Q644F, Valvola a sfera pneumatica a tre vie Q645F
The Q644F/Q645F pneumatic three-way ball valve is a three-channel rotary ball valve used for media diversion, merging, and flow direction switching. Any one of the pipes can be used as an inlet or outlet. Pneumatic three-way ball valves are available in two types: L-type and T-type, to meet different production process requirements. The L-type pneumatic three-way ball valve cuts off two of the three pipes, while the T-type pneumatic three-way ball valve allows for merging and diverting of the three connected pipes.
Nome del prodotto: Pneumatic Three-Way Ball Valve
Modello del prodotto: Q644F/Q645F
Diametro nominale: DN15～DN300
Tipo di struttura: Sferico
Pressione nominale: 1.6Mpa～6.4Mpa
Metodo di connessione: Flangia, Filettatura interna
Temperatura applicabile: ≤450ºC
Metodo di attuazione: Pneumatico
Materiale del corpo valvola: Acciaio fuso, Acciaio inossidabile
Norma di produzione: GB (Standard nazionale cinese), DA (Norma tedesca), API (Norma americana), ANSI (Norma americana)
Supporti applicabili: Acqua, Olio, Gas, Liquido
Produttore: Zhejiang Kozo Valve Co., Ltd
Q644F, Q645F Pneumatic Three-Way Ball Valve product description
Q644F/Q645F pneumatic three-way ball valve is a three-channel rotary ball valve, used for medium diversion, confluence and flow direction switching. Any pipe can be used as the inlet or outlet. Pneumatic three-way ball valves are divided into two types: pneumatic three-way L-shaped ball valve and pneumatic three-way T-shaped ball valve, which can meet different production process requirements. The pneumatic three-way L-shaped ball valve cuts off two of the three pipelines, and the pneumatic three-way T-shaped ball valve realizes the merging and diverging of the three connected pipelines. The pneumatic three-way regulating ball valve is matched with the electric valve positioner. By inputting 4~20mADC signal and 0.4~0.7MPa air source, the operation can be controlled to realize the adjustment of pressure, flow, temperature, liquid level and other parameters. The pneumatic three-way reversing ball valve is equipped with a stroke limit switch, a solenoid valve, a pressure reducing valve and a 0.4-0.7MPa air source to realize switching operations, and sends two pairs of passive contact signals to indicate the switching of the valve. Pneumatic three-way ball valves are widely used in chemical, petroleum, textile, energia elettrica, food and pharmaceutical, refrigeration, aviation, aerospace, papermaking and other industrial fields.
Q644F, Q645F Pneumatic Three-Way Ball Valve Product features
(1) The fluid resistance is small, and its resistance coefficient is equal to that of a pipe section of the same length.
(2) Simple structure, small size and light weight.
(3) Tight and reliable. At present, plastic is widely used as the sealing surface material of ball valves, which has good sealing performance and has also been widely used in vacuum systems.
(4) It is easy to operate and can be opened and closed quickly. It only needs to be rotated 90° from fully open to fully closed, which is convenient for long-distance control.
(5) It is easy to maintain. The ball valve has a simple structure and the sealing rings are generally movable, making it easy to disassemble and replace.
(6) When fully open or fully closed, the sealing surfaces of the ball and valve seat are isolated from the medium. When the medium passes, it will not cause erosion of the sealing surface of the pneumatic three-way ball valve.
(7) It has a wide range of applications, with diameters ranging from a few millimeters to several meters, and can be applied from high vacuum to high pressure.
Q644F, Q645F Pneumatic Three-Way Ball Valve design standards
Design and manufacturing GB12237-89, API608, API6D, JPI7S-48, BS5351, DIN3357
Flange size JB/T74～90, GB9112～9131, HGJ44～76, SH3406, ANSI B16.5, JIS B2212～2214, DIN2543
Structure length GB12221-89, ANSI B16.10, HE B2002, NF E29-305, DIN3202
Inspection and testing JB/T 9092, API 598, GB/T13927
Q644F, Q645F Pneumatic Three-Way Ball Valve Technical parameters
Nominal diameter DN (mm) 15 20 25 32 40 50 65 80 100 125 150 200
Allowable pressure difference (MPa) ≤ nominal pressure
Movement range 0～90°
Valve body form: two-stage split casting valve body
Valve cover form: integral
Gland type Bolt pressing type
Sealing packing V-type PTFE packing, impregnated PTFE asbestos packing, asbestos textile packing, graphite packing
Connection method: flange type, thread type (applicable to 1/2″~2″)
Valve core form: three-way ball valve core
Flow characteristics Approximate quick opening characteristics
Leakage Q Soft seal: zero leakage; Metal seal: according to GB/T4213-92, meno di 0.01% di KV nominale
Basic error ±1%
Return difference ±1%
Dead zone ≤1%
Configuration actuator model GT, SR, ST, A, Attuatori pneumatici serie AW a semplice e doppio effetto
Control mode: two-position switch control, 4-20Controllo analogico mA
Q644F, Q645F Pneumatic Three-Way Ball Valve Actuator parameters
Actuator model GT, A, AR, Attuatori pneumatici serie AW a semplice e doppio effetto
Air supply pressure 0.4～0.7MPa
Air source interface G1/4″, G1/8″, G3/8″, G1/2″
Ambient temperature -30～+70℃
Functional form: single-acting actuator: air-closed type (B)–the valve position is open (FO) when the air is lost; air-opening type (K)–the valve position is closed (FC) when the air is lost.
Double-acting actuator: air-closing type (B)–the valve position is maintained when the air is lost (FL); air-opening type (K)–the valve position is maintained when the air is lost (FL)
Can be equipped with accessories: positioner, elettrovalvola, air filter pressure reducer, position retaining valve, travel switch, trasmettitore di posizione della valvola, meccanismo del volantino, ecc.
It adopts a new series of pneumatic actuators, including double-acting and single-acting (ritorno primaverile), and rack and pinion transmission, which is safe and reliable; large-diameter valves adopt a series of AW-type pneumatic actuators with fork transmission, with reasonable structure and large output torque, and are available in double-acting and single-acting.
1. Gear-type double pistons, large output torque and small size.
2. The cylinder is made of aluminum gold, which is light in weight and beautiful in appearance.
3. Manual operating mechanisms can be installed on the top and bottom.
4. The rack-type connection can adjust the opening angle and rated flow rate.
5. The actuator can be equipped with optional live signal feedback instructions and various accessories to achieve automated operation.
6. IS05211 standard connection provides convenience for product installation and replacement.
7. The adjustable joint screws at both ends allow the standard product to have an adjustable range of ±4° between 0° and 90°. Ensure synchronization accuracy with the valve.
Q644F, Q645F Pneumatic Three-Way Ball Valve Part material
Part name Material name
Valve body WCB 304(CF8) 316(CF8M) 316l(CF3M)
Sphere 2Cr13+ nitriding treatment 304 316 316l
Valve stem 2Cr13 304 316 316l
Seal: polytetrafluoroethylene (PTFE), reinforced polytetrafluoroethylene (PPL), para-polystyrene, flexible graphite
Applicable media Water, gas, vapore, oil, ecc. Corrosive media such as nitric acid Corrosive media such as acetic acid Corrosive media such as urea
