This page is not the official website. Generated by AI, does not constitute any advice. If needed, please click here to visit the corresponding official website.

Precision Rubber Diaphragm
Manufacturer & Supplier

Based in China, General Sealtech delivers high-performance, custom-engineered diaphragms for pneumatic actuators, turbochargers, gas meters, control valves, and industrial applications. With over 23 years of technical expertise, we are your trusted OEM partner.

Explore Products Contact Us

Your Trusted Diaphragm Solutions Partner

General Sealtech has evolved from a factory with 15 years of experience into a research-driven innovator in the diaphragm field. We specialize in fabric-reinforced rubber diaphragms, PTFE diaphragms, and custom OEM solutions for industries including automotive, HVAC, energy, and control systems.

Our precision-engineered products are designed to withstand extreme chemical, thermal, and pressure environments. Using advanced materials like silicone, NBR, EPDM, and PTFE, reinforced with woven polyester, nylon, or cotton, we ensure reliability and longevity in every application.

23+
Years of Experience
50+
Global Clients
100%
OEM Customization
200+
Material Combinations
Rubber Diaphragm Manufacturing Process

Our Product Range

We manufacture a full range of high-performance diaphragms tailored to your application needs. From turbo actuators to gas meters, our products deliver reliability, durability, and precision.

Rubber Diaphragms

Rubber Diaphragms

Fabric-reinforced rubber diaphragms for control valves, regulators, and pneumatic actuators. Available in NBR, EPDM, silicone, and custom elastomers.

  • • Thickness: 0.2mm to 3.0mm
  • • Fabric: Polyester, Nylon, Cotton
  • • Temp Range: -40°C to +200°C
Rolling Diaphragm

Rolling Diaphragm

High-efficiency rolling diaphragms for servo actuators and precision motion control. Low friction, long cycle life.

  • • Material: NBR/Fabric or Silicone/Fabric
  • • Stroke: Up to 150mm
  • • Pressure: Up to 10 bar
LPG CNG Diaphragm

LPG / CNG Diaphragm

Fuel-resistant diaphragms for LPG and CNG regulators. Designed for high durability in hydrocarbon environments.

  • • Material: NBR or HNBR with fabric
  • • Compliance: ISO 15500, ECE R110
  • • Life Cycle: 1M+ cycles
Teflon / PTFE Diaphragm

Teflon / PTFE Diaphragm

Chemically inert PTFE diaphragms for aggressive media. Ideal for semiconductor, pharmaceutical, and chemical processing.

  • • Material: PTFE or PFA
  • • Temp Range: -200°C to +260°C
  • • FDA & USP Class VI Compliant
Solenoid Pulse Valve Diaphragms

Solenoid Pulse Valve Diaphragms

Fast-response diaphragms for dust collector systems. High fatigue resistance and precise actuation.

  • • Material: NBR or EPDM
  • • Size: 1" to 3"
  • • Cycle Life: 100,000+
Turbo Actuator Waste-gate Diaphragms

Turbo Actuator Waste-gate Diaphragms

High-temperature diaphragms for turbocharger actuators. Engineered for reliability under extreme thermal cycling.

  • • Material: Silicone/Fabric
  • • Temp: Up to 230°C
  • • OEM Design Support Available
Diaphragm Valve Pump Diaphragms

Diaphragm Valve & Pump Diaphragms

Durable diaphragms for chemical dosing, water treatment, and process control pumps.

  • • Material: EPDM, Viton, PTFE
  • • Sizes: 1/4" to 4"
  • • Custom Molding Available
Gas Meter Diaphragms

Gas Meter Diaphragms

Precision diaphragms for residential and industrial gas meters. Long life, low leakage, high accuracy.

  • • Material: NBR/Fabric
  • • Standards: EN 1359, AGA
  • • Life: 10+ years
OEM Diaphragm

OEM Diaphragm

Full custom OEM service from design to mass production. We replicate or improve existing diaphragms based on samples or drawings.

  • • Reverse Engineering
  • • Mold Design & Fabrication
  • • Free Prototyping

Why Choose General Sealtech?

We go beyond manufacturing — we innovate, support, and partner with you.

Material Expertise

200+ elastomer and fabric combinations for optimal performance in any environment.

OEM & Custom Design

Full design integration, reverse engineering, and free prototyping for your unique needs.

Technology Transfer

Licensed semi-automatic production line setup, mold design, and process training.

Free EGR Diaphragm Design

No cost for mold, design, or samples — we cover everything for EGR valve development.

23+
Years in Industry
500+
Custom Projects
99.8%
Quality Yield
24h
Sample Turnaround

Frequently Asked Questions

What materials do you use for diaphragms?

We use NBR, EPDM, silicone, Viton, HNBR, and PTFE, reinforced with polyester, nylon, or cotton fabric depending on the application.

Can you replicate an existing diaphragm?

Yes. Send us a sample or drawing, and we’ll reverse engineer and produce an exact or improved version with free prototyping.

Do you offer free samples?

Yes, we provide free samples for qualified OEM and high-volume buyers. Contact us with your requirements.

What is your production lead time?

Standard lead time is 15–20 days for custom orders. Urgent orders can be expedited.

Do you provide technical support?

Yes. We offer full technical support including material selection, design optimization, and failure analysis.

Get in Touch

Ready to start your project? Contact us today for free technical consultation, samples, or quotes.

86-571-81899556
[email protected]
RM2006, Cross-border E-commerce Park, Xinyuan Road, Li’an, Hangzhou 311300, China
Visit Official Website
China Quality Suppliers fobcompany.info

Notice for Buyers: If you are a buyer, the above information is generated by AI collection and does not constitute any advice. If necessary, please visit the corresponding official website.

For Domain Owners: If you are the domain owner and do not want to be included by fobcompany.info, please contact [email protected] via your corporate email to cancel. We will cancel your inclusion within 3 business days.

如果您是域名所有者 不想被fobcompany.info收录 请用企业邮箱联系[email protected] 取消收录 我们将在3个工作日取消您的收录

Service Request: If you are other domain and want to be included, please contact [email protected]

如果您是其他域名合作 也请联系[email protected]