How can I check the quality of a bulk order?

We provide preproduction samples, quality certs (measurement report, material data sheet, COO, COA), and accept third-party inspections like SGS, TUV, and BV.

How do you select the raw compound for my application?

With years of experience, we help select the material that best suits your needs while keeping material costs in mind.

Do you use international standards for rubber products?

Yes, we mainly use ASTM D2000 for rubber material quality, with tolerances per ISO3302 and ISO2768.

Can you supply different color materials?

Yes, we can produce custom molded rubber and silicone products in different colors; a color code is required for orders.

What materials are available for production?

Available materials include NBR, EPDM, Silicone, FKM, Neoprene (CR), NR, IIR, SBR, ACM, AEM, and Fluorosilicone (FVMQ).

Rubber Part Cup Diaphragm Rubber PTFE Diaphragm Rubber Membrane

Name: Rubber Part Cup Diaphragm Rubber PTFE Diaphragm Rubber Membrane
Brand: Xiamen Best Seal Imp. and Exp. Co., Ltd.
SKU: 2178288495

Fujian, ChinaXiamen Best Seal Imp. and Exp. Co., Ltd.

US$0.10-0.90

100 Pieces

Sample price:US$50.00/piece.Request sample

Product profile

Customization

Available

Type

Pump Casing

Product Name

Rubber Diaphragm

Compound Material

Meet ASTM D2000, Can Be Rosh, Reach Compliance

Hardness

From 20 ~ 90 Shore a

Color

as Per Request

Size

Customize Size

Package

PE Bag, Carton

Sample

Sample Avaliable

Advantage

Smooth Surface with Small Parting Line

Transport Package

PE+Carton

Specification

Per drawing

Trademark

Origin

China

HS Code

4016939000

Production Capacity

More Than 50, 000, 000PCS/Month

Key features

Customizable Size and Color: Size and color can be customized according to specific requirements.

High-Pressure Capability: Fabric-reinforced diaphragms designed to operate under high pressure conditions.

100% Water Leakage Testing: Every product undergoes rigorous water leakage testing before shipment.

Multiple Material Options: Available in NBR, EPDM, Silicone, FKM, CR, and other specialized compounds.

Comprehensive Certifications: ISO9001, KTW, W270, WRAS, ACS, ROHS, and REACH compliant materials.

OEM and ODM Services: Full customization support from samples, designs, or 3D drawings.

Precision Manufacturing: Precisely located holes and smooth surfaces with evenly distributed rubber cover.

Company profile

Importers and ExportersManagement CertificationHigh Repeat Buyers ChoiceFull Customization

Xiamen Best Seal Imp. and Exp. Co., Ltd.

Fujian, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 12 years CertifiedNearest Port: Xiamen PortAverage Response Time: ≤5.67h

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company in Xiamen, with a business scope covering mold sales, mold manufacturing, professional design services, material research and development, and related product sales. It offers multiple forms of customization, ODM, and OEM services, and reports 12 years of export experience. Quality procedures are documented and uniformly followed, and ISO9001:2015 certification is reported. However, the supplier is not classified as a professional technical supplier, does not provide 3D software design services or SDKs, reported no new products in the past year, and lacks stated inventory, overseas warehouse, overseas branch or agent, showroom, and valid manufacturing-capacity contracts with affiliated subcontractors. Production equipment improvements are described, but manufacturing capacity is not fully verified. Financial records are referenced for 2022–2024, without sufficient performance details for a financial assessment. Customer-related evidence is limited to OEM...

CertificationsThe supplier reports holding an ISO9001:2015 certificate. This is explicit evidence of a quality-management certification, although no additional certification details or certificate scope are provided.

After-Sales capabilityThe supplier reports no in-stock service capacity, overseas warehouse, overseas showroom, overseas agents or branches, and no overseas service countries. These limitations indicate weak documented overseas service infrastructure, although the slices do not directly describe warranty or complaint-handling procedures.

R&D capabilityThe supplier does not have an available SDK, is not classified as a professional technical supplier, and reported no new products in the past year. It does provide ODM services and describes investment in advanced automated machinery, but the available evidence does not establish strong product or technology innovation capability.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full customization, minor customization, flexible customization, and ODM services. This is direct evidence of broad customization capability, although 3D software design services are not provided.

Product Q&A

Q:What are the payment terms?

We accept T/T 50% deposit and 50% balance against copy of B/L or L/C at sight. West Union, VISA, and Paypal are also accepted.

Q:What is the normal lead time for product orders?

Average lead times for prototypes are 7-10 days. If tooling is involved, production tooling takes 10 days, and average production time after sample approval is 2-3 weeks.

Q:What is your standard packing method?

All goods are packed by carton box and loaded with pallets. Special packing methods can be accepted when needed.

Q:What is your monthly production capacity?

Production capacity depends on the model, but we produce more than 1500 tons of rubber materials per month.

Q:What certificates do you have?

We are ISO9001:2008 certified by SGS. We also have various rubber compounds approved by KTW, W270, WRAS, ACS, AS4020, EN681, EN549, ROHS, and REACH.