Valve core

4105型气动V型调节球阀

Soft seal

Packing restrainer

Valve body

Packing gland

152

Product

BAIC GROUP

4105 Type Pneumatic V-Shape Regulating Ball Valve

Pneumatic V-shape piston regulating ball valve (referred to as regulating ball valve), is a rotary

regulating ball valve, it is an actuator unit in a pneumatic unit combination instrument, generally used in

conjunction with the electrical valve positioner or pneumatic valve positioner. There are two types of valve

structures: installed reinforced PTFE soft seal seat and 1Cr18Ni9 or OCr18Ni12Mo2 (Ti) partially build-up

welding Stellite alloy all-metal hard seal valve seat. They are used respectively for normal temperature (-40~

2000C) and high temperature (-60~4500C) occasions. This product is characterized by high transmission

efficiency, large thrust, good sealing performance, large rated flow coefficient and strong interchangeability of

parts. Because of the valve core and seat closed with \"shear\" effect, they can be especially used for media

containing fibrous filaments, particles, or extremely high viscosity and other working conditions. Thus, it is

widely used in papermaking, petroleum, chemical, pharmaceutical, metallurgy, textile, sewage treatment and

other production sectors gas, steam, liquid transport pipeline medium flow, pressure, liquid level, temperature

regulation, in order to achieve automation of the control process in the production process according to

certain specifications.

Structure and action principle

The regulating ball valve is mainly composed of pneumatic piston actuator and partially spherical

regulating ball valve with V-cut, its structure is shown in the following figure

Valve seat

Clamping ring

Hard seal

Packing

Valve stem

Valve stem bearing

Valve stem

Valve body

Clamping ring

Valve seat

Valve core

Valve core

Valve seat

Clamping ring

Valve core bearing

Sealing gasket

Main parameters, performance indicators

Nominal diameter DN (mm) 25 32 40 50 65 80 100 125 150 200 250 300

Rated flow coefficient (kv) 25 50 70 100 180 270 440 680 990 1760 2750 3900

Nominal pressure PN

Mpa 1.6,2.5,4.0,6.4(6.3)/2.0,5.0,11.0

Bar 16,25,40,64(63)/20,50,110

Lb ANSI:Class150, Class300, Class600

Flow characteristics Approximate equal percentage

Valve core angle (degrees) 0°±3° to 90°±3° (adjustable)

Operating pressure (MPa) Double action 0.4~0.8 Single action 0.4~1.0

Applicable operating

temperature (℃)

Soft seal; PTFE (-30~150), reinforced PTFE (-40~200), PPL (-40~300), hard seal -250~450

Allowable differential pressure

(MPa) is the medium operating pressure

Allowable leakage amount

level Soft seal Class VI (or no leakage) Hard seal Class IV

Action time (S) 0.5~7 (see attached table for details)

Actuator output torque(Nm) 5.9~8000

Actuator operating pressure 0.4—0.7Mpa

153

Product

BAIC GROUP

Main parts materials

Outline dimensions

Part Name Material Part Name Material

Valve body

ZG1Cr18Ni9(Ti)

ZGOCr18Ni12Mo2(Ti)

ZG230-450

Valve seat

(sealing ring)

PTFE (reinforced)

1Cr18Ni9 (hard seal)

0Cr18Ni12Mo2Ti

Valve stem 2Cr13

0Cr17Ni4Cu4Nb Clamping ring 0Cr17Ni12Mo2 1Cr18Ni9(Ti)

Valve core ZG1Cr18Ni9(Ti)(chrome plated)

ZGOCr18Ni12Mo2(Ti)(chrome plated) Packing PTFE

Flexible graphite

Valve stem bearing 0Cr17Ni12Mo2 Bracket ring Fluoroelastomer o-rings/metal seal

rings

Nominal

diameter Actuator

Flange according to GB9113-2000, taking actuator imported from Italy AT as a sample (can

also match other actuators) valve structure length according to GB12221.

Manufacturing with other standards (ANSI APIJIS) are available upon user request.

154

Product

BAIC GROUP

Optional accessories

1. Electrical valve positioner, air filtration decompresser (air source treatment triplet part)

2. Solenoid valve (voltage, whether explosion-proof)

3. Limit switch (transponder), valve position transmitter

4. Holding valve

5. Handwheel

Ordering information

· Product name, model

· Nominal diameter, nominal pressure, medium name, medium operating temperature

· Valve action mode: air-to-open or air-to-close

· Actuator type: double-action or single-action (spring reset), domestic or imported, with

or without handwheel

· Material requirements for valve body and valve inner parts

· Other matching accessories

Technical parameters are subject to change without notice!