Euro Flow Control
A800 Pressure Differential Valve23 of 30 control valvesD200 Direct Membrane Pressure Reducing Valve
Control Valve
Part of the A900 modular system

A900 Automatic Control Valve - Threaded

Datasheet

Download datasheet (PDF)

Specifications are indicative. Final specification is confirmed at quotation.

Specifications

Confirmed at quote
Size Range
DN40 to DN50
Pressure Class
25 bar max (PN25)
End connection
Threaded
Operating temperature
-10°C to 80°C

Standards

Design & manufacture
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
Spring
Bolt
Bush
Caulking Nut
Diaphragm
Disc Holder
Fixing Holder
O Rings
Plug
Screw
Seal
Seat Retainer
Washer
Dimensions per size(2 sizes)
SizeL (mm)H (mm)Thread SizeModel CodeWeight
DN402301771-1/2"A900-0040-BP
—
DN502301772"A900-0050-BP
—

* Model code suffix denotes thread type: BP = BSPT, NP = NPT (dimensions identical for both).

Technical drawings(1 page)

Operating media

Water

Typical applications

  • Building services
  • Irrigation
  • Small diameter pressure control
  • Commercial installations

Approvals

WRASISO 9001

Features

  • The A900 threaded is the small-diameter version of the A900 main valve body, with threaded BSP end connections for DN15 - DN50 installations

Description

The A900 threaded is the small-diameter version of the A900 main valve body, with threaded BSP end connections for DN15 - DN50 installations. Used with the same pilot family as the flanged A900, the threaded body provides pressure reducing, sustaining and level control functions in compact plant rooms, building services installations and irrigation systems where flanged connections are impractical.

Selection notes

This control valve is supplied for threaded installation.

Sizes run DN40 to DN50, in 25 bar max (PN25).

The body is EN-GJS-500-7.

Seat and trim options are AISI 304 and 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 and HVAC.

Working temperature is -10°C to 80°C.

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

Used in

Water & WastewaterHVAC

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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