Q641F, Katup Bola Bergelang Pneumatik Q641FH
The Q641F/H pneumatic flange ball valve consists of a high-precision pneumatic actuator and a precision-cast ball valve. It is mainly divided into two categories: pneumatic soft-seal ball valves (≤200°) and pneumatic hard-seal ball valves (≤550°). Pneumatic ball valves have advantages such as compact structure, ukuran kecil, operasi yang andal, low flow resistance coefficient, kinerja penyegelan yang baik, perawatan yang mudah, instalasi yang nyaman, dan kemampuan beradaptasi yang kuat. Pneumatic ball valves can be equipped with travel limit switches, solenoid valves, pressure reducing valves, and a 0.4-0.7MPa air source to achieve on/off operation, and send two pairs of passive contact signals to indicate the valve’s opening and closing. Pneumatic flange ball valves are particularly suitable for applications involving viscous, partikulat, atau media berserat.
Nama Produk: Pneumatic Flanged Ball Valve
Model Produk: Q641F/H
Diameter Nominal: DN15～DN400
Tipe Struktur: Bulat
Tekanan Nominal: 1.6Mpa～32.0Mpa
Metode Koneksi: Bergelang, Kue wafer, Threaded, Lasan
Suhu yang Berlaku: ≤550ºC
Metode Aktuasi: Pneumatik (manual operation also possible)
Bahan Badan Katup: Baja Tuang, Baja Tahan Karat
Standar Manufaktur: GB (Standar Nasional Tiongkok), DARI (Standar Jerman), API (Standar Amerika), ANSI (Standar Amerika)
Media yang Berlaku: Air, Minyak, Gas, Cairan
Pabrikan:Zhejiang Kozo Valve Co., Ltd.
Q641F, Q641FH Pneumatic Flanged Ball Valve Product features
(1) Resistensi cairan kecil. 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
Diameter nominal DN (mm) 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 (MPa) PN1.6, 2.5, 4.0, 6.4 MPa; ANSI 150, 300LB
Perbedaan tekanan yang diijinkan (MPa) ≤ tekanan nominal
Valve body type two-stage cast ball valve
Connection form flange type, welding type, threaded type
Bentuk inti katup “HAI” type spherical valve core
Sealing packing V-type polytetrafluoroethylene packing, flexible graphite packing, dll..
Flow characteristics: Approximate quick-opening type
Rentang pergerakan 0～90°
Leakage Q according to GB/T4213-92, kurang dari 0.01% dari nilai KV
Rentang yang dapat disesuaikan 250:1 350:1
Configuration actuator can be equipped with GT, SR, ST, PADA, AW and other series of pneumatic actuators
Modus kontrol: switch type (kontrol sakelar dua posisi), tipe pengatur (4~20mA control)
Q641F, Q641FH Pneumatic Flanged Ball Valve Actuator parameters
Model aktuator GT, PADA, AR, Aktuator pneumatik akting tunggal dan ganda seri AW
Tekanan pasokan udara 0,4～0,7MPa
Antarmuka sumber udara G1/4″, G1/8″, G3/8″, G1/2″
Suhu sekitar -30～+70℃
Bentuk fungsional: aktuator kerja tunggal: tipe udara-tertutup (B)–posisi katup terbuka (FO) ketika udaranya hilang; tipe bukaan udara (K)–posisi katup tertutup (FC) ketika udaranya hilang.
Aktuator akting ganda: tipe penutup udara (B)–posisi katup dipertahankan ketika udara hilang (FL); tipe bukaan udara (K)–posisi katup dipertahankan ketika udara hilang (FL)
Dapat dilengkapi dengan aksesoris: pengatur posisi, katup solenoid, peredam tekanan filter udara, katup penahan posisi, saklar perjalanan, pemancar posisi katup, mekanisme roda tangan, dll..
Q641F, Q641FH Pneumatic Flanged Ball Valve Part material
Part name Material
Badan katup WCB 304(CF8) 316(CF8M) 316L(CF3M)
Perawatan nitridasi bola 2Cr13+ 304 316 316L
Batang katup 2Cr13 304 316 316L
Valve seat seal: PTFE (politetrafluoroetilen), PPL (para-polyphenylene), metal seal (tungsten carbide)
Filling V-type PTFE PTFE filler, grafit fleksibel
performance specifications
Diameter nominal 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 air tightness test 0.5～0.7
Media yang berlaku: air, minyak, uap, nitric acid (temperature ≤ 200°C), acetic acid (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) NBR ABC SUS304
AW series cast steel
(hard anodized) die-cast aluminum steel
(Nickel-phosphorus alloy plating) NBR ABC SUS304
