Altitude Control Valve (FIG BT127)

Datasheet

Specifications are indicative. Final specification is confirmed at quotation.

Pressure Class

6 bar, 10 bar, 16 bar, 20 bar, 25 bar, 40 bar, 64 bar, 100 bar

Standards

Materials

GJS 500-7 (ductile iron body, bonnet), AISI 304/316 (seat, stem, plug, spring), EPDM + Nylon Fabric (diaphragm), EPDM (seal), NBR (O-rings), C61900 (bronze bush), A2/A4 (bolts, screws)

Materials

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

Body

Ductile Iron

Typical applications

• Water towers
• Elevated storage tanks
• High-level reservoirs
• Standpipes

Approvals

Features

• Remote hydrostatic sense line to the base of the tank derives water level without a float mechanism inside the structure
• Closes when reservoir level reaches the pilot set-point; opens approximately 300 mm below set-point
• Two-way version (BT127-2) also allows tank discharge when tank head pressure exceeds valve inlet pressure
• Fully hydraulic operation: no electrical power required
• Adjustable ranges: 1.5-6 m, 3-22 m, 15-60 m (one-way); 1-5 m, 5-12 m, 10-32 m, 22-40 m (two-way)

Description

The FIG BT127 altitude control valve provides automatic filling of elevated tanks and reservoirs using a remote hydrostatic sense line connected to the bottom of the tank. When the altitude control senses a drop in level below the set-point the valve opens to fill the tank; when the level reaches the set-point the valve closes. Available in one-way (tank fill only, FIG BT127-1) and two-way (tank fill and discharge, FIG BT127-2) configurations. The fully hydraulic design requires no float mechanism inside the structure and no electrical power.

Used in

Related guides

• Choosing a valve type: gate, globe, butterfly, ball, check
• How to read a valve datasheet
• Pressure ratings: PN, ANSI Class and JIS K compared
• Submitting an effective RFQ