Bidirectional Valve

①100% Product Inspection
②2 Way Valve with Umrella and Duckbill Combined
③Duckbill’s opening pressure ≤2Kpa
④Umbrella’s opening pressure depends on fitting

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Best Valve supplier That You Can Trust

1、Over hundreds of types for selection of Valve!

2、Bio-compatible, Food Grade, Rohs, Reach, Pahs Certifications for Material. Material Selection of Chemical,Oil,Medicine,Acid,Alkaline,Ozone, Gas Resistent. Air & Liquid flow test data. Aging, lifetime, chemical resistent test data by JTSEIKO’s Lab.

3、With designers, engineers, mould workshop to provide OEM & ODM service.

4、100% Production Inspection, 0 complains with millions of valve using. 


Duckbill Reboud

Duckbill Closure

JT1142 Air Flow Trend Chart L/min

If You Want To Know More Flow Data, Please Consult The Sales Engineer. The Flow Test Is Directly Related To The Hardness, Material, Pressure And Other Factors Of The Product. The Flow Data Reflected In This Article Is For Reference Only.

Product introduction and features

NBR/EPDM/FVMQ/FKM/SIL Material for selection

No backflow on 2Kpa and 100Kpa






Diameter: 11.68mm
Height: 7.8mm


Diameter: 10.0mm
Height: 6.2mm


Diameter: 11.74mm
Height: 9.44mm


Diameter: 11.58mm
Height: 8.21mm


Diameter: 15.0mm
Height: 9.8mm


Diameter: 12.5mm
Height: 9.0mm


Diameter: 11.68mm
Height: 7.8mm

Note:OEM & ODM services provided.

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Why Choose Us

OEM & ODM project

Our service includes design, research & innovation, mould process, lab test, mass production and quality control etc.

Product Design

1, Professional designer for ODM work with 20 years' experience.
2, Review with customers together to meet market's request.

Mould & Product Process

1, CNC, Sodick EMD Machine, CMM of Serein to gurantee mould size.
2, Mould review with customer's engineer together to make sure details.

Labratory & Quality Control

1, Quality control by ISO9001 standards with first article inspection, patrol inspection every 2 hours, OQC, IQC, PPAP standards etc.
2, Lab test includes air/water flow, aging, chemical/UV/high & low tempreture resistent, vibration, tensile, etc.

Mass Production

1, 100% test for every product.
2, Automatic assembling and testing is widely used.

rubber materials selection


Rubber Material Specification


1. Tempreture Endurance: -50°C to 200°C.
2. Non toxic and environmentally friendly.
3. Low mechanical strength and chemicals.


1. Temperature Endurance: 200°C.
2. Chemicals resistant: compatible to most of media such as oil , acid with well performance.
3. Poor on Low temperature: under -0°C cause disfunctiona.


1. Temperature Endurance: -30°C to 150°C.
2. Chemicals resistant: compatible to most of media such as oil , acid with well performance.
3. Poor on mechnical performance.


1. Temperature Endurance: -10°C to 100°C.
2. Chemicals resistant: compatible to most of media such as oil , acid.
3. Poor on Low temperature: under -0°C cause disfunctional.
4. Economic Price.


1. Temperature Endurance: -10°C to 120°C.
2. Chemicals resistant: Ozone resistance, ultraviolet resistance, weather resistance and aging resistance etc.
3. Poor on mechanical performance.

Note: Contact our engineer to learn more about materials’ info, such as NR, CR, ACM, etc.

Plant environment

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Contact Information

+86 183 5916 3977
70# Rujiang Road, Mawei District, Fuzhou, China

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