Valve Catalogue » Level Control Valves » Fig. 145 Float Valve

Type 'D60' Series Fig. No. 145

The ‘ROMA’ Type ‘D60’ Float Valve is hydraulically operated, single seated, piston actuated, internal pilot and float controlled.

At full supply level, inlet pressure is retained within the piston chamber by the pilot valve, equalising pressures across the piston, and permitting inlet pressure to close the valve.

As supply level falls, the pilot valve discharges internal pressure allowing inlet pressure within the valve to act upon the larger piston area to lift the valve to a modulating opening.

The angle type Fig. No. 145A valve is ideally suitable for end of line services in make-up water and service water tanks, etc., whereas the globe type Fig. No. 145 in the larger sizes are used for surface reservoirs.

Water supply authorities and industry throughout Australia accept the robust reliable design and construction which utilises proven materials.

Specifications

Flanges:    AS 2129 Tables E and F
Working Pressure:  Table E 1400 kPa
Table F 2100 kPa
Temperature Range:  5 - 60°C

Materials

Body and Cover:  Cast Iron AS 1830/T250
Valve Carrier:  50-300mm Bronze AS 1565/836B
400-610mm Cast Iron AS 1830/T250
Internal Parts: Bronze AS 1565/836B
Grade 316 Stainless Steel
Coatings:   Epoxy Paint
(0.5mm min. D.F.T.)
Valve Disc and Seals: Polyurethane, Neoprene
Spindle, Links & Pins: Grade 316 Stainless Steel
Float Arm:   Bronze/SS Tube or Steel-Galvanised
Float:     Plastic, Copper or Coated Steel

Dimensions (mm)

Valve Size

50

80

100

150

200

250

300

400

450

500

610

‘A’

240

290

355

445

610

760

915

1220

1370

1525

1675

‘B’

80

110

140

165

205

230

330

400

430

500

510

‘C’

215

330

310

400

440

555

600

700

750

825

990

‘D’

165

190

230

310

380

450

580

710

800

900

960

Mass/kg

30

40

60

125

260

450

700

1350

1700

2100

2700

 

Recommended Maximum Flows (l/sec.)

Valve Size (mm)

50

80

100

150

200

250

300

400

450

500

610

Normal Max.
Vel. 6m/sec.

10

20

40

80

190

300

430

770

970

1190

1720

Occasional Max.
Vel. 8m/sec.

13

30

55

110

250

400

570

1020

1300

1590

2290