A600 Solenoid Control Valve8 of 30 control valvesA900 Automatic Control Valve (Main Valve)

Control Valve

Part of the A900 modular system

A76D Pump Control Valve - Double Chamber

Name: A76D Pump Control Valve - Double Chamber
Brand: Euro Flow Control
SKU: EFC-351

Datasheet

Download datasheet (PDF)

Specifications are indicative. Final specification is confirmed at quotation.

Specifications

Confirmed at quote

Size Range: DN50 to DN800
Pressure Class: PN10, PN16, PN25, Class 125, Class 150
End connection: Flanged (FF, RF)
Operating temperature: 10°C to 80°C

Standards

Design & manufacture: EN 1074-5, BS EN 1074-5
Inspection & test: EN 12266-1
Face to face: EN 558-1

Configure your variant(manually adjust box on the right if you require a different spec)

Size
Pressure
End connection

Materials

All available material options per part. Click a pill to set it in the configurator.

Body
Bonnet
Seat
Stem
Ball Valve
Bottom Disc Holder
Bottom Seat Retainer
Bush
Cap
Caulking Nut
Diaphragm
Eye Bolt
Fixing Holder
Limit Switch
Middle Body
Needle Valve
O Rings
Plug
Screw
Seals
Solenoid Valve
Spring Washer
Strainer
Three Way Accelerator
Tube
Upper Disc Holder
Upper Seat Retainer
Washer

Pressure-temperature rating

Maximum working pressure at each temperature, per pressure class.

Class	Pressure	Min temp	Max temp
PN10	10 bar	10°C	80°C
PN16	16 bar	10°C	80°C
PN25	25 bar	10°C	80°C

Dimensions per size(16 sizes)

Size	L (mm)	H (mm)	OD_PN10 (mm)	OD_PN16 (mm)	OD_PN25 (mm)	OK_PN10 (mm)	OK_PN16 (mm)	OK_PN25 (mm)	OB_PN10 (mm)	OB_PN16 (mm)	OB_PN25 (mm)	Model Code	Weight
DN50	230	169	165	165	165	125	125	125	99	99	99	A900-0050	—
DN65	290	189	185	185	185	145	145	145	118	118	118	A900-0065	—
DN80	310	209	200	200	200	160	160	160	132	132	132	A900-0080	—
DN100	350	244	220	220	235	180	180	190	156	156	156	A900-0100	—
DN125	400	309	250	250	270	210	210	220	156	156	156	A900-0125	—
DN150	480	368	285	285	300	240	240	250	211	211	211	A900-0150	—
DN200	600	442	340	340	360	295	295	310	266	266	274	A900-0200	—
DN250	730	526	405	405	425	350	355	370	319	319	330	A900-0250	—
DN300	850	586	460	460	485	400	410	430	370	370	389	A900-0300	—
DN350	980	656	520	520	555	460	470	490	429	429	448	A900-0350	—
DN400	1100	770	580	580	620	515	525	550	480	480	503	A900-0400	—
DN450	1200	780	640	640	670	565	585	600	530	548	548	A900-0450	—
DN500	1250	890	715	715	730	620	650	660	582	609	609	A900-0500	—
DN600	1450	1050	840	840	845	725	770	770	682	720	720	A900-0600	—
DN700	1650	1185	910	910	960	840	840	875	682	720	720	A900-0700	—
DN800	1850	1310	1025	1025	1085	950	950	990	901	901	928	A900-0800	—

* DN125 and DN350 use the same internals as DN100 and DN300 respectively.

* DN450 and DN700 use the same internals as DN400 and DN600 respectively.

* AISI 304 is the factory standard stainless steel grade; consult the factory for AISI 316.

Technical drawings(6 pages)

Operating media

Clean waterTreated water

Typical applications

Pump discharge surge protection
High lift pumping stations
Long rising mains
Water supply booster stations

Coatings

Fusion bonded epoxy

Approvals

ISO 9001

Features

The A76D double-chamber pump control valve provides active surge protection on both pump start and pump stop
On pump start, the valve opens in a controlled two-stage sequence to prevent startup surge
On pump stop, it closes slowly to arrest the decelerating water column before the pump reverses
The dual-chamber design provides greater control authority and damping than single-chamber valves
A76D is a double-chamber pump control valve series which minimises headloss because the valve can be fully open during normal operation
Simple, reliable and easy to install and maintain
Nylon-reinforced diaphragm for long service life
Stainless steel seat to avoid corrosion
Guided stem movement for reliable performance
Fusion-bonded epoxy coating for rust prevention

Description

The A76D is a pump control configuration of the A900 main valve body with a double-chamber actuator. The dual-chamber design provides independent hydraulic control of opening and closing rates, allowing the valve to open slowly on pump start to limit inrush and close in a controlled deceleration profile on pump stop to prevent surge. Needle valves in each chamber circuit allow both rates to be set independently in the field to match the specific pump and pipeline hydraulics.

