Electric sleeve control valve

Electric sleeve control valve consists of a straight-travel electric actuator and a globe valve body. With built-in servo unit for receiving the signal of 4-20mA or 1-5VDC, and transform the current signal into corresponding straight travel displacement, automatically modify the opening of the valve to continuously control the pressure, flow rate, temperature and liquid level in the pipeline, Temperature, level and other process parameters of continuous adjustment.

   Electric sleeve control valve is widely used because of its good stability and easy maintenance. It can be designed into the balance type to eliminate the static imbalance force on the valve disc, and has a certain damping effect, which can reduce the vibration caused by the fluid flow, which can service process condition of large differential pressure.

Enquiry

Valve body structure

1-Body,   2- Gasket,   3-Valve plug,   4-Bushing   5- Gasket,   6-Bonnet,   7- Packing
8- Packing bushing,   9- Gland,   10-Stem,   11-Hex nut,  12-Stud
13- Hex nut,   14-Stud

Main technical data

Body

Type

globe valve, Single-seat with sleeve

Size (DN)

DN25 ~ DN300 mm

Pressure rating

PN16 – PN100 / CL150LB, CL300LB, CL600LB,

Flange standard

JB/T79.1-94、79.2-94、ANSI B16.5

Body material

WCB,CF8,CF8M

Bonnet structure

option

Standard type: (-5 ~ 230 ℃), Heat dissipation type:(-45 ~ 230 ℃),

Low temperature type:(-196 ~ -45 ℃),Bellow sealed type

Bonnet type

Bolted

Packing

V-type PTFE / flexible graphite

Trim structure

Single-seat with sleeve / plunger disc

Trim material

Seat & Plug: SS304/SS316 surfacing welding Stellite, 

Shaft: SS304/SS316

Flow characteristic

Equal percentage / Linear

Note: performance listed base on the packing material in PTFE

 

Performance

Flow characteristic

Linear,  percentage

Allowable range

50:1

Rated Cv value

Percentage CV10 ~ 1400, Linear CV11 ~ 1500

Leakage grade

Metal seal: II grade ( 0.5% rated capacity )

Soft seal: V grade (leakage standard: GB/T 4213)

Allowable tolerance

±1.0 %

Return difference

≤1.0 %

Dead Zone

≤1.0 %

Difference from beginning to end point

±2.5 %

Rated travel difference

≤2.5 %

Note: performance listed base on the packing material in PTFE

 

Actuator

Type

Electric actuator, intelligent integrated

Usage

regulating

Power supply

220VAC ±10 % 50Hz, 380VAC ±10 % 50Hz,

Input signal

4-20mA.DC

Action to close

Input signal increase, valve stem descend, valve close

Action to open

Input signal increase, valve stem ascend, valve open

Lag

≤0.8 %FS

Linear type

≤1 %FS

Environmental temperature

Standard type: -10℃~+60℃

With space heater: -35℃~+60℃

Explosive proof: -10℃~+40℃