Technical Information - Type 'D60' Series

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.
 

 

Dimensions (mm)

Valve Size5080100150200
‘A’120130180220230
‘B’120130180220230
‘C’250360380400510
Mass / kg264060120190

Specifications

FlangesAS 2129 Tables E and F
Working PressureTable E 1400 kPa
Table F 2100 kPa
Temperature Range5 – 60oC

Materials

Body and Cover:Cast Iron AS 1830/T250
Valve Carrier50-300mm Bronze AS 1565/836B
400-610mm Cast Iron AS 1830/T250
Internal PartsBronze AS 1565/836B
Grade 316 Stainless Steel
CoatingsOptional (0.5mm min. D.F.T.)
Valve Disc and SealsPolyurethane, Neoprene
Spindle, Links & Pins316 Stainless Steel
Grade Float ArmSS Tube or Steel-Galvanised
BronzeFloatPlastic, Copper or Coated Steel

Recommended Maximum Flows (l/sec.)

Valve Size5080100150200250300400450500610
Normal Max.
Vel. 6m/sec.
1020408019030043077097011901720
Occasional Max.
Vel. 8m/sec.
1330551102504005701020130015902290

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