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Help CenterHeat Resistant Stainless Steel 304 Coupling Diaphragm Disc For Pump Equipment
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Welcome to Hebei Speed Torque Transmission Technology Co., Ltd. As a professional manufacturer since 2017, we specialize in producing high-quality transmission components. Our Heat Resistant Stainless Steel 304 Coupling Diaphragm Disc is designed for demanding pump equipment applications, offering exceptional durability and reliability. This disc is built to withstand harsh operating conditions, ensuring long service life and minimal maintenance costs for your machinery.
Our diaphragm disc is crafted from premium grade 304 stainless steel, known for its excellent corrosion resistance and heat tolerance. Whether you are in water treatment, chemical processing, or power generation, this component delivers consistent performance under extreme temperatures and pressures. We invite you to explore the technical advantages that set our product apart in the global market.
Key Product Features & Technical Specifications
- Material Excellence: Made from Stainless Steel 304 (SUS304) with a nominal composition of 18% chromium and 8% nickel, providing superior oxidation resistance up to 870°C in continuous service.
- Heat Resistant Design: Engineered to retain mechanical strength and dimensional stability under high thermal stress, ideal for pumps handling hot fluids or steam.
- Precision Machining: CNC-turned and laser-cut for tight tolerances (within ±0.05mm), ensuring balanced rotation and reduced vibration in pump systems.
- Excellent Fatigue Life: The diaphragm disc's flexible structure absorbs misalignment and axial movement, extending the lifespan of both coupling and pump equipment.
- Corrosion & Rust Resistance: 304 stainless steel provides robust protection against chemical agents, humidity, and acidic environments, reducing replacement frequency.
- Customizable Dimensions: We offer tailor-made sizes to fit various pump shaft diameters and coupling types — just provide your specifications.
- Easy Installation: Pre-drilled holes and standard bolt patterns simplify mounting, saving time during assembly and maintenance.
| Parameter | Specification |
|---|---|
| Material Grade | Stainless Steel 304 (1.4301) |
| Operating Temperature Range | -20°C to +300°C (continuous); up to 500°C intermittent |
| Tensile Strength (Min) | 515 MPa |
| Yield Strength (Min) | 205 MPa |
| Elongation (Min) | 40% |
| Hardness (HRB) | ≤92 |
| Surface Roughness | Ra ≤ 0.8 μm (optional finer) |
| Standard Sizes (Outer Diameter) | 50mm – 400mm (customizable) |
| Thickness Options | 0.8mm, 1.0mm, 1.2mm, 1.5mm (or as required) |
| Bolt Hole Pattern | 4, 6, 8 holes (standard / custom) |
Benefits for Your Pump System
- Reduced Downtime: Superior heat and corrosion resistance mean fewer breakdowns and longer intervals between replacements.
- Energy Efficiency: The flexible disc minimizes energy loss from misalignment, keeping pump efficiency high.
- Cost-Effective: Our competitive pricing combined with robust performance lowers total cost of ownership.
- Compatibility: Works with various coupling types (e.g., diaphragm couplings, disc couplings) and pump brands.
- Global Standards: Produced under ISO9001 quality management systems ensuring consistent output.
Trusted Partner for Global Clients
Hebei Speed Torque Transmission Technology Co., Ltd. operates a factory spanning 3,000–5,000 square meters with a dedicated team of 101–200 employees. Since 2017, we have achieved annual export values between US$5 Million and US$10 Million, delivering to markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, East Asia, Western Europe, Central America, Northern Europe, Southern Europe, South Asia, and the domestic market. Our products are shipped from major Chinese ports: Shanghai, Tianjin, and Qingdao.
We understand the critical role that a reliable diaphragm disc plays in pump performance. That's why every disc undergoes rigorous quality checks, from raw material inspection to final dimensional verification. Our ISO9001 certification underscores our commitment to excellence. Choose our Heat Resistant Stainless Steel 304 Coupling Diaphragm Disc — a product engineered to exceed your expectations and backed by a company with proven global reach.
Ready to upgrade your pump equipment? Contact us today for a quote or custom specification. We provide sample testing and fast lead times to support your projects.
Frequently Asked Questions (FAQ)
-
Q: What is the maximum temperature this diaphragm disc can withstand?
A: The disc is rated for continuous operation up to 300°C and can handle intermittent peaks up to 500°C. However, actual limits may vary based on installation and surrounding environment. We recommend consulting our technical team for your specific thermal profile. -
Q: Is this disc compatible with all types of pumps?
A: It is designed for pump equipment that uses diaphragm couplings. Common applications include centrifugal pumps, vacuum pumps, and compressor drives. If you are unsure, please provide your pump model and coupling details for verification. -
Q: Do you offer custom thickness or outer diameter options?
A: Yes, we provide extensive customization. You can specify thickness from 0.6mm to 3.0mm, outer diameter up to 600mm, and any bolt hole configuration. There is no minimum order quantity for custom sizes. -
Q: How long is the delivery lead time?
A: Standard sizes ship within 7–15 working days after order confirmation. Custom orders typically require 15–25 working days, subject to complexity. Expedited shipping is available upon request. -
Q: Can I get a sample before bulk purchase?
A: Absolutely. We offer sample orders for evaluation. Sample cost and shipping charges are applicable, but we will refund the sample fee on bulk orders exceeding a certain quantity. Contact our sales team for details. -
Q: What packaging do you use for export?
A: Each disc is individually wrapped in anti-rust paper and packed with foam padding in strong export cartons or wooden crates, depending on quantity and size. Packaging ensures safe transit to any global destination. -
Q: Is this product RoHS or REACH compliant?
A: While we do not hold formal RoHS/REACH certificates in our standard product line, our 304 stainless steel material inherently meets the requirements for heavy metal restrictions. Specific compliance documents can be provided upon request if needed for your region. -
Q: What is the warranty period?
A: We provide a 12-month warranty from the date of shipment against manufacturing defects. This covers material and workmanship issues under normal operating conditions. Our after-sales team is ready to assist with any concerns.
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