Model &Name: P·DZFIII, P·DΣfFIII Series Electric Medium-Temperature Medium-Pressure,High-Temperature 

High-Pressure Drain Valves

Characteristics:Hybrid Integrated Circuit adopted foractuators with a feedback and detection resolution of 

0.4% and self-diagnosingand self-locking function; Bead welding withSTL for plugs and seats and guide 

surfaces to provide a long service life;Horizontal andvertical installation types available; P·DΣfFIII Series drain 

valve is a new generation product with light andingenious, big force, reliable features.

NominalDiameter (DN): 20~50mm

NominalPressure (PN): 1.6, 4.0, 6.4, 17, 70MPa

Power SupplyVoltage: 380VAC, 220VAC

Input/OutputSignal: 4-20mA

AllowablePressure Differential  (MPa):Medium-Temperature Medium-Pressure: same as PN; 

PN17: ≤14; PN70: ≤25.

Material:Medium-Temperature Medium-Pressure: ZG270-500; High-Temperature High-Pressure:12CrMoV

Connection Type: Medium-TemperatureMedium-Pressure: JB/T79-94; High-Temperature High-Pressure: 

Grooved Butt WeldingGB/T12224-2005;text-indent:-36.75pt;mso-char-indentcount:

-3.5'>FlangeStandards:GB/T9113-2000