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Drinking water network equipment

Valves, air valves, couplings, flow straighteners, fire hydrants and service connection equipment, from DN15 to DN2000.

DN15 to DN2000

From individual service connections to transmission mains.

PN10 to PN40

Pressure ratings for every level of the network.

EN, ISO, DIN standards

EN 1074, EN 593, EN 1092-2, EN 14384, ISO 2531…

Epoxy-coated ductile iron

Epoxy coating for a long service life in contact with water.

Valves & check valves

Isolation, regulation and protection against backflow.

Resilient-seated flanged gate valve with handwheel
DN50 to DN800PN10 · PN16 · PN40

Resilient-seated flanged gate valves

Ref. EAU-001

Full-bore isolating valve for transmission and distribution networks.

  • Design DIN 3352 / EN 1074
  • Face-to-face DIN 3202 F4 and F5 (EN 558-1)
  • Flanges to EN 1092-2
  • Ductile iron body (PN10/16) or steel (PN40)
  • Ductile iron wedge, EPDM encapsulated
  • Epoxy coating, 250 µm minimum
  • Stem sealing by O-rings replaceable under pressure
Datasheet
Rising stem gate valveGate valves with extension spindleMotorized gate valveGate valve to KS standard
On request

Gate valves: special versions

Ref. EAU-002

  • Rising stem, with visual position indication
  • Extension spindle for buried valves
  • Motorized with electric actuator
  • Model to Korean standard (KS)
Datasheet
Double-flanged concentric butterfly valve with gearbox
DN80 to DN2000PN16

Double-flanged concentric butterfly valves

Ref. EAU-003

Isolation or regulation: distribution networks, pumping and treatment stations, irrigation.

  • Design EN 593
  • Face-to-face DIN 3202 F4
  • ISO 5211 top flange for actuation
  • Ductile iron GGG50 body and disc
  • AISI 420 stainless steel shaft
  • EPDM liner, bubble-tight shut-off
  • Manual gearbox with handwheel
Datasheet
Wafer-type dual-plate check valve
DN50 to DN700PN10 · PN16

Dual-plate check valves

Ref. EAU-004

Prevents reverse flow, compact wafer design between flanges.

  • Design BS 5153, EN 12334, API 609
  • Face-to-face EN 558 series 16
  • Drilling BS 4504, DIN 2501, ANSI B16.1
  • Ductile iron EN-GJS-400-15 body and plates (stainless steel optional)
  • Stainless steel shaft and spring
  • NBR or PTFE sealing
Datasheet

Air valves

Air management in pipelines to prevent head losses and water hammer.

Flanged single-function air valve
DN40 to DN300PN16

Single-function air valves

Ref. EAU-005

Release of air accumulated at high points of pipelines in service.

  • Design EN 1074-4
  • Flanges to EN 1092-2
  • Tests EN 12266-1: 25 bar body, 18 bar seat
  • Ductile iron EN-GJS-450 body, epoxy coating
  • ABS float, EPDM seat
Datasheet
Flanged triple-function air valveTriple-function air valve, side view
DN40 to DN300PN16 · PN40

Triple-function air valves

Ref. EAU-006

Air release in service, air discharge during filling and air intake during draining.

  • Design EN 1074-4
  • Face-to-face DIN 3202 (EN 558-1)
  • Flanges to EN 1092-2
  • Tests EN 12266-1
  • Ductile iron body, epoxy coating
  • EPDM seals
Datasheet

Couplings & joints

Connection, adaptation and repair of PVC, HDPE and ductile iron pipes.

Flange adaptor for PVC pipe
DN40 to DN300PN10 · PN16

Flange adaptors for PVC pipes

Ref. EAU-007

  • PVC pipes from Ø40 to Ø315 mm
  • Design ISO 2531, EN 12842, ISO 4422
  • Drilling EN 1092-2 PN10/16
  • Ductile iron body, powder epoxy 250 µm min.
  • EPDM gasket
  • Quick and easy installation
Datasheet
Flange adaptor for HDPE pipe with locking ring
DN40 to DN300PN10 · PN16

Flange adaptors for HDPE pipes

Ref. EAU-008

  • HDPE pipes from Ø40 to Ø315 mm
  • Brass locking ring
  • Drilling EN 1092-2 PN10/16
  • Ductile iron body, powder epoxy 250 µm min.
  • EPDM gasket
Datasheet
Flanged self-restrained dismantling joint
DN40 to DN2000PN10 · PN16 · PN25

Self-restrained dismantling joints

Ref. EAU-009

Makes it easy to install and remove flanged valves by compensating for pipeline gaps.