Selection notes

This control valve is supplied for flanged installation.

Sizes run DN50 to DN800, in PN10, PN16, PN25, Class 125, Class 150.

The body is EN-GJS-500-7.

Seat and trim options are AISI 304. The seat, not the body, usually sets the temperature and medium limit, so confirm it against the service before ordering.

Stated service media include clean water and treated water.

It is catalogued for Water & Wastewater.

Working temperature is 10°C to 80°C.

Built to EN 1074-5, BS EN 1074-5, EN 558-1, EN 12266-1 and EN 1092-2.

Supplier remarks

Two internal check options are selectable: Option 1, quick close 100%; Option 2, blocks 90% of the flow area quickly then closes slowly through the last 10% of stroke (DN50-DN150 is slow-closing only). PLC/solenoid sequence: the 4-2 solenoid actuates the 7-2 accelerator to connect the upper chamber to the valve outlet; the 4-1 solenoid actuates the 7-1 accelerator to fill the middle chamber and push the diaphragm to the top position; the PLC can set a delay timer on solenoid actuation to avoid water hammer. Fail-safe: if electricity is lost, the valve performs as a check valve to prevent backflow. The A76D includes two 3-way latching solenoid valves. Standards stated: BS EN1074-5, EN12266-1, EN558-1, EN1092-2. Head Loss Curve (A900 Headloss chart, DN50-DN800) is stated as a curve, not tabulated points, so not reproduced here.
This model uses its own dedicated body (three size-specific parts lists in the source: A90D-Main Valve DN50-150, A70D Main Valve DN200-350, A70D Main Valve DN400-800), not the standard A900 body.

Available pressure classes

Pressure classes this product is rated to.

PN10 PN16 PN25 Class 125 Class 150

Used in

Water & Wastewater

Related guides

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Size

Available: DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600, DN700, DN800

Pressure

Available: PN10, PN16, PN25, Class 125, Class 150

End connection

Actuation

Manual and gear operation ships with the valve. Powered actuation is sourced locally by the buyer.

Required approvals

None required

We confirm the certification with the manufacturer before quoting

Body

Available: EN-GJS-500-7

Seat

Available: AISI 304

Stem

Available: AISI 304

Plug

Available: AISI 304

Additional parts (optional)

Bonnet

Available: GJS500-7 (GGG50)

Ball Valve

Available: SUS304

Bottom Disc Holder

Available: 2 options

Bottom Seat Retainer

Available: 2 options

Bush

Available: C61900

Cap

Available: GJS 500-7

Caulking Nut

Available: A4

Diaphragm

Available: EPDM+Nylon

Eye Bolt

Available: Carbon Steel

Fixing Holder

Available: GJS 500-7

Limit Switch

Available: commercial

Middle Body

Available: GJS 500-7

Needle Valve

Available: SUS304

O Rings

Available: NBR

Screw

Available: A2

Seals

Available: EPDM

Solenoid Valve

Available: commercial

Spring Washer

Available: AISI 304

Strainer

Available: SUS304

Three Way Accelerator

Available: SUS304

Tube

Available: SUS304

Upper Disc Holder

Available: 2 options

Upper Seat Retainer

Available: 2 options

Washer

Available: AISI 304

Notes for the quote

Quantity

Your variant details are attached. Submit any time from My RFQ.

Smart find

A900 configurations

View full A900 system →

This product is part of the A900 modular system. All configurations share the same hydraulically operated body: the control function is set by the pilot valve(s) attached. An existing A900 body in the field can be reconfigured for a different duty simply by swapping the pilot, without replacing the body.

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DN50 to DN800

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DN50 to DN800

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DN50 to DN800

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DN40 to DN50

R900 Main Valve - Reduced Bore

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Pilot assembly & accessories

Compatible accessories

Needle Valve

Adjusts response speed and damps oscillation in the pilot circuit

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