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ISO9001 Certified DN350 Rubber Bellow with Flange Sewage Duckbill Check Valve with 18months Warranty and 20Years' Experience

ISO9001 Duckbill Check Valve

18months Warranty Rubber Bellow with Flange

20Years' Experience Sewage Duckbill Check Valve

Place of Origin:

China

Brand Name:

JINGNING

Certification:

Model Number:

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ISO9001 Certified DN350 Rubber Bellow with Flange Sewage Duckbill Check Valve with 18months Warranty and 20Years' Experience

Product Details

Size:

DN350

Certificate:

ISO9001,CE，ZTC

Connection:

Clamp

Warranty Time:

18months

Rubber Material:

EPDM,NBR,SBR,NR

OEM:

Support, 20Years' Experience

Key Word:

Rubber Bellow With Flange

Color:

Black

Payment & Shipping Terms

Minimum Order Quantity

Price

$10.3~$98.6/pc

Packaging Details

Wooden Box

Delivery Time

5-8 work days

Payment Terms

L/C,D/A,D/P,Western Union,T/T,MoneyGram

Supply Ability

5000 Sets/Week

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ISO9001 Certified DN350 Rubber Bellow with Flange Sewage Duckbill Check Valve with 18months Warranty and 20Years' Experience

Get Best Price

86-150-93112546

joints@chnflex.com

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Product Description

Rubber Bellow with Flange Sewage Duckbill Check Valve Clamp Connected

A Rubber Bellow with Flange Sewage Duckbill Check Valve (Clamp Connected) is a flexible rubber unit that provides vibration absorption and pipe movement compensation while integrating a clamp-connected duckbill check valve to allow forward flow and prevent backflow in sewage systems. ISO9001 Certified DN350 Rubber Bellow with Flange Sewage Duckbill Check Valve with 18months Warranty and 20Years' Experience 0

Features & Benefits

100% full rubber structure, meeting various anti-corrosion requirements (different rubber materials available)
No blockage with excellent sealing properties
Long service life, maintenance-free operation
No moving parts, mechanical components, electric signals or manual operation required
Opens with water head pressure as low as 0.01M
Minimizes head loss in systems
Customizable installation forms to meet specific requirements
Easy installation with low operational costs

Technical Specifications

Pipe Size ID	Length	Height	Flange Outside Diameter
DN(mm) \| NPS	L(mm)	H	A
50 \| 2	150	100	150
80 \| 3	220	140	200
100 \| 4	250	200	225
150 \| 6	340	265	275
200 \| 8	420	325	338
250 \| 10	520	425	400
300 \| 12	620	525	485
350 \| 14	700	625	525
400 \| 16	800	725	588
450 \| 18	900	825	625
500 \| 20	980	925	688
600 \| 24	1120	1025	800
700 \| 28	1180	1125	969
800 \| 32	1350	1400	1080
900 \| 36	1500	1525	1150
1000 \| 40	1600	1725	1325
1200 \| 48	1840	1950	1485

For custom requirements or special flange specifications, please provide detailed drawings and specifications for customized production.

Product Advantages

Competitive factory pricing
17 years manufacturing experience with 5 years export expertise
Rigorous quality control exceeding industry standards
Custom molds available for OEM production
Free samples available for quality verification
Large inventory for immediate availability

Applications

The integrated flange and duckbill check valve design enables easy installation. The all-rubber construction prevents blockage and jamming while allowing solid particles to pass through, reducing maintenance costs. Primary applications include:

Waterproof systems
Drainage systems
Pump outlets
Lifting pump stations
Submerged aeration systems

Our Services

24-hour customer support
Free product samples
Custom manufacturing services
Technical drawings provided
Multiple payment options
Factory quality inspections
Extended warranty coverage
Secure transportation packaging

Frequently Asked Questions

Q1: What's the rubber material of Rubber Bellow with Flange?

A1: Available in EPDM, CR, NBR and other materials depending on working environment and media.

Q2: Is the flange galvanized?

A2: Available in electronic galvanized, hot dip galvanized, or painted flange options.

Q3: What is the minimum order quantity?

A3: 1 piece, available as sample for quality testing before bulk orders.

Q4: Can products feature custom logos?

A4: Yes, we provide OEM/ODM services including custom branding.

Q5: Are technical drawings available?

A5: Yes, we provide detailed product drawings upon request.

Q6: Can I request product samples?

A6: Yes, we provide free samples for quality evaluation.

Tags：

ISO9001 Certified DN350 Rubber Bellow with Flange Sewage Duckbill Check Valve with 18months Warranty and 20Years' Experience

ISO9001 Duckbill Check Valve

18months Warranty Rubber Bellow with Flange

20Years' Experience Sewage Duckbill Check Valve

Customized DN300 EPDM NBR Rubber Duckbill Check Valve with 20 Years' Experience for Wastewater Applications

Corrosion Resistant Maintenance Free Duckbill Check Valve with ZTC Certification for Waterproof Systems

Heat-Resistant Inline Rubber Duckbill Check Valve with 1.0Mpa and 1.6Mpa Pressure Ratings in Black

ISO9001 Certified DN350 Rubber Bellow with Flange Sewage Duckbill Check Valve with 18months Warranty and 20Years' Experience

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