Best Price Check Valve

Ref Price:

Loading Port:: Qingdao Port

Payment Terms:: TT or L/C

Min Order Qty:: 20 sets pc

Supply Capability:: To Order pc/month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

You Might Also Like

Wafer Dual Plate Check Valve

Wafer Check Valve Universal Standard

Wafer Type Double Door Butterfly Check Valve

Threaded Type Ball Check Valve

Thread Type Ball Check Valve PN10/16

Lift Check Valve Cast Iron

Swing Check Valve

valve of china 3900

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:The working principle of the vacuum check valve: The lift check valve can be divided into two types: vertical and horizontal. Swing check valve is divided into single, double valve and multi flap type of three. Butterfly check valve for straight through, more than a few kinds of check valve, in the form of connection can be divided into thread connection, flange connection and welding three.

Q:What does the H/F/P stand for in the check valve H41H/H41F/H41P?: Respectively, the valve seat sealing surface is made of alloy / fluorine plastic / stainless steel.

Q:Does the check valve differ in front of the water meter and press it behind the water meter?: Check valve is mainly to prevent water backflow, backflow, easily lead to water damage

Q:Is it necessary to install a check valve in the piston refrigeration compressor?: The small refrigeration system does not require the installation of a special check valve or check valve.Only the larger refrigeration system needs in the pipeline are arranged on the corresponding one-way valve or check valve when using the piston compressor, the main purpose is to prevent too much liquid refrigerant migration to the piston compressor resulting in frozen oil is liquid refrigerant dilution and lubrication performance variation, the compressor with varying degrees of lack of oil operation.

Q:Why is the water ring vacuum pump equipped with check valves?: The check valve is a one-way valve, the instantaneous vacuum of the stopping pump is higher than the pump cavity, and the gas enters the pump cavity from the exhaust port, and the water pressure is connected to the vacuum pipeline, and the function of the check valve is to prevent water from entering the pipeline

Q:Butterfly micro stop type check valve HH46XP-10Q, what does the letter mean?: Do not know what you say is the manufacturer of valves, in general, many models are manufacturers themselves according to the specifications of their products set.

Q:With no negative pressure water supply, the pump is equipped with a check valve, the construction ring network also needs to install check valve?: With no negative pressure water supply, the pump is equipped with a check valve, the construction ring network also needs to install a check valve, or else the water pump may enter the ring network.

Q:An introduction to the check valve: The check valve, also known as reverse flow valve, check valve, back pressure valve, one-way valve. This kind of valve is automatically opened and closed by the force produced by the flow of the medium of the pipeline itself. It belongs to an automatic valve.

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 are the ten major brands of copper check valves?: I knew that:1, Amico2, Jie Kelong3 crown4, good day5, KITZ

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