■ Overview

ZAJP precision small electric single seat regulating valve is composed of DDZ type straight stroke electric actuator and precision small single seat valve. Combined with a servo amplifier, it receives a unified 4-20mA or 0-10mA standard signal, converts the current signal into a corresponding linear displacement, automatically controls the opening of the regulating valve, and achieves continuous adjustment of process parameters such as pressure, flow rate, temperature, and liquid level of the fluid in the pipeline.

Suitable for situations with strict requirements for leakage, low pressure difference before and after valves, and media with certain viscosity and low fiber content.

■ Valve body

Type: Straight through single seat cast ball valve

Nominal diameter: 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200mm

Nominal pressure: PN1.6、4.0、6.4MPa

Flange standard: JB/T79.1-94、 79.2-94, etc

Materials: cast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti), etc

Upper valve cover: standard type -17~+230 ℃, heat dissipation type+230~+450 ℃, low temperature type -60~-196 ℃, bellows seal -40~+350 ℃

Cover type: bolt compression type

Packing: V-shaped PTFE packing, PTFE impregnated asbestos packing, asbestos textile packing, graphite packing

■ Valve components

Valve core type: single seat plunger valve core

Traffic characteristics: equal percentage characteristics and linear characteristics

Materials: Stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti, 17-4PH, 9Cr18, 316L), stainless steel overlay with Stellite alloy, titanium, and corrosion-resistant alloys, etc

■ Executing Agency

Type: Electric actuator (such as DKZ actuator)

Power supply: 220V or 380V

Input signal: 4-20mA or 0-10V · DC

Output signal: 4-20mA · DC

■ Valve action type

Split type (B) or electrically open type (K) valve

■ Attachment

DFD type electric operator, ZPE type servo amplifier

■ Structural images