Best Price Check Valve

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Loading Port:: Qingdao 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

﹡For other material request,please kindly contact CNBM directly.

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

Check Valve

The deatail and the package

Check Valve

Q: Which kind of steam check valve is good?: Steam check valve selection spring pressure check valve is better, can be sealed tight.Check valve, also known as one-way valve or check valve, its role is to prevent the medium back in the pipeline. Pump water off the bottom valve check valve also belongs to class. The opening and closing parts depend on the flow of the medium and the power is turned on or off by itself. The valve that prevents the backflow of the medium is called a check valve. Check valves belong to the automatic valve, mainly used for one-way flow of media channels, allowing only medium to flow in one direction, to prevent accidents.

Q: Does FOTILE hood have check valve?: The range hood is now equipped with a check valve at the top, also called a check valve.However, no matter how high gear or general lampblack machine, the built-in check valve is not very tight.

Q: What's the difference between the cut-off, check, check, and stop valves three? Better picture,: Stop check valve: when the handwheel is rotated so that the valve stem rises, the disc does not rise together, but only the valve clack is released.

Q: How much is the check valve for the concrete pump?: 31 concrete pump price ranging from 15W to 60W, different configurations have different prices, which one do you want?

Q: Exhaust hood at home, the wind back, I think it may be smoke hoods mouth check valve blocked, it cleaned it. Then, when the upper air pipe is not installed, the ventilator can work normally, but the air pipe is plugged in and is not ventilated at once. It should be the check valve at the home flue (that is, where the common air duct is attached), but this part of the pipe is inside the kitchen ceiling. Is there a way to repair or clean the check valve without removing the ceiling? If you look for professionals to come home maintenance, how much is the approximate cost?: First, the smoke control valve at the junction of the original building is installed, and this demolition does not have nothing to do with the property.The check valve on the exhaust flue has its function, but also increases the resistance of the exhaust air, and the more the number on the flue, the greater the resistance. And in use, often due to sticky oil fumes, a long time, it will be soiled. So, in the decoration will not be retained in the main flue that check valve, it should be removed, (during the renovation, in the district garbage can be seen everywhere) Only use the machine belt, because its location can be cleaned regularly.Two, according to what your text describes, it should be that the check valve on the main flue is stained. Because in addition to this small piece will cause disruption, there is no other blocking factors. It is unlikely, because the hose folded into 90 degrees into the shed, the naked eye can not see it. But you can use wire to touch it, and if you can push it open, you can try again. However, it is estimated that the shed is still of little significance.The kitchen ceiling is usually plastic buckle or aluminum pinch plate, demolition does not cost anything.It is a reminder: remove the check valve, hose in the crossing installation process should be carefully done, it is best to buy a duct flange, glass sealant with a circle, and then buckle in the flue, the hose into the flange, carefully wrapped with tape, confirmed that no leakage shall prevail this is because, in the shed, and then deal with trouble ah.If the check valve is well connected with the flue port, it is possible to remove the check plate (plate) and make it easier to use the original chassis.

Q: How to install the kitchen flue check valve?: To see what the pipeline, the installation of the location of pipe drilling (Professional) wall pipe, according to the back valve installation size, with percussion drilling, with expansion bolts fixed. The calcium carbonate pipeline is directly fixed with screws (hardness is better)

Q: Install check valve is not afraid of water, in case the back of the water pollution?: The check valve is to prevent the backflow of water from the pipe after the pump stops. If the pipe is very large and the water is flowing back every time, isn't it a waste?If the water tank or tank pipe at the bottom of the pool, it must check valve, or a box of water will drain off, if the line is not big, the water inflow of the water is from the top of the box, it can also be installed check valve. Is not loaded with pipeline and process!

Q: What is the HC41X-16Q model of the optical valve? What is its main function?: The HC41X-16Q check valve for the light valve is a flanged silent check valve.HC41X-16Q flanged check valve features:An acoustic check valve whose structural characteristics allow only medium to flow in one direction and prevent flow in the direction.

Q: How to install the water pipe check valve?: The pipe type check valve is mostly in the form of clip type installation, which is suitable for the place where the installation distance is not enough!Understand more direct CALL I ~ user name is my Unicom number

Q: Installation position of air pipe check valve: If you are not in a hurry, leaving QQ, etc. I reply to your husband for this afternoon, he is very professional.

We are one of the largest enterprises in China, integrating research, development, production, marketing and commercial services of stationery.And it became the largest manufacture of the writing instruments in Asia, with the scale of production ranked the first in the consecutive 12 years in China, and the sales ranked the third in the global industy, and the strength ranked within the eighth.

1. Manufacturer Overview

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

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

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