Q641H, Q641Y Pneumatic High Temperature Ball Valve

Q641H, Q641Y Pneumatic High Temperature Ball Valve

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, van điện từ, 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, small size, 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, hóa chất, educational equipment, light industry, high-pressure equipment, dược phẩm, and papermaking industries for remote centralized or local control.

Tên sản phẩm: Pneumatic High-Temperature Ball Valve

Mẫu sản phẩm: Q641H/Y
Đường kính danh nghĩa: DN15～DN300
Structure: hình cầu

Áp suất danh nghĩa: 1.6Mpa～16.0Mpa
Phương thức kết nối: mặt bích, Wafer, Chủ đề nội bộ, Welding

Nhiệt độ áp dụng: ≤550ºC
Phương pháp kích hoạt: Khí nén (Manual Operation Available)

Vật liệu thân van: Thép đúc, thép không gỉ
Tiêu chuẩn sản xuất: GB (Tiêu chuẩn quốc gia Trung Quốc), TỪ (Tiêu chuẩn Đức), API (Tiêu chuẩn Mỹ), ANSI (Tiêu chuẩn Mỹ)

Phương tiện áp dụng: Nước, Dầu, Khí đốt, Chất lỏng
nhà sản xuất:Công ty Van Kozo Chiết Giang, Công ty TNHH.

Main Technical Parameters and Performance

Nominal Diameter DN (mm): 15～300
Actuator Model: GT, TẠI, AW series single/double-acting pneumatic actuators

Áp suất danh nghĩa (MPa): PN1.6, 2.5, 4.0, 6.4; 10.0, 16.0, MPa
Supply Pressure: 0.4～0.7MPa

Valve Body Type: Two-stage cast ball valve
Air Source Interface: G1/4″, G1/8″, G3/8″, G1/2″

Kiểu kết nối: Flanged, Welded
Ambient Temperature: -30～+70℃

Valve Core Type: “O” type ball valve core
Actuation Type: Single-acting actuator, double-acting actuator

Sealing Packing: Flexible graphite, spiral wound gasket
Optional Accessories: Positioner, van điện từ, air filter regulator, position holding valve, limit switch, máy phát vị trí van, cơ cấu tay quay, vân vân.

Flow Characteristics: Approximately quick-opening type Utilizing a new type of pneumatic actuator, available in double-acting and single-acting (mùa xuân trở lại) 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, ít hơn 0.01% KV định mức
Applicable temperature: PPL≤300℃, hard seal≤450℃
Basic error: With positioner: less than ±2% of full stroke
Dead zone: With positioner: ít hơn 2% of full stroke
Adjustable range: 250:1
Actuator configuration: GT, TẠI, Thiết bị truyền động khí nén tác động đơn và kép dòng AW
Control method: Two-position switch control, 4-20mA điều khiển tương tự

Q641H, Q641Y Pneumatic High Temperature Ball Valve Main Design Standards

Design and Manufacturing: 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
Structural Length: GB12221-89, ANSI B16.10, Ngài B2002, NF E29-305, DIN3202
Inspection and Testing: JB/T 9092, API 598, GB/T13927
Vật liệu thành phần chính

Q641H, Q641Y Pneumatic High Temperature Ball Valve Component Name Material Name
Valve Body: WCB 304(CF8), 316(CF8M), 316L(CF3M)
Ball: 2Cr13 + Nitrided, 304 316 316L
Valve Stem: 2Cr13 304 316 316L
Sealing Ring: Reinforced PTFE (PPL), Para-Polystyrene, Stainless Steel Sealing Ring
Phương tiện áp dụng: Nước, Khí đốt, Steam, Dầu, vân vân.; Corrosive Media such as Nitric Acid; Corrosive Media such as Acetic Acid; Corrosive Media such as Urea