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Shanghai Yuhu Self Control Valve Co., Ltd
VQ647, VQ677 Pneumatic V-shaped Ball Valve
NegotiableUpdate on 04/07
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Overview
VQ647, VQ677 Pneumatic V-shaped Ball Valve Pneumatic V-shaped Regulating Ball Valve (with YT Positioner) Pneumatic V-shaped Ball Valve (Standard Type) I. Overview of Pneumatic V-shaped Ball Valve Products The pneumatic V-shaped ball valve produced by Shanghai Yuhu Company is an advanced control valve with a right angle rotary structure. It is used in conjunction with a valve positioner to achieve proportional adjustment; Used in conjunction with a two position five way solenoid valve and control box, it can achieve switch control
Product Details
VQ647, VQ677 Pneumatic V-shaped Ball Valve
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| Pneumatic V-shaped regulating ball valve (equipped with YT locator) | Pneumatic V-shaped ball valve (standard type) |
1、 Overview of Pneumatic V-Ball Valve Products
The pneumatic V-ball valve produced by Shanghai Yuhu Company is an advanced control valve with a right angle rotary structure. It is used in conjunction with a valve positioner to achieve proportional adjustment; Used in conjunction with a two position five way solenoid valve and control box, it can achieve switch control. The pneumatic V-shaped ball valve core is designed with a specially shaped V-shaped notch, which has precise flow characteristics and control functions, suitable for various control occasions, compact structure, small volume, and can be installed in a tight position. Pneumatic V-shaped regulating ball valve is suitable for controlling gas, liquid, and solid granular media. Due to the seamless rotation between the valve core and valve seat, it has great shear force and self-cleaning performance, especially suitable for controlling suspensions and solid particles containing fibers or small solid particles. Therefore, the pneumatic V-shaped ball valve can be widely used in the self-control systems of industrial sectors such as petroleum, chemical, papermaking, chemical fiber, power, metallurgy, pharmaceuticals, and environmental protection.
2、 Product features of pneumatic V-shaped ball valve
(1) The pneumatic V-ball valve consists of a pneumatic V-ball valve body, a pneumatic actuator, and other accessories. It is an advanced control valve with a right angle rotary structure. The V-shaped ball valve does not require repair for a long time and has a long service life, providing you with a truly efficient valve for controlling process conditions.
(2) Featuring excellent regulating characteristics: The pneumatic V-shaped ball valve has an approximately equal percentage of inherent flow characteristics and an adjustable ratio of up to 300:1. Therefore, pneumatic V-shaped ball valves can provide precise control over a wide range of variations.
(3) Maximum flow volume: Due to its streamlined shape and full right angle rotation control, the maximum volume is particularly high, the flow capacity is particularly large, and the flow resistance is small. Therefore, smaller and more economical valve sizes can be used.
(4) The pneumatic V-shaped ball valve adopts a double bearing structure, with high mechanical stability and low starting torque, ensuring excellent sensitivity and sensing speed of the valve.
(5) Maximum reliability (safety): The valve body is a solid and durable structure, which is not affected by pipeline pressure during operation and can prevent valve body leakage.
(6) The superior sealing performance of metal valve seat: The pneumatic V-shaped ball valve adopts a movable metal valve seat, which has the function of assisting compensation, and has superior sealing performance and ultra long service life. In terms of flow direction, the leakage rate is 10% of the rated flow coefficient.
(7) Super strong shearing ability: The pneumatic V-shaped ball valve adopts a metal hard sealing structure. During the rotation process, the V-shaped notch and the metal seat of the pneumatic V-shaped ball valve produce a strong shearing force that can cut off fibers and other impurities, and has self-cleaning function to avoid valve jamming.
(8) The pneumatic V-shaped ball valve has a compact structure, is small and lightweight, easy to install, and easy to maintain.
(9) The pneumatic actuator adopts a piston type cylinder and a curved arm conversion structure, with a large output torque and a small volume precision. The actuator adopts a fully sealed waterproof design with high protection level. The cylinder block adopts imported mirror cylinder, oil-free lubrication, low friction coefficient, corrosion resistance, and has super durability and reliability. All transmission bearings adopt boundary self-lubricating bearings without oil lubrication to ensure that the transmission shaft is not worn.
