Product Overview
The rotary check valve, also known as a one-way valve or check valve, is used in pipelines where the medium flows in a single direction.
The valve prevents backflow of the medium in the pipeline. This type of valve belongs to the automatic valve category and only allows the medium to flow in one direction.
Flow in one direction to prevent accidents. Primarily used in the petroleum, chemical, and pharmaceutical industries.
On pipelines for fertilizers, electricity, etc.
Product Features
The valve adopts an internally mounted rocker-arm rotary opening structure, with all operating components housed within the valve body. This design eliminates any external leakage points, effectively preventing medium leakage.
The connection between the rocker arm and the valve disc employs a spherical joint structure, granting the valve disc a certain degree of freedom over a 360° range with minimal positional compensation.
Technical Parameter
Model: H44W
Design and manufacturing standard: GB/T 12235
Nominal pressure: 1.0/1.6 MPa
Sealing test pressure: 0.6–0.7 MPa
Shell test pressure: 1.5–2.4 MPa
Applicable media: water, steam, oils, etc.
Media temperature: ≤425°C
Sealing test pressure: 0.6–0.7 MPa
Shell test pressure: 1.5–2.4 MPa
Connection type: Flange connection
Connection standard: JB/T79
Connection type: Flange connection
Structural Dimensions
Nominal diameter | PN | size (mm) |
Inch | mm | L | D | D1 | D2 | b-f | Z-0d | H |
2" | 50 | 16 | 230 | 160 | 125 | 100 | 16-3 | 4-18 | 135 |
2.5” | 65 | 16 | 290 | 180 | 145 | 120 | 18-3 | 4-φ18 | 140 |
3" | 80 | 16 | 310 | 195 | 160 | 135 | 20-3 | 8-φ18 | 145 |
4” | 100 | 16 | 350 | 215 | 180 | 155 | 20-3 | 8-φ18 | 165 |
5" | 125 | 16 | 400 | 245 | 210 | 185 | 22-3 | 8-φ18 | 250 |
6" | 150 | 16 | 480 | 280 | 240 | 210 | 24-3 | 8-φ23 | 295 |
8" | 200 | 16 | 550 | 335 | 295 | 265 | 26-3 | 12-φ23 | 315 |
10" | 250 | 16 | 650 | 405 | 355 | 320 | 30-3 | 12-φ25 | 430 |
12" | 300 | 16 | 750 | 460 | 410 | 375 | 30-4 | 12-φ25 | 480 |
14" | 350 | 16 | 850 | 520 | 470 | 435 | 34-4 | 16-φ25 | 500 |
16" | 400 | 16 | 950 | 580 | 525 | 485 | 36-4 | 16-φ30 | 520 |