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NINGBO MIAOYU MACHINERY TECHNOLOGY CO., LTDNINGBO MIAOYU MACHINERY TECHNOLOGY CO., LTD

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Elastomer Bellow Shaft Seals

John Crane Type 6 Elastomer Bellows Seals Kits

AES B07X Pump Mechanical Seal Replacement Copy
AES B07X Pump Mechanical Seal Replacement Copy
AES B07X Pump Mechanical Seal Replacement Copy
thumb AES B07X Pump Mechanical Seal Replacement Copy
AES B07X Pump Mechanical Seal Replacement Copy
AES B07X Pump Mechanical Seal Replacement Copy

John Crane Type 6 Elastomer Bellows Seals Kits

• Self-Aligning: The flexible elastomer bellow automatically compensates for shaft end-play, run-out, and primary sealing ring wear.

• Non-Clogging: The single coil spring is protected from the fluid, preventing clogging and corrosion.

Model:2
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Key Features

• Direct OEM Replacement: A 100% compatible aftermarket replacement for the classic John Crane Type 6 elastomer bellow seal.

• Unitized Construction: The seal head is a single unitized assembly (bellow, spring, retainer, face), making installation fast and error-free.

• Versatile Application: Widely used in water, oil, and mild chemical pumps across general industry.



Technical Specs

Materials

Mediums

Water, oil and weakly-corrosive mediums

Stationary Ring

Ceramic/Sic/TC

Pressure

≤1.4MPa

Rotary Ring

Carbon/Sic/TC

Temperature

-20℃ to 120℃

Secondary Seal

NBR/EPDM/Viton

Speed

≤15m/s

Spring and Metal Part

Stainless Steel


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CF2-2.jpg



Product Specifications

D1 (inch) Size Code D1 (mm) Size Code D3 D7 L1 L4
0.500 0127 12 0120 30.14 25.40 20.64 7.93
14 0140 33.32 31.75 22.23 10.30
0.625 0158 16 0160 33.32 31.75 22.23 10.30
0.750 0191 18 0180 36.50 34.93 22.23 10.30
20 0200 39.67 38.10 23.80 10.30
0.875 0222 22 0220 39.67 38.10 23.80 10.30
24 0240 45.50 41.28 25.40 11.10
1.000 0254 25 0250 45.50 41.28 25.40 11.10
1.125 0286 28 0280 48.50 44.44 26.97 11.10
30 0300 52.37 47.63 26.97 11.10
1.250 0317 32 0320 52.37 47.63 26.97 11.10
33 0330 56.00 50.80 28.58 11.10
1.375 0349 35 0350 56.00 50.80 28.58 11.10
1.500 0381 38 0380 59.20 53.98 28.58 11.10
1.625 0412 40 0400 67.00 60.33 34.93 12.70
43 0430 69.85 63.50 34.93 12.70
1.750 0444 45 0450 69.85 63.50 34.93 12.70
1.875 0476 48 0480 73.03 66.68 38.10 12.70
2.000 0508 50 0500 76.20 69.85 38.10 12.70
2.125 0539 53 0530 82.55 76.20 42.85 14.28
2.250 0571 55 0550 85.73 79.38 42.85 14.28
2.375 0603 60 0600 88.90 82.55 46.02 14.28
2.500 0635 63 0630 92.08 85.73 46.02 14.28
2.625 0666 65 0650 98.43 85.73 49.20 15.90
2.750 0698 70 0700 101.60 88.90 49.20 15.90
2.875 0730 73 0730 104.78 95.25 52.37 15.90
3.000 0762 75 0750 107.95 98.43 52.37 15.90



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.


Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606



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.


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Industry Solutions

Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606
Metal Bellows Seals for High Temperature Pumps 606




Case Study

Automotive Cooling: Replaced OEM Type 6 seals in an automotive engine test stand cooling circuit. Our kits offered identical performance at 40% of the cost, with immediate availability reducing downtime.

Testimonials

We keep these Type 6 kits on the shelf. They are the universal fix for our older centrifugal pumps.

—Maintenance Supervisor, Manufacturing Plant



FAQs about Metal Bellows Seals for High Temperature Pumps

Q: Is this different from Type 21?

A: Yes. Type 6 is an older design often found in automotive and light-duty pumps. It is generally shorter and has a different drive mechanism than Type 21. Check your dimensions carefully.

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Get Started With Your Next Project.
If you have any questions about our products and services, please feel free to contact us. Our team will get in touch with you within 24 hours!
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    Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.

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    Tell us your sealing requirements (working conditions, media, dimensions, etc.), and our engineers will provide a tailored solution and quote within 24 hours. Your inquiry is 100% confidential.
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