3、 Main technical parameters and performance of pneumatic V-shaped ball valve
| Nominal diameter DN | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rated flow coefficient Cv | 32 | 43 | 78 | 90 | 160 | 250 | 360 | 610 | 1120 | 1850 | 2950 | 3700 | 7195 | 11466 |
| Nominal Pressure | PN1.6、2.5、4.0、6.4MPa | |||||||||||||
| strength test | 2.4～9.6MPa | |||||||||||||
| Sealing Test | 1.76～7.0MPa | |||||||||||||
| flow characteristics | Approximately equal percentage | |||||||||||||
| Valve plate angle (degrees) | 0 ° to 90 ° (adjustable) | |||||||||||||
| Allowable leakage level | Soft seal: zero leakage Hard seal: ≤ rated Cv × 0.001% |
Soft seal: VI microbubble level, metal seal: ≤ rated CV × 0.065% | ||||||||||||
| Action time (S/90 degrees) | 8.5～30 | 36~60 | ||||||||||||
| Adjustable ratio | 250:1 | 300:1 | ||||||||||||
| Configure the actuator | GT, SR, ST, AT, AW series single and double acting pneumatic actuators | |||||||||||||
| Control method | Switch type (switch two position control), regulating type (4-20mA control) | |||||||||||||
4、 Technical parameters of pneumatic V-shaped ball valve actuator
| Model of actuator | GT, SR, ST, AT, AW series single and double acting pneumatic actuators |
|---|---|
| gas supply pressure | 0.4～0.7MPa |
| air source interface | G1/4"、G1/8"、G3/8"、G1/2" |
| ambient temperature | -30～+70℃ |
| mode of action | Single acting actuator: gas closed type (B) - valve position open when gas is lost (FO); Pneumatic opening (K) - valve position closed when gas is lost (FC) Double acting actuator: gas closed type (B) - valve position maintenance during gas loss (FL); Pneumatic opening (K) - valve position maintenance during gas loss (FL) |
| Can be equipped with accessories | Positioner, solenoid valve, air filter pressure reducer, holding valve, travel switch, valve position transmitter, handwheel mechanism, etc |
Adopting a new series of pneumatic actuators, including double acting and single acting (spring reset), gear rack transmission, safe and reliable; The large-diameter valve adopts a series of AW type pneumatic actuator fork type transmission, with a reasonable structure and large output torque, and is available in double acting and single acting types.
1. Gear type dual piston, with large output torque and small volume.
2. The cylinder is made of aluminum material, which is lightweight and aesthetically pleasing.
3. Manual operating mechanisms can be installed at the top and bottom.
4. The rack and pinion connection can adjust the opening angle and rated flow rate.
5. The actuator can be equipped with live signal feedback indicators and various accessories to achieve automated operation.
6. The IS05211 standard connection provides convenience for the installation and replacement of products.
7. The adjustable screws at both ends provide a ± 4 ° adjustable range for standard products between 0 ° and 90 °. Ensure synchronization accuracy with the valve.
5、 Main design standards for pneumatic V-shaped ball valves
| Design and Manufacturing | GB12237-89、API608、API 6D、JPI 7S-48、BS5351、DIN3357 |
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| Flange size | JB/T74～90、GB9112～9131、HGJ44～76、SH3406、ANSI B16.5、JIS B2212～2214、DIN2543 |
| structural length | GB12221-89、ANSI B16.10、JIS B2002、NF E29-305、DIN3202 |
| Inspection and Testing | JB/T 9092、API 598、GB/T13927 |
6、 Main component materials of pneumatic V-shaped ball valve
| Nominal diameter mm | DN15-DN300 | |||||
|---|---|---|---|---|---|---|
| Material code | C | P | R | |||
| Main components | valve body | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni 12Mo2Ti | ||
| sphere | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12MoTi | |||
| valve stem | 2Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12MoTi | |||
| sealing ring | Enhanced polytetrafluoroethylene to polystyrene | |||||
| filler | Polytetrafluoroethylene flexible graphite | |||||
| Applicable working conditions | Applicable Medium | Steam, water, oil products | Acetic acid | |||
| Applicable Temperature | -28℃ - 300℃ | |||||
7、 Main performance specifications for pneumatic V-shaped ball valves
| Nominal diameter DN (mm) | DN15-300 | |||||
|---|---|---|---|---|---|---|
| Nominal Pressure | PN(MPa) | 1.0 | 1.6 | 2.5 | 4.0 | 6.4 |
| Test pressure | strength test | 1.5 | 2.4 | 3.75 | 6.0 | 9.60 |
| Sealing Test | 1.1 | 1.76 | 2.75 | 4.4 | 7.04 | |
| Low pressure airtightness test | 0.5～0.7 | |||||
| Applicable Medium | Water, oil, steam, nitric acid (temperature ≤ 200 ℃), acetic acid (temperature ≤ 200 ℃) | |||||
8、 Selection of Pneumatic V-shaped Ball Valve Products
(1) Valve body parameters: nominal diameter, working pressure, process medium, usage scenario, valve body material, and other series of parameters.
(2) Actuator parameters: actuator form, control mode, control signal (4-20mA, 1-5V), action mode (air open, air closed)
Please provide the above technical parameters in as much detail as possible to facilitate our company's operations and technical personnel to accurately select for you. If you have any questions You can call us and we will do our best to provide you with high-quality service!
