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Product Category：BALL VALVE
Product Name：Q671F pneumatic thin ball valve
Product Tag：pneumatic thin ball valve
Update Date：2021/8/30 23:05:04
Visits：
Q671F pneumatic wafer ball valve is a kind of pneumatic ball valve. It is a new generation of ultra-short flange distance ball valve developed by introducing Italian technology and domestically designed. The shape of the ball core channel is rectangular, V-shaped and O-shaped. The product has the characteristics of compact structure, small size, light weight, and convenient installation. It can be widely used in petroleum, chemical industry, metallurgy, power station, light industry and other fields to automatically adjust or adjust oil, water, gas and pulp or fibrous fluids. Cut off control.
working principle:
Q671F pneumatic wafer ball valve is composed of Italian wafer ball valve and GT pneumatic actuator. Pneumatic actuators are divided into double-acting pneumatic actuators and single-acting pneumatic actuators, which are controlled by solenoid valves to achieve ball valve switching action. The pneumatic ball valve can realize intelligent control, quickly open or close the pipeline, and can effectively control and manage the pipe network.
Features:
1. The thin ball valve is a new type of ultra-short flanged ball valve developed by absorbing Italian technology and domestically designed.
2. It adopts the direct connection method to connect the actuator, which has the advantages of compact structure, small size, light weight, low friction resistance, small backlash, stable and reliable action, etc.
3. The shape of the core channel is rectangular, V-shaped and O-shaped. The product has the characteristics of compact structure, small size, light weight, and convenient installation. It can be widely used in petroleum, chemical industry, metallurgy, power station, light industry and other fields to automatically adjust or adjust oil, water, gas and pulp or fibrous fluids. Cut off control.
The main technical parameters:
Product name: Q671F pneumatic wafer thin ball valve
Model Q671F
Material cast iron, cast steel, stainless steel
Connection form Wafer flange
Structure form Fixed ball valve
Nominal diameter DN15 DN20 DN25 DN32 DN40 DN50 DN65 DN80 DN100 DN12 (mm)
Applicable medium: sewage, purified water, steam, vacuum
Pressure environment Normal pressure, high pressure
Working temperature Normal temperature and high temperature
Standard National Standard
Flow direction two-way
Drive mode: manual, pneumatic, electric
Parts and accessories
Use cut-off
Type (channel position) Straight-through
Target Pump
Specification DN15
| Valve body form | Straight-through casting ultra-short valve |
| Nominal diameter | DN15～150mm |
| Nominal pressure | National standard PN1.6, 2.5, 4.0, 6.4 MPa; American standard ANSI 150, 300LB; Japanese standard JIS 10, 20, 30K |
| Flange standard | JIS, ANSI, GB, JB, HG, etc. |
| Connection Type | Flange type, wafer type |
| Gland type | Nut compression type |
| Seal packing | V-type PTFE packing, flexible graphite packing, etc. |
☆Valve trim
| Spool form | O type ball valve core |
| Flow characteristics | Approximate quick opening |
☆Executive agency
| Actuator model | GT, SR, ST, AT, AW series single and double acting pneumatic actuators |
| Supply pressure | 0.4～0.7MPa |
| Air source interface | G1/4", G1/8", G3/8", G1/2" |
| Ambient temperature | -20～+90℃ |
| Action form | Single-acting actuator: air-to-close type (B)-valve position open when air is lost (FO); air-to-open type (K)-valve position closed when air is lost (FC) |
Double-acting actuator: air-to-close type (B)-valve position retention (FL) when air is lost; air-open type (K)-valve position retention (FL) when air is lost
| Can be equipped with accessories | Positioner, solenoid valve, air filter pressure reducer, retaining valve, travel switch, valve position transmitter, handwheel mechanism, etc. |
※Note: If you need detailed actuator parameters, please enter the pneumatic actuator page to check.
☆Main performance indicators
| Nominal diameter DN(mm) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 |
| Allowable pressure difference (MPa) | ≤Nominal pressure | |||||||||||||
| Range of motion | 0～90° | |||||||||||||
| Leakage Q | According to GB/T4213-92, less than 0.01% of rated KV (soft seal is zero leakage) | |||||||||||||
| Basic error | With positioner: less than ±2% of full stroke | |||||||||||||
| Back difference | With positioner: less than 2% of full stroke | |||||||||||||
☆Main performance specifications
| Test pressure (MPa) | Nominal pressure (MPa) | Pressure level (class) | JIS(K) | |||||
| 1.6 | 2.5 | 4.0 | 6.4 | 150 | 300 | 10K | 20K | |
| Strength test | 2.4 | 3.75 | 6.0 | 9.6 | 3.0 | 7.5 | 2.4 | 3.8 |
| Sealing test | 1.76 | 2.75 | 4.4 | 7.04 | 2.2 | 5.5 | 1.5 | 2.8 |
| Airtight test | 0.5～0.7MPa | |||||||
☆Material of main parts
| 1 | Valve body | WCB, CF8, CF8M, CF3M |
| 2 | Pressure ring | 2Cr13, 304, 316 |
| 3 | Valve seat | PEFE, PPL, 304 |
| 4 | Sphere | 2Cr13, 304, 316 |
| 5 | Stem | 2Cr13, 304, 316 |
| 6 | Seal packing | PTFE/flexible graphite |
| 7 | Nut gland | 2Cr13, 304, 316 |
| Nominal diameter DN(mm) | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 |
| L | 108 | 112 | 114 | 127 | 140 | 140 | 152 | 165 | 178 | 190 | 216 |
| H | 112 | 115 | 120 | 140 | 170 | 180 | 210 | 240 | 290 | 320 | 350 |
| D | 165 | 185 | 200 | 220 | 250 | 285 | 340 | 405 | 460 | 520 | 580 |
| D1 | 125 | 145 | 160 | 180 | 210 | 240 | 295 | 355 | 410 | 470 | 525 |
| D2 | 46 | 56 | 65 | 76 | 84 | 99 | 118 | 132 | 156 | 184 | 211 |
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