Q641F, Q641FH 气动法兰球阀
The Q641F/H pneumatic flange ball valve consists of a high-precision pneumatic actuator and a precision-cast ball valve. 主要分为两类: 气动软密封球阀 (≤200°) 和气动硬密封球阀 (≤550°). 气动球阀具有结构紧凑等优点, 小型, 运行可靠, 流阻系数低, 密封性能好, 维护方便, 安装方便, 和较强的适应能力. 气动球阀可配备行程限位开关, 电磁阀, 减压阀, 和0.4-0.7MPa气源实现开关操作, 并发送两对无源触点信号来指示阀门的开启和关闭. 气动法兰球阀特别适用于涉及粘性的应用, 颗粒物, 或纤维介质.
产品名称: Pneumatic Flanged Ball Valve
产品型号: Q641F/H
公称直径: DN15～DN400
结构类型: 球形
公称压力: 1.6Mpa～32.0Mpa
连接方式: 法兰式, 晶圆, 螺纹式, 焊接式
适用温度: ≤550℃
驱动方式: 气动 (manual operation also possible)
阀体材质: 铸钢, 不锈钢
制造标准: 国标 (中国国家标准), 从 (德国标准), 应用程序编程接口 (美国标准), 美国国家标准协会 (美国标准)
适用媒体: 水, 油, 气体, 液体
制造商:浙江科三阀门有限公司, 有限公司.
Q641F, Q641FH Pneumatic Flanged Ball Valve Product features
(1) 流体阻力小. The ball valve has the smallest fluid resistance among all valves. Even the reduced diameter ball valve has a very small fluid resistance.
(2) The thrust bearing reduces the friction torque of the valve stem, making the valve stem’s long-term operation balanced and flexible.
(3) The valve seat has good sealing performance, and the sealing ring made of polytetrafluoroethylene and other materials is used. The structure is easy to seal, and the valve sealing capacity of the ball valve increases with the increase of the medium pressure.
(4) The valve stem seal is reliable. Since the valve stem only rotates and does not move up and down, the packing seal of the valve stem is not easily damaged, and the sealing capacity increases with the increase of the pressure of the medium.
(5) Since materials such as polytetrafluoroethylene have good self-lubricating properties, the friction loss with the ball is small, which helps the ball valve have a long service life.
(6) The bottom-mounted valve stem and the convex steps on the valve stem head prevent the valve stem from spraying out. If the valve stem seal is damaged due to fire, metal contact can also be formed between the convex steps and the valve body to ensure the valve stem sealing.
Q641F, Q641FH Pneumatic Flanged Ball Valve Technical parameters
公称直径DN (毫米) 15 20 25 32 40 50 65 80 100 125 150 200
Rated flow coefficient KV 21 38 72 112 170 273 384 512 940 1452 2222 3589
Nominal pressure (兆帕) PN1.6, 2.5, 4.0, 6.4 兆帕; 美国国家标准协会 150, 300磅
允许压差 (兆帕) ≤ 公称压力
Valve body type two-stage cast ball valve
Connection form flange type, welding type, threaded type
阀芯形式 “氧” type spherical valve core
Sealing packing V-type polytetrafluoroethylene packing, 柔性石墨填料, ETC.
Flow characteristics: Approximate quick-opening type
移动范围0～90°
Leakage Q according to GB/T4213-92, 少于 0.01% 额定KV
可调范围 250:1 350:1
Configuration actuator can be equipped with GT, SR, 英石, 在, AW and other series of pneumatic actuators
控制方式: switch type (两位开关控制), 调节型 (4~20mA control)
Q641F, Q641FH Pneumatic Flanged Ball Valve Actuator parameters
GT型执行器, 在, 增强现实, AW系列单作用和双作用气动执行器
供气压力0.4～0.7MPa
气源接口 G1/4″, G1/8″, G3/8″, G1/2″
环境温度-30～+70℃
功能形式: 单作用执行器: 气密型 (乙)–阀门位置打开 (FO) 当空气失去时; 气开式 (K)–阀门位置关闭 (FC) 当空气失去时.
双作用执行机构: 气密式 (乙)–当空气流失时阀门位置保持不变 (FL); 气开式 (K)–当空气流失时阀门位置保持不变 (FL)
可配备配件: 定位器, 电磁阀, 空气过滤减压器, 位置保持阀, 行程开关, 阀位变送器, 手轮机构, ETC.
Q641F, Q641FH Pneumatic Flanged Ball Valve Part material
Part name Material
阀体 WCB 304(CF8) 316(CF8M) 316L(CF3M)
球体2Cr13+氮化处理 304 316 316L
阀杆2Cr13 304 316 316L
Valve seat seal: 聚四氟乙烯 (聚四氟乙烯), PPL (para-polyphenylene), metal seal (碳化钨)
Filling V-type PTFE PTFE filler, 柔性石墨
performance specifications
公称直径DN (毫米) DN15-300
Nominal pressure PN (兆帕) 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 air tightness test 0.5～0.7
适用介质: 水, 油, 蒸汽, 硝酸 (temperature ≤ 200°C), 醋酸 (temperature ≤ 200°C)
Pneumatic actuator main component materials
Part name Cylinder block End cover Piston Shaft O-ring Indicator shaft Bolt
QW series
AT series aluminum alloy profiles
(hard anodized) die-cast aluminum alloy
(Epoxy resin spray) Die-cast aluminum Steel
(Nickel-phosphorus alloy plating) 丁腈橡胶 ABC SUS304
AW series cast steel
(hard anodized) die-cast aluminum steel
(Nickel-phosphorus alloy plating) 丁腈橡胶 ABC SUS304
