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Full EPDM NBR Rubber Lining Dual-Plate Check Valve
US$16.00-72.00
1 Piece
Sample price:US$0.00/piece.Request sample
Product profile
Customization
AvailableMedia
WaterDriving Mode
ManualModel NO.
H76 H77Connection Form
WaferStructure
Centre SealingSeal Form
Force SealedValve Stem
NormalWork Pressure
Low Pressure (Pn<1.6mpa)Working Temperature
Normal Temperature (-40°C<T<120°C)Material of Seal Surface
Metal Hard SealedValve Body
CastingStandard
JIS/DIN/ANSIApplication
Industrial Usage, Water Industrial Usage, Household UsageCertificates
ISO9001 CEBody
Cast Iron/ Ductile Iron/ Cast Steel/ Stainless SteDisc
Ductile Iron/ Stainless Steel/ Al-BronzeSeal Ring
NBR/ EPDM/ Alloy Steel/ Stainless SteelStem
Carbon Steel 45/ Ss416/ SS304Spring
Ss416/ SS304Design
ISO5211 En593 API609 BS5155 En1092Applicable Medium
Water, Oils, Chemicals, Gas etc.Working Pressure
Pn10 Pn16Transport Package
Plywood Non-FumigationSpecification
DN50-DN600Trademark
ZHONGHUI or CUSTOMIZEDOrigin
TianjinHS Code
8481804090Production Capacity
100000 Pieces Per YearKey features
Zero Leakage Seal: Multiple narrow bands and vulcanized seat ensure complete sealing with zero leakage.
Wide Material Selection: Body and disc available in Cast Iron, Ductile Iron, Stainless Steel, and Al-Bronze.
Fast Closing Speed: Strong anti-interference performance ensures rapid closing and low head loss.
Long Service Life: Withstands tens of thousands of opening and closing operations reliably.
Compact Structure: Short length design offers good rigidity and easy installation.
Versatile Application: Suitable for water, oils, chemicals, gas, and industrial usage scenarios.
Factory Direct Quality: 16 years experience with in-house foundry and assembly line for quality control.
Company profile

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2010-04-22 CertifiedNearest Port: Tianjin PortAverage Response Time: ≤24h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryTianjin Zhonghui Valve Industry Co., Ltd. is a China-based valve manufacturer established in 2017, with a 5,000 m² manufacturing plant, 16 employees, five production lines, and stated annual butterfly-valve output of 101,000 sets. Its product range includes butterfly, marine, check, gate, ball, and globe valves, with butterfly valves manufactured to DIN, ANSI, API, JIS, BS, and GB standards. The supplier reports ISO 9001:2015 certification and CE certification obtained in 2019. Export markets include Southeast Asia, the Middle East, and Europe, and trade records show transactions with a Philippine buyer in 2025 involving marine and butterfly valves. Evidence supports manufacturing and certification strengths, while after-sales capability, innovation depth, financial credibility, and broader customer-case history remain insufficiently documented.
Supplier typeThe supplier is identified as Tianjin Zhonghui Valve Industry Co., Ltd., a valve manufacturing company specializing in the design and manufacture of butterfly and other industrial valves. Although one record classifies the company nature as a trading company, the supplier type is explicitly stated as Manufacturer and its operations, products, and address support manufacturing activity.
CertificationsThe supplier states that it passed ISO 9001:2015 certification in 2019 and obtained CE certification in the same year, with ISO 9001:2015 specifically listed as a management-system certificate. These certifications provide explicit evidence of quality-management and European conformity credentials.
Production capacityProduction capability is supported by a 5,000 m² manufacturing plant, five production lines, stated output of 101,000 butterfly-valve sets, and a product range covering multiple industrial and marine valve types. The supplier also reports 6–10 quality-control staff and exports to Southeast Asia, the Middle East, and Europe.
Customization capabilityThe supplier states that it can produce wafer, lug, and double-flange butterfly valves according to DIN, ANSI, API, JIS, BS, and GB standards. This explicitly demonstrates configuration and standards-based customization for butterfly valves, though customization beyond these stated product formats and standards is not documented.
Client casesTrade records show three 2025 transactions involving marine storm valves and a JIS flange butterfly valve supplied to TAITECH MARINE SALES AND SERVICES in the Philippines. These records provide one identifiable buyer case and evidence of delivered product categories, but they do not establish a broad or extensive customer portfolio.
Product Q&A
Q:Can I have a sample order for valve?
A:
Definitely Yes. We welcome sample order to test and check quality. Mixed samples are acceptable.
Q:Can you OEM or ODM?
A:
Yes, we have a great research & development team. The products can be made according to your request. Please send us high resolution images, your logo and other materials needed. We will send you finished files for confirmation.
Q:Can you provide the relevant documentation and certificate?
A:
Yes, we can provide you with the documentation and certificate you need, IS09001:2000 international quality system certification, (CE) certification of the European Community, Det Norske Veritas (DNV) factory certification, Lloyd's Register (LR) factory certification, China Classification Society (CCS) quality system certification and the FM and UL certification of the US, Bureau Veritas(BV) ,American Bureau of Shipping(ABS) etc. Of course we can also provide you the test Report; Certificate of
Q:How to proceed an order for valve?
A:
Step1 let me know your requirements or application. Step 2 We quote according to your requirements or our suggestions. Step 3 Customer confirms the samples and places deposit for formal order. Step 4 We arrange the prodution.
Q:What is your terms of delivery?
A:
We accepte EXW,FOB,CIF,etc. You can choose the one which is the most convenient for you.
Send Inquiry
*To:
Tianjin Zhonghui Valve Industry Co., Ltd.
Tianjin Zhonghui Valve Industry Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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