·【Main technical parameters】

Caliber range: DN80~DN1000;

Pressure range: Class 150~600;

Design standard: GB/T 24925, JB/T 12623;

Structure length: API 609, ISO 5752 GB/T 12221;

Bonnet extension: GB/T 24925, ISO 28921 SHELL SPE 77/200;

Test standard: BS 6364, GB/T 24925 JB/T 12622, ISO 28921-1;

Operating temperature:-196~-50℃.

·【Features】

1. Due to the above targeted design features, the reliability of the seal at low temperatures is ensured. It can not only meet BS 6364, GB/T 24925 and ISO 28921-1 (1/2 of BS6364), but also meet the requirements of BS 6364. /3, Level VI of GB/T 4123 is also optional;

2. The pure metal surfacing cemented carbide seal pair ensures the long-term cycle life at low temperatures. The flexible seal ring design ensures that the surface pressure of the seal pair is small, and the packing seal design with special structure ensures the long-term use of the special structure of the packing seal design to ensure the seal at the stuffing box. , Meet ISO 15848-1;

3. The valve seat sealing ring is a split design, which can be disassembled and replaced, which can realize online maintenance and repair, which saves maintenance costs and improves efficiency;

4. The special double bevel and triple eccentric seal pair design reduces the radial eccentricity, greatly reduces the torque of the actuator, and reduces the torque required for closing, and also greatly reduces the momentary torque of opening. Reduce the contact specific pressure of the sealing pair, reduce the cost and increase the service life;

5. Welded butterfly valve design, with overhaul installation port design, to ensure the replacement of the on-site sealing pair;

6. The flange type adopts API 609 standard flange distance, which ensures that the alternative welding type adopts GB/T 12221 flange distance with other manufacturers, and ensures that the welding with the pipeline does not affect the interior;

7. In addition to different austenitic stainless steels for the valve body, the stem materials are available in XM-19, Gr660 Type 2, Inconel 718 and other materials. The special structure ensures the low temperature adaptability of the material.

·【Scope of application】

It is widely used in industrial control systems such as chlor-alkali, petrochemical, metallurgy, medicine, electric power, fertilizer industries, etc., to control acids, alkalis and other strong corrosive gases, liquids and other media.

·【Sample Download】