• Unitized Assembly: The spring, bellow, and drive ring are a single unit, making it impossible to lose parts during field repair.
• Soft Face: The carbon face conforms quickly to the mating seat, ensuring a tight seal almost immediately after installation without a long break-in period.
Key Features
• Compact Roten Style: A small, single-spring elastomer bellow seal designed to fit the compact housing of Tullu and similar domestic water pumps.
• Self-Priming Friendly: Carbon faces tolerate the brief dry periods that occur when self-priming pumps are evacuating air.
• Economic Reliability: Provides a reliable, leak-free seal for high-volume, cost-sensitive domestic pump applications.
Product Specifications
Graphite chemical property | ||||||||
Category | Model | Density (g/cm) | Fractural Strength (MPa) | Compressive Strength (MPa) | Shaw Hardness (HS) | Porosit y(%) | Temperature (℃) | |
Carbon-graphite | Impregnated Epoxy Resin (H) | M106H | 1.75 | 65 | 200 | 85 | <1 | 250 |
M120H | 1.7 | 60 | 180 | 80 | <1 | 250 | ||
Impregnated Furan Resin (K) | M106K | 1.75 | 67 | 200 | 90 | <1 | 250 | |
M120K | 1.7 | 62 | 180 | 85 | <1 | 250 | ||
Impregnated Phenol Aldehyde Resin (F) | M106F | 1.75 | 60 | 200 | 85 | <1 | 250 | |
M120F | 1.7 | 55 | 180 | 80 | <1 | 250 | ||
Antimony Carbon (D) | M106D | 2.3 | 65 | 220 | 90 | <1.5 | 400 | |
M120D | 2.3 | 60 | 220 | 90 | <1.5 | 400 | ||
M254D | 2.3 | 55 | 210 | 65 | <1.5 | 450 | ||
Operating Limits | Units | M106D |
Imperegnated material | Slibium-allay | |
Shaw Hardness | HS | ≥90 |
Indicated Parosity | % | ≤2.0 |
Volume Density | g/m³ | ≥2.20 |
Compressive Strength | Mpa | ≥240 |
Flexural Strength | Mpa | ≥70 |
Coefficient Of Heat Expansion | 10-6·1/℃ | 7.2 |
Using Temperature | ℃ | ≤400 |
Workshop
This workshop is equipped with professional processing equipment and integrated with standardized material warehousing management, enabling a one-stop production process from precision machining to finished product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.
Product Research, Development and Testing
Our Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All seals undergo rigorous trials, including thermal cycling and pressure tests, to ensure durability, minimal leakage, and long service life in demanding industrial environments.
Industry Solutions
Case Study
Residential Water Supply: A distributor of domestic booster pumps needed a reliable seal replacement. We supplied this Roten-style Carbon seal. Its tolerance for start/stop cycles and minor dry running reduced their warranty claims by 50%.
Testimonials
Fits perfectly in the Tullu Top pump. The carbon face doesn't crack like the cheap ceramic ones we used to buy.
—Pump Repair Shop, India
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Is this a Type 2 or Type 5?
A: For Tullu pumps, it is typically a variant of the Roten Type 2 or Type 5. We have the specific mold dimensions to fit the Tullu seal cavity exactly, ensuring the correct working length.
Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.
E-mail: gechacha@aliyun.com
Mobile: +86-18758835650
WhatsApp: +86-18758835650
Add: No8-2, Jinsha road Yuelin Street, Fenghua District, Ningbo, Zhejiang
