Haiqiao Yap Valve Manufacturing Co., Ltd. [FBQ641F / PPL] pneumatic valve manufacturer of explosion-proof, with large spot to ex-factory sales! Companies adhere to the "quality first, integrity management" purposes, to provide customers with affordable products and perfect after-sales service, welcome to buy! A pneumatic Explosion Ball Product Overview FBQ641F / PPL-proof ball valve pneumatic piston AT series of new pneumatic actuator and floating ball, is suitable for adjusting the cut of the occasion. Pneumatic Explosion-proof valve sealing performance, high flow capacity, simple structure, long life, easy maintenance. Equipped with a simple structure actuator, compact, high performance, large output torque characteristics. Ball valves with pneumatic explosion-proof travel limit switches, explosion-proof solenoid valves, valves and 0.4-0.7MPa gas source switching operation can be achieved, and sent two pairs of passive contact signal indicating the valve switch. Actuator divided into single and double acting models. The unique advantages of the single-action is that once the power source fails, the Ex-pneumatic valve control system requirements will be automatic in the open or closed position. FBQ641F / PPL pneumatic explosion-proof valve widely used in chemical, petroleum, textile, electricity, food and pharmaceutical, refrigeration, aviation, aerospace, paper and other industrial sectors, not only to control the gas, liquid and steam medium, but also to control sewage and contain fiber nature. . Second, the pneumatic valve explosion Features (1) the fluid resistance is small, ball is the smallest of all valves in a fluid resistance, even the reduced diameter valve, the fluid resistance is quite small. (2) reduce the stem thrust bearing friction torque, can balance the long-term operation of a flexible stem. (3) The seat sealing performance, the use of seals made of PTFE and other materials, the structure is easy to seal, and the ball valve sealing capability with the addition of media pressure increases. (4) The valve stem seals, reliable, due to the stem only for rotary motion without doing lifting movement, the valve stem packing is not easy to destroy, and the sealing ability as the pressure medium is added increases. Third, the main technical parameters of pneumatic explosion-proof valve nominal diameter (mm) 15 20 25 32 40 50 65 80 100 125 150 200 250 300 flow coefficient Kv 21 38 72 112 170 273 384 512 940 1452 2222 3589 5128 7359 Nominal pressure (MPa) PN1.6,2.5,4.0,6.4MPa leakage soft sealing: zero leakage; hard seal: ≤ 10-5 rated flow valve in the form of a two-stage valve (floating sphere) two-stage valve (fixed sphere) valve core in the form of "O" type poppet packing polytetrafluoroethylene (PTFE), metal graphite spiral wound gasket flange connection form, weld, threaded quick-opening flow characteristic feature adjustable approximate range DN15-65 DN80-300 250: 1 350: a basic error with positioner: less than ± 2% of full stroke hysteresis band locator: less than 2% of the whole trip is suitable temperature sealing surface PTFE≤150 ℃, RTFE≤180 ℃, PPL≤300 ℃, hard seal ≤ 450 ℃ configure actuators GT, SR, ST, AT, AW series of single and double acting pneumatic actuator control mode switch two controls, 4-20mA analog control four, pneumatic valve actuators technical parameters explosion actuator model GT, SR, ST, AT, AW series of single and double acting pneumatic actuator supply pressure 0.4 ~ 0.7MPa Air Connection G1 / 4 ', G1 / 8', G3 / 8 ', G1 / 2' Ambient temperature -30 ~ + 70 ℃ role in the form of single-acting actuators: air-to-close (B) - When the loss of gas valve opening (FO); open air (K) - when the loss of gas valve closed (FC) double acting actuators: air-to-close ( B) - loss of gas when the valve position to maintain (FL); open air (K) - loss of gas when the valve position to maintain (FL) can be equipped with accessories positioners, solenoid valves, air filter pressure reducer, to secure his position valves, limit switch, valve position transmitter, handwheel institutions using the new series of pneumatic actuators, double acting and single acting (spring return), rack and pinion, safe and reliable; large diameter valves using pneumatic actuator series AW fork type transmission, reasonable structure, large output torque, a double-acting and single-acting. 1, gear dual-piston, output torque, small size. 2, the choice of aluminum alloy cylinder material, light weight, beautiful appearance. 3, at the top, bottom mounting manual operating mechanism. 4, the rack can be adjusted opening angle connector, the rated flow. 5, the actuator feedback signal indicating the optional charging and various accessories to automate operations. 6, IS05211 standard provides a convenient connection to install the replacement product. 7, both ends of the adjusting screw allows the sections of standard products in the 0 ° and 90 ° with the adjustable range of ± 4 °. To ensure the accuracy of synchronization with the valve. Fifth, the pneumatic valve main parts and materials Explosion Part Name Material Name Body WCB 304 (CF8) 316 (CF8M) 316L (CF3M) sphere 2Cr13 + nitriding 304 316 316L stem 2Cr13 304 316 316L ring polytetrafluoroethylene (PTFE) , reinforced PTFE (PPL), PPL, flexible graphite suitable medium water, gas, steam, oil and other nitric acid and other corrosive media and other corrosive media urea and other corrosive media six, pneumatic valve main performance specifications explosion Nominal diameter DN (mm) DN15-300 Nominal pressure PN (MPa) 1.0 1.6 2.5 4.0 6.4 1.5 2.4 Test pressure strength test seal 3.75 6.0 9.60 1.1 1.76 2.75 4.4 7.04 Test low pressure tightness test from 0.5 to 0.7 Applicable medium water, oil, vapor, nitric acid (temperature ≤200 ℃), acetic acid class (temperature ≤200 ℃) Haiqiao Yap valve to provide you with a professional [FBQ641F / PPL Pneumatic Explosion Ball] solution, if there is any doubt, we will be best for you Answers! 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