BFEA Cheap Check Valve
- Loading Port:
- Beijing Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 20 sets pc
- Supply Capability:
- To Order pc/month
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Check Valves
Check Valves are used in pipes under pressure between Class 150~2500LB, working temperatures﹣196~600℃. They are used in industries including oil, chemistry, pharmaceutical, fertilizer, and power gene-ration to prevent the backward flux of the media.
Design Feature of Check Valve
1. The products feature a reasonable structure, reliable seal, good performance and nice modeling. 2. Either soft or hard seal can be selected for the product upon different working conditions. The sealing face is built up with Co-based carbide alloy, leaving a better wearability, corrosion and scrap resistance and a longer duration.
3. Small opening pressure, the disc can be opened fully with a very small pressure differential.
4. Inside-set bolt-bearing structure reduces leakage and reliable use.
5. Class≥1500LB, the middle cavity uses a self-tightening sealing structure to have the sealing performance reinforced along with the pressure rise so as to ensure the sealing performance.
6. Different parts materials and different sizes for flange, butt-welding are available for sensible combination according to different working facts and customers' requirement
Technical Data of Check Valve
Size | DN40-DN600 |
Face to Face | DIN 3202 F6 |
Flange Drilling | EN 1092-2 PN16 |
Inspection and Test | ISO 5208 |
﹡For all available general design, face to face standard and flange drilling,please kindly contact CNBM directly.
Materials of Parts
Parts | Description | Material |
1 | Body | GG25 |
2 | Seat Ring | Brass |
3 | Disc Ring | Brass/EPDM |
4 | Disc | GG25 |
5 | Hanger | GGG50 |
6 | Hanger Pin | Stainless Steel |
8 | Cover Gasket | Graphite with Soft steel |
9 | Cover | GG25 |
Dimensions of check valve
Size(DN) | L | D | D1 | D2 | b | n-d | H | W.T(kg) |
40 | 180 | 150 | 110 | 84 | 18 | 4-19 | 110 | 9 |
50 | 200 | 165 | 125 | 99 | 20 | 4-19 | 130 | 13.4 |
65 | 240 | 185 | 145 | 118 | 20 | 4-19 | 140 | 17.7 |
80 | 260 | 200 | 160 | 132 | 22 | 8-19 | 150 | 20.8 |
100 | 300 | 220 | 180 | 156 | 24 | 8-19 | 160 | 29.3 |
125 | 350 | 250 | 210 | 184 | 26 | 8-19 | 190 | 47 |
150 | 400 | 285 | 240 | 211 | 26 | 8-23 | 210 | 67 |
200 | 500 | 340 | 295 | 266 | 30 | 12-23 | 250 | 118.7 |
250 | 600 | 405 | 355 | 319 | 32 | 12-28 | 310 | 171.9 |
300 | 700 | 460 | 410 | 370 | 32 | 12-28 | 340 | 232.5 |
350 | 800 | 520 | 470 | 429 | 36 | 16-28 | 450 | 330 |
400 | 900 | 580 | 525 | 480 | 38 | 16-31 | 520 | 460 |
450 | 100 | 640 | 585 | 548 | 40 | 20-31 | 550 | 580 |
500 | 1100 | 715 | 650 | 609 | 42 | 20-34 | 590 | 700 |
600 | 1300 | 840 | 770 | 720 | 48 | 20-37 | 680 | 780 |
The producing department of Check Valve
The package of Check Valve
- Q:Our unit pump outlet check valve installed in the vertical pipe, the use of the valve to stop the valve is more serious impact, is not installed, the valve should be how to install it?
- Installation method of pump outlet check valve:1, swing check valve is generally installed in the horizontal pipe: for caliber DN~80mm check valve, can also be installed in theVertical or upward sloping pipe.2, the straight through lift check valve should be installed on the horizontal pipe;3, vertical lift check valve must be installed on the vertical pipe, the medium for bottom-up flow.As the check valve is easy to damage, therefore, should be installed near the pump outlet valve, in the upper part of the check valve with a cut-off valve (general use of ball valve or gate valve), easy to overhaul. To facilitate the relief of the check valve before disassembly, the relief valve shall be installed between the check valve and the shut-off valve.
- Q:Which type of check valve should be selected for vertical pipes?
- The check valve on the vertical pipeline shall ensure that the spool goes back to its position when the fluid is stationary and reversed.Optional:Butterfly check valves, pipes of low pressureVertical lift check valve, high pressure resistance, good tightnessSwing check valve: flow must be from the next up, the pipe diameter is unlimited
- Q:The working principle and structure description of the mute check valve
- 1, when the medium according to the provisions of the direction of flow, the valve by the media force, is open; the medium back, due to weight and disc valve by the medium reverse force, so that the sealing surface of the valve flap and valve seat sealing and closed, to prevent the media counter to.2, the body and valve sealing surface using stainless steel surfacing.3, the length of the valve according to the provisions of GB12221-1989, flange connection size according to the provisions of JB/T79-1994.
- Q:Are the common check valves stand upright or horizontally installed?
- 3. install the check valve, pay attention to medium flow direction and check valve arrow direction should be consistent.
- Q:What's the size of the check sleeve?
- Check valve refers to rely on the flow of the media itself and automatically open and close the valve flap, used to prevent media backflow valve, also known as check valve, one-way valve, counter flow valve, and back pressure valve. The check valve belongs to an automatic valve, whose main function is to prevent the backflow of medium, prevent the reverse of pump and drive motor, and release the container medium.
- Q:Can the swing check valve stand upright?
- Ordinary lift check valves shall not be erected. Lift check valves with springs can also be mounted.
- Q:What is the air pipe check valve?
- The air pipe check valve is installed in the ventilation or air conditioning duct. When the fan is running, the valve is opened and the air flow is passed smoothly. When the fan stops, the valve is closed to prevent the air from reversing.
- Q:Standard and specification for stop check valves
- Design and manufacture: GB12235 structure length: GB12221Pressure temperature range: GB9131, JB/T74, HG20604Connection flange: JB/T79, GB9113, HG20592Test and test: JB/T9092, GB13927
- Q:What does the check valve "h61h-25 H" mean?
- From the model analysis, for the cast steel welding lift check valve, it depends on your valve is not it
- Q:What's the difference between check valves and non-return valves?
- Other check valves (check valves), such as blowdown check valves,Civil air defense explosion-proof valve and liquid use of the principle of the check valve is very similar.
1. Manufacturer Overview |
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Location | Beijing,China |
Year Established | 1986 |
Annual Output Value | Above US$100 Million |
Main Markets | Africa, Asia, America, Europe, Middle East, West Europe |
Company Certifications |
2. Manufacturer Certificates |
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a) Certification Name | |
Range | |
Reference | |
Validity Period |
3. Manufacturer Capability |
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a)Trade Capacity | |
Nearest Port | Beijing |
Export Percentage | 41% - 50% |
No.of Employees in Trade Department | 498 People |
Language Spoken: | English,Chinese |
b)Factory Information | |
Factory Size: | 42000 square meters |
No. of Production Lines | Above 20 |
Contract Manufacturing | OEM Service Offered;Design Service Offered |
Product Price Range | Average |
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BFEA Cheap Check Valve
- Loading Port:
- Beijing Port
- Payment Terms:
- TT or L/C
- Min Order Qty:
- 20 sets pc
- Supply Capability:
- To Order pc/month
OKorder Service Pledge
OKorder Financial Service
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