Van bi cố định mặt bích Q47F-16C bằng tay, thép đúc

Van bi cố định mặt bích Q47F-16C bằng tay, thép đúc

The Q47F fixed ball valve is used in industries such as natural gas, dầu, hóa chất, metallurgy, urban construction, environmental protection, pharmaceuticals, and food. The sulfur-resistant series is suitable for long-distance natural gas pipelines containing hydrogen sulfide, high levels of impurities, and severe corrosion. It is a new generation of high-performance ball valves, thích hợp cho đường ống dẫn đường dài và đường ống công nghiệp nói chung. Sức mạnh của nó, sự an toàn, và khả năng chống chịu với môi trường khắc nghiệt đã được xem xét đặc biệt trong thiết kế của nó, làm cho nó phù hợp với các phương tiện ăn mòn và không ăn mòn khác nhau.

Tên sản phẩm: Fixed Ball Valve

Mẫu sản phẩm: Q47F, Q347F, Q647F, Q947F

Đường kính danh nghĩa: DN50～DN1200
Loại cấu trúc: hình cầu

Áp suất danh nghĩa: 1.6Mpa～42.0Mpa
Connection Method: mặt bích

Nhiệt độ áp dụng: -20～+100℃～+450℃
Phương pháp kích hoạt: Thủ công, Worm Gear, Khí nén, Điện

Vật liệu thân van: Cast Steel, 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, Steam, Khí đốt, Khí, and Corrosive Liquids, vân vân.
nhà sản xuất:Công ty Van Kozo Chiết Giang, Công ty TNHH.

Van bi cố định mặt bích Q47F-16C bằng tay, cast steel product description

Q47F fixed ball valves are used in natural gas, oil products, chemicals, metallurgy, urban construction, environmental protection, pharmaceuticals, food and other industries. The anti-sulfur series products are suitable for long-distance natural gas pipelines with hydrogen sulfide-containing media, many impurities, and severe corrosion. It is a new generation of high-performance ball valve, thích hợp cho đường ống dẫn đường dài và đường ống công nghiệp nói chung. Sức mạnh của nó, sự an toàn, and resistance to harsh environments have been specially considered during design. It is suitable for various corrosive and non-corrosive media. Compared with floating ball valves, when it works, all the force generated by the fluid pressure in front of the valve on the ball is transmitted to the bearing, which will not move the ball toward the valve seat, so the valve seat will not bear excessive pressure. Vì thế, the fixed ball valve has small torque, small valve seat deformation, stable sealing performance, and long service life. It is suitable for high-pressure and large-diameter occasions. The advanced spring pre-valve seat assembly has self-tightening characteristics to achieve upstream sealing. Each valve has two valve seats, which can be sealed in each direction, so the installation has no flow restrictions and is bidirectional.
This valve has two body structures: two-piece and three-piece. The middle flange is connected with bolts. The seal is made of reinforced polytetrafluoroethylene embedded in a stainless steel ring. There is no spring at the rear of the steel ring to ensure that the valve seat is close to the ball and maintains sealing. There are no PTFE bearings on the upper and lower valve stems, which reduces friction and saves effort in operation. There is no adjustment piece at the bottom of the small shaft to ensure the joint position between the ball and the sealing ring. Full bore: The flow aperture of the valve is consistent with the inner diameter of the pipeline to facilitate pipeline cleaning.

Van bi cố định mặt bích Q47F-16C bằng tay, cast steel Product features

(1) Effortless operation: The ball is supported by upper and lower bearings, which reduces friction and eliminates excessive torque caused by the huge sealing load formed by the inlet pressure pushing the ball and the seal seat.
(2) Reliable sealing performance: The PTFE single material sealing ring is embedded in the stainless steel valve seat. A spring is provided at the end of the metal valve seat to ensure sufficient pre-tightening force of the sealing ring. When the sealing surface of the valve is worn during use, the valve will continue to ensure good sealing performance under the action of the spring.
(3) Fireproof structure: In order to prevent the polytetrafluoroethylene sealing ring from burning due to sudden heat or fire, resulting in large leakage and fueling the fire, a fireproof sealing ring is installed between the ball and the valve seat. When the sealing ring burns out, under the action of the spring force, the valve seat sealing ring is quickly pushed onto the ball to form a metal-to-metal seal, which achieves a certain degree of sealing effect. The fire resistance test meets the requirements of APl6FA and APl607 standards.
(4) Automatic pressure relief function: When the stagnant medium pressure in the middle cavity of the valve rises abnormally and exceeds the pretightening force of the spring, the valve seat retreats away from the ball to achieve the effect of automatic pressure relief. After the pressure is relieved, the valve seat automatically resets.
(5) Drainage pipeline: Drainage holes are provided on the upper and lower sides of the valve body to check whether the valve seat is leaking. During operation, when the valve is fully open or fully closed, the pressure in the middle cavity can be removed and the packing can be directly replaced; the residual matter in the middle cavity can be discharged to reduce contamination of the valve by the medium. Auxiliary seal setting system (customers need to specify when ordering)
(6) This valve is designed with an auxiliary valve seat emergency sealing system. Once the seal is damaged or an emergency situation occurs and the seal cannot be sealed, the sealing surface can be repaired by injecting corresponding sealant into the sealing surface through the auxiliary sealing system to achieve emergency sealing. When the transported medium is unclean or contains a small amount of particles, in order to protect the sealing surface and ensure reliable sealing, the device can also be injected with corresponding cleaning agent or lubricant to clean the sealing surface.
(7) Widely used in the cutting or circulation of transportation pipeline media such as food, medicine, petroleum, chemical industry, natural gas, steel, environmental protection, papermaking, vân vân. Corresponding cleaning agent or lubricant can also be injected into this device to clean the sealing surface.

