
Cast Iron Double Disc Wafer Type Check Valve
Product Introduction
Stable quality, good reputation and reasonable price are our promises. We uphold the concept of quality first and continuous innovation and become the benchmark in the Manual Flanged Ball Valve, Sanitary Respirator, Sanitary Tri Clamp Ball Valve industry. The company insists on the mode and concept of modern enterprise management, "people-oriented" throughout the whole process of enterprise management. Our company's development team with rich practical experience has successfully developed several series and dozens of varieties of equipment. The products are stable and widely praised by customers.




Performance parameter
Nominal diameter | 40-700mm |
Pressure Nominal pressure | 1.0-2.5MPa |
Applicable medium | Freshwater, sewage, seawater, air, steam, food, medicine, various oils, acids |
Proper temperature | -15W150P |
Structure composition
Part Name | Materiall | ||
| EH、AH | BH | MH I | |
Valve body | Gray cast iron, ductile cast iron WCB^ CF8, CF8M, Aluminum bronze | Gray cast iron, ductile cast iron WCB, CF8, CF8M^ Aluminum bronze | WCB CF8 CF8M Aluminum bronze |
Valve seat | NBR, PEDM, FR | Ductile iron lined rubber | NBR, PEDM, FR |
Valve plate | Nodular cast iron CF8 CF8M | CF8 CF8M | WCB CF8 CF8M Aluminum bronze |
Shaft | Stainless steel 304/316 | 304/316 | WCB CF8 CF8M Aluminum bronze |
Spring | 304 | - | |
Main connection size | unit:mm | |||||||
Nominal diameter | D | D1 | D2 | L | R | t | (kg) weight | |
DN(mm) | NPS(inch) | |||||||
40 | 1.5" | 92 | 65 | 43.3 | 43 | 28.8 | 19 | 1.5 |
50 | 2" | 107 | 65 | 43.3 | 43 | 28.8 | 19 | 1.5 |
65 | 2 1/2" | 127 | 80 | 60.2 | 46 | 36.1 | 20 | 2.4 |
80 | 3" | 142 | 94 | 66.4 | 64 | 43.4 | 28 | 3.6 |
100 | 4" | 162 | 117 | 90.8 | 64 | 52.8 | 27 | 5.7 |
125 | 5" | 192 | 145 | 116.9 | 70 | 65.7 | 30 | 7.3 |
150 | 6" | 218 | 170 | 144.6 | 76 | 78.6 | 31 | 9.0 |
200 | 8" | 273 | 224 | 198.2 | 89 | 104.4 | 33 | 17 |
250 | 10" | 328 | 265 | 233.7 | 114 | 127 | 50 | 26 |
300 | 12" | 378 | 310 | 283.9 | 114 | 148.3 | 43 | 42 |
350 | 14" | 438 | 360 | 332.9 | 127 | 172.4 | 45 | 55 |
400 | 16" | 489 | 410 | 381.0 | 140 | 197.4 | 52 | 75 |
450 | 18" | 539 | 450 | 419.9 | 152 | 217.8 | 58 | 101 |
500 | 20" | 594 | 505 | 467.8 | 152 | 241 | 58 | 111 |
600 | 24" | 690 | 624 | 572.6 | 178 | 295.4 | 73 | 172 |
700 | 28" | 800 | 720 | 680 | 229 | 354 | 98 | 219 |
Application: in the pipeline of petroleum, chemical, pharmaceutical, chemical fertilizer, electric power industry and other working conditions, the suitable medium is water, oil, steam, acid medium, etc.
Price:The price is changing because of material cost and exchange rate. Please give me your contact information, I will update the newest price to you
Packing: wooden case, wooden pallet or packing method specified by customers.
FQA:
1.What is the difference between A105 and WCB in valve material?
1). Different materials
Carbon steel for A105 valve refers to a series of forged steel in ASTM A105 standard, and the material used is forged Bai steel. The carbon steel for WCB valve refers to WCB and WCC cast steel in ASTM A216 standard, and the material used is cast steel.
2). Different molding methods
A105 valve using plastic deformation, forging workpiece can improve the internal structure, good mechanical properties, uniform grain. WCB valve is formed in liquid state, which will cause structural segregation and defects. Of course, casting has its advantages. It is difficult to open the mold when forging complex parts, so casting has been adopted.
3). Different performance
The quality of A105 valve forging steel is higher than that of steel casting, which can withstand large impact force, and the mechanical properties of plasticity, toughness and other aspects are also higher than that of WCB steel casting. Therefore, forging steel should be used for all important machine parts.
2.What are the structural characteristics of swing check valve?
There are 9 structural features of swing check valve
1). The length of the structure is short, which is only 1 / 8~ 1 / 4 of that of the traditional flange check valve
2). Small size, light weight, its weight is only 1 / 20 ~ 1 / 4 of the traditional flange check valve
3). The valve disc closes quickly and the water hammer pressure is small
4). Horizontal or vertical pipe can be used, easy to install
5). The flow channel is smooth and the fluid resistance is small
6). Good sealing performance, sensitive action
7). The disc stroke is short and the valve closing impact is small
8). Overall structure, simple and compact, beautiful shape
9). Long service life and high reliability
Our company does not have a distributor, are manufacturers direct sales, and we have the right to export, now our Cast Iron Double Disc Wafer Type Check Valve have been exported to many countries and regions. Welcome to check out our company. We have our own team of engineers and technicians who use free equipment to maintain high efficiency and flexibility in manufacturing.
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SPEC DATA
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