenit vertical couplers is that they are designed to keep the pump's intake port at the ideal height, with no need to create a step in the bottom of the tank.
They therefore provide a considerable savings in terms of time and the costs involved in the building of collection tanks as well as easy replacement in pre-existing plants.

Range

Zenit DAC E couplers

DAC-E

COUPLERS

The external coupler [DAC-E] consists of two parts: a fixed part for connection to the plant and a movable part connected to the pump by means of an optional threaded connecting pipe.
The two parts can be connected and disconnected without the aid of tools by means of hook operating on the lever principle.

Since this system remains above water level, it can be installed without draining the tank, often a complex, expensive process.

Technical characteristics

  • GAS 2" thread discharge connection
  • Fixed part in EN-GJL-250 cast iron, movable part in EN-GJS-600-3
  • Epoxy-vinyl paint
  • NBR rubber gaskets
  • Full free passage
  • Fixing to tank wall by means of DN50 PN10 flange or 2" GAS thread
  • With a suitable male/female reduction adapter the accessory can also be used with pumps with GAS 1¼" e GAS 1½" discharge ports
Zenit DAC V 32 50 couplers

DAC-V 32÷50

COUPLERS

The bottom coupler with vertical discharge DAC-V is compact and rugged, suitable for installation in small pits. It allows the pump to be connected to the system and easily disconnected for servicing or storage even without draining the tank.
The two guide pipes accompany the pump into position without troublesome rotation. It can be completed with a 2" ball check valve for installation directly on the discharge.
With an adapter kit, the DAC-V vertical discharge bottom coupler can also be used with vertical discharge blue series pumps.
A special valve incorporated in the DAC's body expels any air pockets that may form when the pit water level drops below the priming threshold, ensuring the pump is able to operate normally.

Technical characteristics

  • Inlet GAS 1½" ÷ 2" - DN32 PN6 ÷ DN50 PN10
  • Discharge GAS 2" ÷ 2½"
  • Body in EN-GJL-250 cast iron
  • NBR rubber gasket
  • Epoxy-vinyl paint
  • Full free passage
  • Complete with fitting for connection to polyethylene pipe (Ø 63 mm) [GTP] or ball check valve [VAP]
  • Complete with pipe guide and sliding flange with stainless steel fasteners
  • GTP inlet GAS 2½", discharge GAS 2"
  • VAP inlet GAS 2½", discharge GAS 2"
Zenit DAC V 65 350 couplers

DAC-V 65÷350

COUPLERS

DAC-V vertical discharge bottom couplers for use with pumps up to 1300 kg.
Fixing by means of sliding flange or hook [KGP] (discharge DN350) with double guide pipe. A PATENTED guide pipe connection system that reduces mechanical stresses and simplifies pump release.

To ensure sufficient intake and prevent cavitation, on some pump models with high-power motor it may be necessary to increase the distance between the intake port and the bottom of the tank.

Technical characteristics

  • Flanged models from DN65 to DN350 with or without expansion
  • Cast iron body
  • Cast iron sliding flange
  • Cast iron hook (for models with discharge DN350 only)
  • Two guide pipes of Ø2" (Ø3" for model with discharge DN350)
  • Stainless steel metal fasteners
  • Epoxy-vinyl paint
  • Full free passage
Zenit DAC H couplers

DAC-H

COUPLERS

DAC-H horizontal discharge bottom couplers are particularly compact, making them ideal for installations in tight spaces.

They have 2 guide pipes which can accompany the pump into its working position, preventing troublesome rotation. If the discharge direction has to be modified, the device can be connected to an ordinary 90° threaded bend.

Technical characteristics

  • Body in EN-GJL-250 cast iron
  • NBR rubber gasket
  • Epoxy-vinyl paint
  • Full free passage
  • DN32-50 models complete with pipe guide, sliding flange (including stainless steel fasteners) and 2" GAS threaded bend in stainless steel
  • Intake DN32 PN6 and DN50 PN10, horizontal discharge GAS 2"
Zenit DAC R couplers

DAC-R

COUPLERS

DAC-R vertical discharge bottom couplers in reinforced version for use with electric pumps weighing more than 1300 kg.
Fixing by means of sliding flange KAF (for models up to discharge DN250) or hook KGP with double guide pipe.
A patented guide pipe connection system that reduces mechanical stresses and simplifies pump release

To ensure sufficient intake and prevent cavitation, on some pump models with high-power motor it may be necessary to increase the distance between the intake port and the bottom of the tank.

Technical characteristics

  • Flanged models from DN100 to DN600
  • Cast iron body
  • Sliding flange KAF in EN-GJL-250 cast iron (models with discharge max DN250)
  • KGP cast iron hook (models with discharge > DN250)
  • Two guide pipes of Ø2" or Ø3"
  • Stainless steel metal fasteners
  • Epoxy-vinyl paint
  • Full free passage
Zenit DAC X couplers

DAC-X

COUPLERS

DAC-X stainless steel bottom couplers particularly suitable for use with DRY pumps.

They allow installation of a completely stainless steel system for resistance to chemically aggressive liquids.

Technical characteristics

  • Flanged models from DN65 to DN100
  • Body and flange in AISI 316 stainless steel
  • NBR rubber gasket
  • Full free passage
  • Recommended for installations with corrosive or saline liquids

Reliability

For plants with large pipelines, Zenit has developed a range of reinforced couplers capable of supporting the weight of particularly heavy pumps.

They come complete with rugged mounting brackets of suitable size and an anchor system consisting of a cast iron hook fixed to a special provided on the pump body, instead of the usual sliding flange connected to the discharge port.

Downloads

Domestic & Residential
Catalogue

Domestic & Residential

Domestic & Residential [60Hz]
Catalogue

Domestic & Residential [60Hz]

Industrial & Civil
Catalogue

Industrial & Civil

Industrial & Civil [60Hz]
Catalogue

Industrial & Civil [60Hz]

Product overview
Catalogue

Product overview

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