Q641H, Q641Y Pnömatik Yüksek Sıcaklık Küresel Vana
The Q641H/Y pneumatic high-temperature ball valve consists of a metal hard-seal ball valve and a piston-type pneumatic actuator. The sealing surface uses a metal hard-seal valve seat, suitable for media with a temperature ≤500°C. The pneumatic high-temperature ball valve can be equipped with a valve positioner to input control signals (4-20mA DC or 1-5V DC) and a pneumatic power source for operation. It can also be equipped with a travel limit switch, solenoid valve, pressure reducing valve, and a 0.4～0.7MPa pneumatic power source to achieve on/off operation, and sends out two pairs of passive contact signals to indicate the valve’s opening and closing. The pneumatic high-temperature ball valve as a whole has advantages such as compact structure, küçük boy, reliable operation, good sealing performance, easy maintenance, convenient installation, and strong adaptability.Especially suitable for applications involving viscous, particulate, or fibrous media. Pneumatic high-temperature ball valves are widely used in industrial automatic control systems in petroleum, kimyasal, educational equipment, hafif sanayi, high-pressure equipment, ilaç, and papermaking industries for remote centralized or local control.
Ürün Adı: Pneumatic High-Temperature Ball Valve
Ürün Modeli: Q641H/Y
Nominal Çap: DN15~DN300
Yapı: Küresel
Nominal Basınç: 1.6Mpa～16.0Mpa
Bağlantı Yöntemi: Flanş, Gofret, İç dişli, Welding
Uygulanabilir Sıcaklık: ≤550ºC
Çalıştırma Yöntemi: Pnömatik (Manual Operation Available)
Valf Gövde Malzemesi: Dökme Çelik, Paslanmaz çelik
Üretim Standardı: Büyük Britanya (Çin Ulusal Standardı), İTİBAREN (Alman Standardı), API'si (Amerikan Standardı), ANSI (Amerikan Standardı)
Uygulanabilir Medya: su, Yağ, Gaz, Sıvı
Üretici:Zhejiang Kozo Vana A.Ş., Ltd..
Main Technical Parameters and Performance
Nominal Çap DN (mm): 15~300
Actuator Model: GT, AT, AW series single/double-acting pneumatic actuators
Nominal Basınç (MPa): PN1.6, 2.5, 4.0, 6.4; 10.0, 16.0, MPa
Supply Pressure: 0.4～0.7MPa
Vana Gövde Tipi: İki kademeli döküm küresel vana
Air Source Interface: G1/4″, G1/8″, G3/8″, G1/2″
Bağlantı Türü: Flanşlı, Welded
Ortam Sıcaklığı: -30～+70℃
Valf Çekirdek Tipi: “O” tip küresel vana çekirdeği
Actuation Type: Single-acting actuator, double-acting actuator
Sızdırmazlık Ambalajı: Flexible graphite, spiral wound gasket
Optional Accessories: Positioner, solenoid valve, air filter regulator, position holding valve, limit switch, valve position transmitter, handwheel mechanism, vesaire.
Akış Özellikleri: Approximately quick-opening type Utilizing a new type of pneumatic actuator, available in double-acting and single-acting (spring return) versions, with gear and rack drive for safety and reliability; large-diameter valves employ the AW series pneumatic actuator with a fork-type drive, featuring a reasonable structure, high output force, and available in double-acting and single-acting versions.
1. Gear-type double piston design, high output torque, and compact size.
2. Cylinder made of aluminum alloy, lightweight and aesthetically pleasing.
3. Manual operating mechanisms can be installed at the top or bottom.
4. Rack-and-pinion connection allows for adjustment of opening angle and rated flow rate.
5. Actuators can be optionally equipped with electrical signal feedback indicators and accessories for automated operation.
6. ISO5211 standard connection facilitates product installation and replacement.
7. Adjustable screws at both ends allow for ±4° adjustment range between 0° and 90° for standard products, ensuring synchronization accuracy with the valve.
Operating range: 0~90°
Leakage Q: According to GB/T4213-92, less than 0.01% derecelendirilmiş KV'nin
Applicable temperature: PPL≤300℃, hard seal≤450℃
Basic error: With positioner: less than ±2% of full stroke
Dead zone: With positioner: less than 2% of full stroke
Ayarlanabilir aralık: 250:1
Aktüatör konfigürasyonu: GT, AT, AW series single and double acting pneumatic actuators
Control method: Two-position switch control, 4-20mA analog control
Q641H, Q641Y Pneumatic High Temperature Ball Valve Main Design Standards
Tasarım ve İmalat: GB12237-89, API608, API 6D, JPI 7S-48, BS5351, DIN3357
Flange Dimensions: JB/T74～90, GB9112～9131, HGJ44～76, SH3406, ANSI B16.5, JIS B2212～2214, DIN2543
Yapısal Uzunluk: GB12221-89, ANSI B16.10, JIS B2002, NF E29-305, DIN3202
Inspection and Testing: JB/T 9092, API'si 598, GB/T13927
Ana Bileşen Malzemeleri
Q641H, Q641Y Pneumatic High Temperature Ball Valve Component Name Material Name
Vana Gövdesi: WCB 304(CF8), 316(CF8M), 316L(CF3M)
Top: 2Cr13 + nitrürlenmiş, 304 316 316L
Valve Stem: 2Cr13 304 316 316L
Sealing Ring: Reinforced PTFE (PPL), Para-Polistren, Stainless Steel Sealing Ring
Uygulanabilir Medya: su, Gaz, Buhar, Yağ, vesaire.; Corrosive Media such as Nitric Acid; Corrosive Media such as Acetic Acid; Corrosive Media such as Urea