  • Axial adjustment of ±25 mm
  • Ductile iron body, epoxy coating
  • EPDM gasket
  • Corrosion-resistant steel bolting
Datasheet
Gibault joints of various diameters
Ø63 to Ø315PN10 · PN16

Gibault joints

Ref. EAU-010

Connection or repair of pipelines: water supply, irrigation, sewerage.

  • Pipes from Ø63 to Ø315 mm
  • GS 500-7 ductile iron, blue electrostatic epoxy
  • EPDM gasket, steel bolting
  • Design to DIN / EN
Datasheet

Flow straighteners

For reliable measurement upstream of water meters and flowmeters.

Flanged S-3D flow straightener
DN50 to DN200PN10 · PN16

S-3D flow straighteners

Ref. EAU-011

Reduces disturbances caused by bends, valves or reducers upstream of a water meter.

  • Ductile iron body, epoxy coating
  • Flanges drilled to EN 1092-2
  • Lengths from 150 to 600 mm depending on DN
Datasheet
RJ-1 tube-bundle flow straightener
DN250 · DN300PN16

RJ-1 flow straighteners

Ref. EAU-012

Reduces turbulence for reliable measurement by downstream equipment.

  • Steel body, epoxy coating
  • Flanges drilled to EN 1092-2
  • Length 500 mm
Datasheet

Fire protection

Red fire hydrant with above-ground outlets
DN100PN16

Fire hydrants

Ref. EAU-013

Above-ground outlets for connecting fire-fighting equipment to a pressurized network.

  • Manufactured to EN 14384 and EN 1092-2
  • Flange drilling ISO PN10/16
  • Symmetrical couplings
  • 30x30 operating square
  • Regulatory red colour
  • Built-in drain valve
Datasheet

Service connection equipment

Everything needed for customer service connections, from the tapping point to the meter.

Meter inlet valveMeter outlet valveTapping valve
DN15 to DN40PN16

Service connection valves

Ref. EAU-014

  • Meter inlet, meter outlet and tapping valves
  • Brass body, over 58% copper
  • Angle or straight models
  • DN15 to DN40, connections Ø25 to Ø50
Datasheet
Polypropylene tapping saddle
PN16

Tapping saddles

Ref. EAU-015

  • Polypropylene body, stainless steel reinforcing ring
  • Treated steel or stainless steel bolts
  • For PVC and PE pipes
Datasheet
Ductile iron surface boxRiser box for extension tube

Surface boxes and riser boxes

Ref. EAU-016

  • Ductile iron surface boxes, black paint, several sizes
  • Square riser boxes for Ø90 extension tube
Datasheet
SMC polyester water meter box

Water meter boxes

Ref. EAU-017

  • Glass fibre reinforced polyester (SMC)
  • Meter mounting brackets
  • Triangular key lock
  • Pre-formed pipe entries
  • Customizable logo
Datasheet

No product in this family.

Equipment for drinking water transmission and distribution networks

Volta Power supplies water utilities, municipalities, engineering consultancies and water works contractors with the equipment needed to build and maintain drinking water networks, from transmission mains to customer service connections, in Morocco and West Africa.

Our range covers network valves (resilient-seated gate valves from DN50 to DN800, butterfly valves up to DN2000, dual-plate check valves), single- and triple-function air valves for air management in pipelines, connection fittings (flange adaptors for PVC and HDPE pipes, self-restrained dismantling joints, Gibault joints), flow straighteners installed upstream of meters, and DN100 fire hydrants.

For customer service connections, we offer brass meter inlet and outlet valves, tapping saddles, surface boxes, riser boxes and water meter boxes. Ductile iron equipment is protected by an epoxy coating and designed to EN, ISO and DIN standards (EN 1074, EN 593, EN 1092-2, EN 14384…). The full catalogue can be downloaded as a PDF.

Frequently asked questions

Gate valve or butterfly valve: which one to choose?

The gate valve offers full bore: it is ideal for isolating distribution networks from DN50 to DN800. The butterfly valve, more compact and lighter, suits large diameters (up to DN2000), pumping and treatment stations, and can also be used for regulation.

What is an air valve used for in a water network?

It releases the air that accumulates at high points of pipelines, which reduces flow and promotes water hammer. A triple-function air valve also discharges air during filling and lets air in during draining, protecting the pipeline against vacuum.

Are flange adaptors suitable for HDPE pipes?

Yes. We offer a version for PVC pipes and a version for HDPE pipes fitted with a brass locking ring, for outside diameters from 40 to 315 mm, in PN10 or PN16.

A water supply or distribution project?

Send us your bill of quantities or your requirements: we will reply quickly.