Professional O-Ring and Oil Seal Manufacturer, Sealing Solution Supplier Since 2008.
HSPMR Series Mechanical Seals
Features and Specifications of Multi - Spring Mechanical Seals
Forever Seals' HSPMR series mechanical seals stand out as high-performance multi-spring solutions tailored for industrial sealing needs. Meticulously engineered to comply with rigorous standards including GB6556, ISO3069, and DIN24960, they offer exceptional versatility—seamlessly adapting to single-end or double-end, cartridge or non-cartridge, as well as balanced or unbalanced configurations.
Boasting a pressure range of up to 7.5 MPa, a maximum speed of ≤25 m/s, and a wide temperature tolerance from -40℃ to 220℃, these seals deliver stable performance across most media types, making them ideal for critical sectors like chemical processing, oil refining, and petrochemical operations. Additionally, their interchangeability with common specifications such as C8 and M7N simplifies maintenance and replacement, ensuring long-term reliable sealing while reducing operational downtime.
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1. Product Advantages
The HSPMR series mechanical seals from Forever Seals are designed to deliver exceptional performance and reliability, with key advantages including:
Superior Versatility: Complies with international standards (GB6556, ISO3069, DIN24960) and supports multiple configurations—single/double-end, cartridge/non-cartridge, and balanced/unbalanced—adapting to diverse industrial equipment needs.
Wide Operating Range: Withstands pressures up to 7.5 MPa, speeds up to 25 m/s, and temperatures from -40℃ to 220℃, ensuring stable sealing for most media (e.g., oils, chemicals, solvents).
Long-Lasting Durability: Adopts high-wear-resistant materials (e.g., silicon carbide, carbon graphite) for the sealing face, reducing friction and extending service life by 30% compared to standard seals.
Easy Maintenance: Interchangeable with common models like C8 and M7N, simplifying replacement and minimizing equipment downtime.
2. Working Principle
Mechanical seals rely on the tight contact between two stationary and rotating sealing faces to prevent fluid leakage. For the HSPMR series:
The multi-spring design provides uniform axial force, ensuring consistent pressure between the rotating (connected to the pump shaft) and stationary (fixed to the pump housing) faces.
A secondary O-ring or gasket seals the gap between the stationary face and housing, while a dynamic seal (e.g., bellows) accommodates minor shaft misalignment or vibration.
This structure eliminates excessive leakage, maintains system pressure, and protects equipment from corrosion or contamination by the sealed media.
3. Product Details
Sealing Face Materials: Optional combinations (silicon carbide/silicon carbide, carbon graphite/silicon carbide) to match different media properties (abrasive, corrosive, or high-temperature).
Spring Configuration: Stainless steel multi-springs with anti-rust coating, ensuring uniform force distribution and resistance to harsh environments.
Shaft Compatibility: Suitable for shaft diameters ranging from 15mm to 120mm, with custom options available for non-standard shafts.
Installation Design: Cartridge models feature pre-assembled components, reducing on-site installation errors and saving time; non-cartridge models offer flexibility for retrofitting older equipment.
4. Application Range
The HSPMR series is widely used in industries requiring reliable fluid sealing, including:
Chemical & Petrochemical: Sealing for pumps, mixers, and reactors handling acids, alkalis, and petroleum products.
Oil & Gas: Applications in crude oil transfer pumps and natural gas compressors.
Power Generation: Sealing for boiler feedwater pumps and cooling water systems.
Pharmaceutical & Food: Sanitary-grade options (with FDA-approved materials) for sealing liquid ingredients or solvents.
Water Treatment: Pumps and filters for wastewater treatment or clean water circulation.
5. FAQ (Frequently Asked Questions)
Q1: Can the HSPMR series be used for food-grade applications?
A: Yes. Forever Seals offers food-grade HSPMR models with FDA-certified sealing materials (e.g., PTFE gaskets) to meet hygiene standards for food and pharmaceutical industries.
Q2: How often should the HSPMR seal be replaced?
A: Under normal operating conditions (proper alignment, clean media), the service life is 12–24 months. Frequent leakage or increased noise indicates the need for replacement.
Q3: Is technical support available for installation?
A: Absolutely. Forever Seals provides a detailed installation manual, video tutorials, and 24/7 technical support via email or phone to assist with setup and troubleshooting.
Q4: Can the seal be customized for high-pressure (over 7.5 MPa) applications?
A: Yes. Our engineering team can modify the HSPMR design (e.g., reinforced sealing faces, high-strength springs) to handle pressures up to 15 MPa for specific industrial needs.
6. Company Selling Points (Forever Seals)
15+ Years of Expertise: A leading manufacturer of mechanical seals with decades of experience in R&D and industrial applications, ensuring product quality and technical maturity.
Global Certification: All products (including the HSPMR series) pass ISO9001 quality management system certification and meet regional standards (e.g., CE for Europe, FDA for North America).
Customization Capabilities: Offers tailor-made solutions based on customer-specific parameters (media type, pressure, temperature) to solve unique sealing challenges.
Reliable After-Sales Service: Provides a 12-month warranty for the HSPMR series, along with fast spare parts delivery and on-site maintenance support in major industrial regions.
Sustainable Focus: Uses eco-friendly materials and energy-efficient production processes to reduce environmental impact, aligning with global sustainability goals.
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