
Aluminium Bronze Dual Plate Wafer Butterfly Check Valve
Product Introduction
We insist on quality control starting from every component, focusing on every detail, providing customers with reliable, high-quality and efficient Forged 1 Piece Ball Valve, Threaded End S Type Globe Valve, Clamp Ball Valve. We believe that integrity is the foundation of all cooperation, tolerance is the premise of solving problems, innovation is a sharp weapon for development and service is the basis for creating value. Speeding up product innovation can effectively improve our company's profitability and create more value. Our company always adheres to the principle of 'survive by quality, develop with service, win customers by profession' and keeps improving and keep pace with the times. We are constantly pushing forward the development of relevant applications and continuously developing forward-looking products and application technologies.



Main parts and materials
Type | valve |
Valve disc | Spring |
H71H-16Q H71H-25Q | QT400-15 | 25 | 50CrVA |
H71W-25H H71W-40H | 2Cr13 | 1Cr13 | 1Cr18Ni9 |
H71W-25P H71W-40P | ZG1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti |
Performance specification
Type | Nominal pressure | Test pressure | Working temperature | Applicable temperature | |
| Housing | Seal up | ||||
H71H-16Q | 1.6 | 2.4 | 1.76 | ≦235℃ | Water, steam,oil |
H71H-25Q H71W-25H | 2.5 | 3.75 | 2.75 | ≦235℃ ≦300℃ | |
H71W-25P | ≦200℃ | Nitric acid and other corrosive media | |||
H71W-40H | 4.0 | 6.0 | 4.4 | ≦300℃ | |
H71W-40P | ≦200℃ | Water, steam | |||
Main outer size
Nominal diameter | D | |||
DN | L | 1.6 | 2.5 | 4.0 |
15 | 25 | 48 | 48 | 48 |
20 | 31.5 | 58 | 58 | 58 |
25 | 35.5 | 68 | 68 | 68 |
32 | 40 | 80 | 80 | 80 |
40 | 45 | 90 | 90 | 90 |
50 | 56 | 105 | 105 | 105 |
65 | 63 | 125 | 125 | 125 |
80 | 71 | 140 | 140 | 140 |
110 | 80 | 160 | 165 | 165 |
125 | 110 | 190 | 195 | 195 |
150 | 125 | 215 | 225 | 225 |
200 | 160 | 270 | 285 | 390 |
250 | 200 | 330 | 340 | 350 |
300 | 250 | 385 | 400 | 415 |
Product Description:
Materials are usually: cast steel, cast iron, alloy steel, stainless steel, CF8 (m), CF3 (m). Forged steels include A105, f304 (L), f316l, etc.
Function of check valve: to ensure the directional flow of medium in the pipeline without backflow. The bottom valve of water pump suction pipe also belongs to check valve.
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:Our price fluctuates with raw materials and exchange rate.Please leave your contact information and give you a new quotation as soon as possible.
Packing: wooden case, wooden pallet or packing method specified by customers.
FQA:
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 continuous investment in Aluminium Bronze Dual Plate Wafer Butterfly Check Valve, including product research and development , market development and marketing, makes the industry look at us with new eyes. We attach importance to every process and detail, strive to be perfect, constantly improve the production process, optimize the construction scheme and effectively protect the interests of customers. Our company constantly creates new value to provide a colorful and dreamy future for all mankind through the continuous pursuit of information technology innovation.
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