
Aluminium Bronze/Stainless Steel Wafer Dual Plate Check Valve
Product Introduction
We are very proud of the real and stable quality of our Steel Globe Valve Russian, Electric Butterfly Valve, Sanitary Extension Pipe Connecter, our goal is to provide competitive prices and quality service to our customers. We will continue to create brilliance, and we will develop steadily in the spirit of continuous innovation, better quality and service with our all customers. We take 'the customer's continuous satisfaction is our work standard' as the tenet and take the win-win enterprise culture as the guidance. Industry status is the symbol of enterprise development strength, profitability is the mission of the enterprise, is the guarantee and symbol of building a century old enterprise. No matter how demanding the customer is, how urgent the delivery date is, and how complicated the after-sales service is, we are able to cope with it.



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
We believe that prolonged time period partnership is really a result of top of the range, benefit added provider, prosperous knowledge and personal contact for Aluminium Bronze/Stainless Steel Wafer Dual Plate Check Valve. Our company's assessment is in-depth, we implement incentive measures, our project team cohesion is strong, team members are full of sense of achievement and role allocation is appropriate. We aim to lead the global industrial development, focusing on the embodiment of scale, technology and efficiency leadership.
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