Wafer-type check valve is suitable for nominal pressure PN1.0MPa ~ 42.0MPa, Class150 ~ 2500; nominal diameter DN12 ~ 1200mm, NPS1/2 ~ 48; operating temperature -196 ~ 540 ℃ of various pipelines, used to prevent the media backflow. Through the selection of different materials, can be applied to water, steam, oil, nitric acid, acetic acid, strong oxidizing media and urea and other media.
Standards and norms
1,Design and manufacture: API 594, API 6D, JB/T 8937;
2,Structural length: API 594, API 6D, DIN 3202, JB/T 8937;
3,Pressure-Temperature Rating: ANSI B 16.34, DIN 2401, GB/T 9124, HG 20605, SH 3406, JB/T 74;
4,Test and inspection: API 598, JB/T 9092;
5, piping flange: JB/T 74 ~ 90, GB / T 9112 ~ 9124, HG 20592 ~ 20635, SH 3406, ANSI B 16.5, DIN 2543 ~ 2548, GB / T 13402, API 605, ASME B 16.47.
Structural characteristics
1,Short structure length, its structure length is only 1/4～1/8 of traditional flange check valve.
2,Small volume, light weight, its weight is only the traditional flange check valve 1/4 ~ 1/20;.
3, and the flap closes quickly, water hammer pressure is small.
4,Horizontal or vertical pipeline can be used, installation aspects.
5, the flow channel is smooth, fluid resistance is small.
6,Sensitive action, good sealing performance.
7, short valve stroke, the impact of the valve is small.
8, the overall structure, simple and compact, beautiful modeling.
9, long service life, strong reliability.