• Plastic-Compatible Drive: The seal drive mechanism is designed to fit the plastic impellers of popular pool pumps (Hayward, Pentair, etc.) without cracking them.
• Thermal Shock Resistance: Ceramic faces are engineered to withstand the rapid cooling of cold pool water hitting a hot seal.
Key Features
• Pool & Spa Standard: Designed specifically for the high-chlorine, intermittent duty environment of swimming pool and spa pumps.
• Dry Run Tolerance: Features specialized materials capable of surviving short periods of dry running, common when pool pumps lose prime.
• Chemical Resistance: EPDM elastomer bellows provide superior resistance to chlorine, ozone, and pool acids.
Technical Specs | Materials | ||
Mediums | Water, oil and weakly-corrosive mediums | Stationary Ring | Ceramic/Sic/TC |
Pressure | ≤ 1.0MPa | Rotary Ring | Carbon/Sic/TC |
Temperature | -20°C to 120°C | Secondary Seal | NBR/EPDM/Viton |
Speed | ≤ 15 m/s | Spring and Metal Part | Stainless Steel |


Product Specifications
| Metric Shaft Size D1 | Size Code | D3 | D7 | L1 | L4 |
| 12 | 0120 | 21.70 | 23.00 | 24.10 | 8.60 |
| 14 | 0140 | 24.50 | 25.00 | 26.60 | 8.60 |
| 16 | 0160 | 26.65 | 27.00 | 26.60 | 8.60 |
| 18 | 0180 | 30.35 | 33.00 | 27.70 | 10.00 |
| 20 | 0200 | 33.40 | 35.00 | 27.70 | 10.00 |
| 22 | 0220 | 33.55 | 37.00 | 27.70 | 10.00 |
| 24 | 0240 | 38.30 | 39.00 | 30.20 | 10.00 |
| 25 | 0250 | 39.30 | 40.00 | 30.20 | 10.00 |
| 28 | 0280 | 42.20 | 43.00 | 32.70 | 10.00 |
| 30 | 0300 | 43.95 | 45.00 | 32.70 | 10.00 |
| 32 | 0320 | 45.75 | 48.00 | 32.70 | 10.00 |
| 33 | 0330 | 45.85 | 48.00 | 32.70 | 10.00 |
| 35 | 0350 | 19.10 | 50.00 | 32.70 | 10.00 |
| 38 | 0380 | 52.60 | 56.00 | 34.20 | 11.00 |
| 40 | 0400 | 55.70 | 58.00 | 34.20 | 11.00 |
| 43 | 0430 | 58.80 | 61.00 | 34.20 | 11.00 |
| 45 | 0450 | 61.00 | 63.00 | 34.20 | 11.00 |
| 48 | 0480 | 64.20 | 66.00 | 34.20 | 11.00 |
| 50 | 0500 | 66.60 | 70.00 | 34.70 | 13.00 |
| 55 | 0550 | 71.65 | 75.00 | 34.70 | 13.00 |
| 58 | 0580 | 78.40 | 78.00 | 39.70 | 13.00 |
| 60 | 0600 | 78.40 | 80.00 | 39.70 | 13.00 |
| 63 | 0630 | 81.50 | 83.00 | 39.70 | 13.00 |
| 65 | 0650 | 84.30 | 85.00 | 39.70 | 13.00 |
| 68 | 0680 | 89.65 | 90.00 | 37.40 | 15.30 |
| 70 | 0700 | 89.65 | 92.00 | 44.90 | 15.30 |
| 75 | 0750 | 96.80 | 97.00 | 44.90 | 15.30 |
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
Commercial Pool: A hotel pool pump failed weekly due to dry running during backwash cycles. We installed this Dry-Tolerant Pool Seal. Its robust design survived the dry starts, extending service life to over a year.
Testimonials
The only aftermarket seal that lasts in our salt-water pools. Fits perfectly in Pentair pumps.
—Pool Service Technician, Florida
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Does this fit Hayward pumps?
A: Yes, we have specific models (e.g., PS-200, PS-201 equivalent) that are direct replacements for Hayward, Pentair, and Jacuzzi pumps.

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