Euro Flow Control
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Control Valve
Part of the A900 modular system

A100 Modulating Float Control Valve

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
End connection
Flanged
Operating temperature
-10°C to 80°C

Standards

Design & manufacture
EN 1074-5, BS EN 1074-5
Inspection & test
ISO 5208, BS EN 12266-1
Face to face
BS 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
Bolts
Bush
Diaphragm
O Rings
Seal
Seat Retainer

Pressure-temperature rating

Maximum working pressure at each temperature, per pressure class.

ClassPressureMin tempMax temp
PN2525 bar-10°C80°C
Dimensions per size(16 sizes)
SizeL (mm)H (mm)PN10 ØD (mm)PN16 ØD (mm)PN25 ØD (mm)PN10 ØK (mm)PN16 ØK (mm)PN25 ØK (mm)PN10 N-Ød (mm)PN16 N-Ød (mm)PN25 N-Ød (mm)PN10 ØB (mm)PN16 ØB (mm)PN25 ØB (mm)Weight
DN502301771651651651251251254-Ø194-Ø194-Ø19999999
—
DN652902021851851851451451454-Ø194-Ø198-Ø19118118118
—
DN803102192002002001601601608-Ø198-Ø198-Ø19132132132
—
DN1003502432202202351801801908-Ø198-Ø198-Ø23156156156
—
DN1254002432502502702102102208-Ø198-Ø198-Ø28156156156
—
DN1504803332852853002402402508-Ø238-Ø238-Ø28211211211
—
DN2006004283403403602952953108-Ø2312-Ø2312-Ø28266266274
—
DN25073047840540542535035537012-Ø2312-Ø2812-Ø31319319330
—
DN30085053846046048540041043012-Ø2312-Ø2816-Ø31370370389
—
DN35098055052052055546047049016-Ø2316-Ø2816-Ø34429429448
—
DN400110071058058062051552555016-Ø2816-Ø3116-Ø37480480503
—
DN450120072064064067056558560020-Ø2820-Ø3120-Ø37530548548
—
DN500125082271571573062065066020-Ø2820-Ø3420-Ø37582609609
—
DN600145088584084084572577077020-Ø3120-Ø3720-Ø40682720720
—
DN700165091091091096084084087524-Ø3124-Ø3724-Ø43682720720
—
DN8001850126010251025108595095099024-Ø3424-Ø4024-Ø49901901928
—

Operating media

Water

Typical applications

  • Service reservoirs
  • Water towers
  • Break pressure tanks
  • Storage tanks

Coatings

Rubber lined

Approvals

WRASISO 9001

Features

  • The A100 is a hydraulically operated modulating float control valve for reservoir and tank level management
  • A float pilot senses water level and progressively opens or closes the main valve to maintain a set level
  • Smooth modulating action prevents water hammer and eliminates the pressure surge associated with simple on/off ball float valves
  • Suitable for service reservoirs, break pressure tanks and storage facilities

Description

The A100 is a modulating float level control valve built on the A900 main valve body, paired with a P100 float pilot assembly. As water level rises the pilot progressively closes the main valve; as level falls it reopens, maintaining a stable set level without the pressure surge of on/off ball float valves. Used on service reservoirs, break pressure tanks and storage facilities. The A900 body can be repiloted in the field for pressure reducing, flow control or pump control duty without body replacement.

Selection notes

This control valve is supplied for flanged installation.

Sizes run DN50 to DN800, in PN10, PN16, PN25.

The body is EN-GJS-500-7.

Seat and trim options are Stainless Steel AISI 304 and Stainless Steel AISI 316. The seat, not the body, usually sets the temperature and medium limit, so confirm it against the service before ordering.

Stated service media include water.

It is catalogued for Water & Wastewater.

Working temperature is -10°C to 80°C.

Built to EN 1074-5, BS EN 1074-5, BS EN 558-1, ISO 5208 and BS EN 12266-1.

Available pressure classes

Pressure classes this product is rated to.

PN10PN16PN25

Used in

Water & Wastewater

Related guides

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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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Pilot assembly & accessories

Pilot assembly

P100 Float Pilot

Modulating float pilot: senses reservoir level and progressively opens/closes the main valve

Compatible accessories

Needle Valve

Adjusts response speed and damps oscillation in the pilot circuit

Float Valve Switch

Provides electrical level signal for alarm or SCADA telemetry

Related Control Valves

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Type
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Size
DN50 to DN800
Pressure
PN10, PN16, PN25
Body
EN-GJS-500-7
Standards
EN 1074-5, BS EN 1074-5
Add variant details

Adds to your quote request, not a purchase. Refine size, pressure and material before submitting.

A203 Pressure Reducing with Check ValveControl ValveREF 346

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Type
Control Valve
Size
DN50 to DN800
Pressure
PN10, PN16, PN25
Body
EN-GJS-500-7
Standards
BS EN 1074-5, BS EN 558-1
Add variant details

Adds to your quote request, not a purchase. Refine size, pressure and material before submitting.

A300 Slow Control Check ValveControl ValveREF 347

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Type
Control Valve
Size
DN50 to DN800
Pressure
PN10, PN16, PN25
Body
EN-GJS-500-7
Standards
EN 1074-5, BS EN 1074-5
Add variant details

Adds to your quote request, not a purchase. Refine size, pressure and material before submitting.

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Type
Control Valve
Size
DN50 to DN800
Pressure
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Body
EN-GJS-500-7
Standards
EN 1074-5, BS EN 1074-5
Add variant details

Adds to your quote request, not a purchase. Refine size, pressure and material before submitting.