Stainless steel swing check valve
I. Introduction:
The H44H stainless steel swing check valve adopts a hydraulically streamlined contour design to achieve an optimal flow path. The internal design with a flow guide ensures minimal pressure loss. When installed at the water pump outlet, it can close rapidly before backflow occurs, preventing water hammer, water hammer noise and destructive impacts, thus achieving the purpose of preventing backflow and protecting equipment. It is a valve that controls the one-way flow of medium in pipelines, used to prevent medium backflow in pipelines. The stainless steel swing check valve is suitable for opening and closing devices that control the connection or cutoff of medium in medium and small-caliber pipelines under various pressures, temperatures and media; it automatically prevents fluid backflow relying on the weight of the disc and fluid pressure difference. Applicable media include water, oil products, steam, etc. It adopts an internal-mounted rocker swing structure, and all opening and closing parts of the valve are installed inside the valve body without penetrating the valve body. Except for the sealing gasket and sealing ring at the middle flange, there is no external leakage point overall, eliminating the possibility of external leakage of the valve. It has been widely used in many fields such as chemical industry, metallurgy, and pharmaceutical.
II. Features:
1. Carefully selected materials, in line with relevant domestic and international standards, with high overall material quality.
2. Advanced and reasonable matching of sealing pairs. The sealing surfaces of the disc and valve seat are surfaced with iron-based alloy or cobalt-based hard alloy, with good wear resistance, high temperature resistance, corrosion resistance and scratch resistance, and long service life.
3. The product is designed and manufactured in accordance with national standard GB/T12235.
4. Various piping flange standards and flange sealing types can be adopted to meet various engineering and user requirements.
5. A complete range of valve body materials, and gaskets can be reasonably selected according to actual working conditions or user requirements, suitable for various pressure, temperature and medium working conditions.
6. Check valves of different structural forms and connection forms can be designed and manufactured according to user requirements, for supporting use with various equipment.
III. Manufacturing Standards:
Design and manufacturing standards: GB/T 12235, AP600, API6D, ANSI/ASME.B16.34
Connection flange standards: GB/T 9113, API6D, ANSI/ASME B16.5
Pressure-temperature classes: GB/T 12224-2005, GB/T9131, ANSI/ASME.B16.34
Test and inspection standards: GB/T 13927-2008, JB/T9092, API598, API6D
IV. Parts Materials:
Valve Body | Valve Cover | Disc | Valve Seat | Applicable Medium | Applicable Temperature |
WCB | WCB+D507Mo | WCB+D577 | Water, Oil Products, Steam | 425 | |
ZG1Cr18Ni9Ti | 0Cr18Ni9+ | 0Cr18Ni9+ | Nitric Acid | 200 | |
ZG1Cr18Ni2Mo2Ti | CF8M+Stellite12 | ZG1Cr18Ni2Mo2Ti | Phosphoric Acid, Acetic Acid, Mixed Acid | 200 | |
ZG00Cr17Ni14Mo2 | CF3M+Stellite12 | CF3M+Stellite6 | Urea, Ammonia Carbamate Solution, Phosphoric Acid | 200 | |
ZG1Cr5Mo | ZG1Cr5Mo+ | ZG1Cr5Mo+ | Water, Oil Products, Steam | 550 | |
V. External Dimensions:
Nominal Diameter DN | L | D | D1 | D2 | b | Z-Φd | H | WT(Kg) |
H44H-16C H44W-16C H44W-16P H44W-16R H44W-16I | ||||||||
50 | 230 | 160 | 125 | 100 | 16 | 4-Φ18 | 135 | 21 |
65 | 290 | 180 | 145 | 120 | 18 | 4-Φ18 | 142 | 28 |
80 | 310 | 195 | 160 | 135 | 20 | 8-Φ18 | 165 | 38 |
100 | 350 | 215 | 180 | 155 | 20 | 8-Φ18 | 180 | 58 |
125 | 400 | 245 | 210 | 185 | 22 | 8-Φ18 | 210 | 92 |
150 | 480 | 280 | 240 | 210 | 24 | 8-Φ23 | 233 | 130 |
200 | 500 | 335 | 295 | 265 | 26 | 12-Φ23 | 304 | 210 |
250 | 550 | 405 | 355 | 320 | 30 | 12-Φ25 | 348 | 294 |
300 | 650 | 460 | 410 | 375 | 30 | 12-Φ25 | 390 | 367 |
350 | 750 | 520 | 470 | 435 | 34 | 16-Φ25 | 430 | 410 |
| Machinery & Equipment/Valves/Check Valves | |
