Product Overview

The ZDLS electric angle single seat regulating valve is a top guided structure regulating valve with a compact valve body structure, smooth flow path, low pressure drop loss, and high flow rate. The valve core has a large guiding area, good seismic resistance, and the valve seat closing performance meets the GB/T4213-92 standard. The regulating valve is equipped with a small, sturdy, and high-precision actuator that accepts proportional action of ON-DFF or 4-20mADC or 1-5V DC signals. This valve is widely used to control high viscosity media, fluids containing particles and mud, flash evaporation fluids, etc. It can avoid coking and blockage, and is easy to self clean and clean. PN220, PN320 nominal pressure angle high-pressure regulating valve is a special valve designed for high-pressure systems that are prone to cavitation.

Standard technical parameters

Valve body

Type: Single seat cast angle valve (forged)

Valve size: DN20~200

Rated pressure: PN16、PN40、PN63、PN220、PN320

Connection form: flange, welding

Flange standard: Steel flanges shall comply with GB9113-2000, JB/T-94

Sealing surface type: PN16 is a convex surface

PN40、 63 is a concave convex surface

PN220 and PN320 are tenon and mortise surfaces

Flange end distance: according to GB12221-89

Material Science: ZG230-450，ZG1Cr18Ni9Ti，ZG1Cr18Ni12Mo2Ti

Cover type: pressure plate type

Packing: V-shaped polytetrafluoroethylene packing, flexible graphite packing

Gasket: Type: Tooth type and Flat type

Material, F4/modified F4, stainless steel+graphite

Executing Agency

Type: Electric actuator

381LSA/XA-08，381LSA/XA-20，381LSB/XB-30，381LSB/XB-50，

381LSC-65，381LSC-99，381LSC-180

Valve function: positive action, negative action

Control action: proportional control or ON-OFF control

Yu input signal: 4~20MADC or 1~5VDC, input signal "off" must be selected

Position of the time regulating valve (hold position, fully open, fully closed)

Power Supply: AC220V,50Hz

Output signal: 4~20mADC (load resistance below 500 Ω)

Power consumption: Type A/50VA, Type B/150VA, Type C/220V

Protection level: IP55

Outgoing connection: ordinary S-type G1/2, explosion-proof X-type G3/4

Environmental temperature: No space heater -10 ℃~+60 ℃

Space heater -35 ℃~+60 ℃

Explosion proof X-type -10 ℃~+40 ℃

Environmental humidity: below 95% for ordinary S-type, 45-85% for explosion-proof X-type

Explosion proof level: ExdII BT4

Overload protection: optional for type A and B, mandatory for type C

Manual device: with handle

Performance

Traffic characteristics: linear, equal percentage

Adjustable range: 50:1

Valve seat leakage rate (for rated Kv value%)

Metal seal: less than 0.01% (ANSI B16.104-1976 Class IV) and less than 0.001% (optional)

Basic error: ± 1%

Return difference: ≤ 1%

Dead zone: ≤ 1%

External dimensions: refer to Table 1

Product weight: Refer to Table 1

Wiring terminal diagram: refer to the user manual of the accompanying actuator

Paint color: The electric actuator of the regulating valve and the surface of the valve should be painted, while stainless steel and copper valves may not be painted. The arrows and text on the valve body are painted red. Users can also specify colors.

External dimensions