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Replace John Crane Type 1
Replace John Crane Type 1
Specifications
Brand Name :
JG
Model Number :
T-100
Certification :
FDA certificate
Place of Origin :
Zhejiang, China
MOQ :
1pcs
Price :
USD
Payment Terms :
T/T,Western Union,MoneyGram
Supply Ability :
1000PCS
Delivery Time :
3~10DAYS
Packaging Details :
white box
Product name :
Replace John Crane Type 1
Size :
18~100mm
Materials parts :
SS304 SS316 titan hast C 904L
Pressure :
up to 0.5Mpa
Temperature :
-10°C to +120°C
Speeds :
10m/s
Description
Replace John Crane Type 1
Product Overview

The John Crane Type 1 has long been the industry benchmark for non-pusher, elastomeric bellows seals in pumping systems worldwide. Our equivalent series is engineered to be 100% dimensionally interchangeable with the original, offering a robust alternative that reduces MRO costs without compromising on performance.

Designed for the most demanding environments, this seal excels in centrifugal pumps, rotary pumps, mixers, and agitators. By leveraging advanced material science and precision manufacturing, we provide a sealing solution that ensures maximum uptime and adheres to the highest ISO 3069 and ANSI standards.

Technical Specifications
Parameter Range / Specification Notes
Shaft Diameter 0.375" to 4.000" (9.5mm - 100mm) Imperial & Metric sizes available
Max Pressure ≤ 20 bar (290 psi) Dependent on shaft speed and media
Temperature -40°C to +205°C Based on elastomer selection (Viton/EPDM)
Max Velocity ≤ 13 m/s (2500 fpm) Linear face speed limit
Rotary Face Carbon / SiC / TC Resin-impregnated or Metal-grade
Stationary Seat Ceramic / SiC / TC Available in various seat types
Spring & Hardware SS304 / SS316 High corrosion resistance
Key Features & Technical Advantages
  • Self-Aligning Capability: The flexible rubber bellows automatically compensates for abnormal shaft end-play, run-out, and primary ring wear, ensuring consistent face contact.
  • Non-Clogging Single Spring: Unlike multi-spring designs, the heavy-duty single coil spring resists clogging in viscous or particle-laden fluids, maintaining seal integrity in "dirty" services.
  • Seamless Interchangeability: Fully compatible with the L3 operating length of John Crane Type 1, as well as Flowserve Pac-Seal 51, AESSEAL B01, and Vulcan Type 10.
  • Torque-Free Bellows: The drive is transmitted through the mechanical drive notches rather than the bellows, preventing over-stressing of the elastomer and extending its service life.
  • Application Versatility: Capable of handling a wide array of fluids, from potable water and lubrication oils to mild chemical slurries, depending on the elastomer configuration.
Performance Advantages
  • Spring unit averted from the product so no sticking and clogging of the springs
  • Safe operation (no fractures) because of seal face locking by square pin
  • Suitable for pressure reversals
  • Operation in vacuum without additional seat locking possible
  • No damage of the shaft by a dynamically loaded O-Ring
  • Small installation sizes
  • Best suitable for conversions, no adaptations of the pump
  • Insensitive to solid containing and abrasive media
  • Advantages of a balanced seal even with plain shafts
  • Insensitive to shaft movements because of the stationary design
Frequently Asked Questions
Is this seal a direct "drop-in" replacement for the John Crane Type 1?
Yes. Our seals are manufactured to the same dimensional standards (shaft size, outer diameter, and operating height), allowing for immediate installation without equipment modification.
Which face material is best for abrasive media?
For fluids containing grit or crystals, we recommend a Silicon Carbide (SiC) vs. Silicon Carbide face combination. SiC offers superior hardness and thermal conductivity compared to standard ceramic or carbon.
Why choose an equivalent seal over the OEM?
Our equivalent seals offer supply chain agility -- significantly shorter lead times and more competitive pricing -- while meeting or exceeding OEM performance specifications through rigorous pressure testing.
How do I identify the correct Stationary Seat for my pump?
The Type 1 typically uses an O-ring mount (Type 1 Seat) or a Cup-mount (Type 31 Seat). Please verify the bore depth of your seal chamber or provide a part number for our engineers to cross-reference.
Application Areas
  • Water and waste water technology
  • Chemical industry
  • Refining technology
  • Dirty, abrasive and solid containing media
  • Fugitive hydrocarbons (no API seal!)
  • Sticky and stringy media
  • Chemical standard pumps
  • Sewage pumps
Shipping & Payment Terms

Port of Loading: Shanghai

Shipping Method: DHL, UPS, FEDEX, TNT, etc

Payment Terms: T/T, Western Union, Money Gram

Our Services
  • OEM/ODM orders are available for our factory
  • Accept customized mechanical seals according to your drawing or requirements
  • Small quantity is accepted
  • Provides excellent quality with competitive price
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Replace John Crane Type 1

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Product Detail
Brand Name :
JG
Model Number :
T-100
Certification :
FDA certificate
Place of Origin :
Zhejiang, China
MOQ :
1pcs
Price :
USD
Contact Supplier
Replace John Crane Type 1

Jiaxing Burgmann Mechanical Seal Co., Ltd. Jiashan King Kong Branch

Verified Supplier
8 Years
zhejiang, jiaxing
Since 1992
Business Type :
Manufacturer, Exporter, Trading Company, Seller
Main Products :
Industrial Mechanical Seals, Metal Bellows Seal, Cartridge Mechanical Seal
Total Annual :
10milion-15milion
Employee Number :
80~100
Certification Level :
Verified Supplier
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