Van bi cố định mặt bích Q47F-16C bằng tay, cast steel Main parts and materials
Serial number parts
Name Ordinary Carbon
Steel series Stainless steel series Low temperature steel series Sulfur resistant series
GB standard NACE standard
1 valve cover A216 WCB A351 CF8, CF8M, CF3, CF3M A352 LCB,
LCC+ENP A216 WCB A351 CF8M
2 Nut A194 2H A194 8, 8M A194 4 A194 2HM A194 2HM
3 studs A193 B7 A193 B8, B8M A320 L7 A193 B7M A193 B7M
4 pads Flexible graphite + stainless steel
5 O-ring fluorine rubber
6 Spring INCONEL X-750
7 O-ring fluorine rubber
8 O-ring fluorine rubber
9 stops PTFE
10 Fire Ring Graphite Packing
11 Valve seat support ring A105+
HCr/ENP A182 F304, F316, F304L, F316L F182 F6a A105+
HCr/ENP A182, F316+ENP
12 Valve seat PTFE, RPTFE, polymer NYLON, MOLON or PEEK
13 Thrust washer PTFE, or PTFE+flexible graphite
14 keys GB/T699 45, ASTM 1045
15 Valve stem A182 F6a A182 F304, F316, F304L, F316L A182 F6a A182 F304 A182 F316+ENP
16 Anti-static device stainless steel assembly
17 Shaft Sleeve 304+PTFE
18 balls A105+
HCr/ENP A182 F304, F316, F304L, F316L A352 LCB,
LCC+ENP A105+
HCr/ENP A351 CF8M+ENP
19 pads PTFE
20 shaft sleeve 304+PTFE
21 Nut A194 2H A194 8, 8M A194 4 A194 2HM A194 2HM
22 studs A193 B7 A193 B8, B8M A320 L7 A193 B7M A193 B7M
23 bottom cover A105+
HCr/ENP A182 F304, F316, F304L, F316L A182 F6a A105+ENP/A182 F3164+ENP
24 pads flexible graphite+stainless steel
25 valve body A216 WCB A351 CF8, CF8M, CF3, CF3M A352 LCB,
LCC+ENP A216 WCB A351 CF8M
26 pads flexible graphite+stainless steel
27 O-ring fluorine rubber
28 Upper cover A105+
HCr/ENP A182 F304, F316, F304L, F316L A182 F6a A105+ENP/A182 F3164+ENP
29 screws A193 B7 A193 B8, B8M A320 L7 A193 B7M A193 B7M
30 O-ring fluorine rubber
31 O-ring fluorine rubber
32 Filling Flexible graphite/graphite packing
33 Nut A194 2H A194 8, 8M A194 4 A194 2HM A194 2HM
34 studs A193 B7 A193 B8, B8M A320 L7 A193 B7M A193 B7M
35 connection plate A105+
HCr/ENP A182 F304, F316, F304L, F316L A182 F6a A105+ENP/A182 F3164+ENP
H 36 locating pin stainless steel
37 screws A193 B7 A193 B8, B8M A320 L7 A193 B7M A193 B7M
38 Worm gear box assembly
39 Greasing valve same shell material
40 Drain valve same shell material
41 Greasing valve same shell material

Van bi cố định mặt bích Q47F-16C bằng tay, cast steel Technical Specifications

Design Basis: National Standards Series, American Standards Series
Design Standards: GB/T12237 AP16D ANSI B16.34
Flange Connection Structure Length: GB/T12221 AP16D ANSI B16.10
Structural Length (Welding): GB/T15188.1 AP16D ANSI B16.10
Connecting Flanges: GB/T9113
JB/T79 HG20592 ANSI B16.5, B16.47
Butt Weld Ends: GB/T12224 ANSI B16.25
Testing and Inspection: GB/T9092 AP16D AP1598