John crane type SB1 single-cartridge seal. SB1.SB1A cartridge seal

Model: FT SB1
Place of Origin: Zhejiang,China (Mainland)
Standard or Nonstandard: Standard
Style: Mechanical Seal
Material: Metal
Brand Name: FT
Hole: SS304,SS316
Seal face: SIC,CAR.TC
Size: 20mm to 150mm
Rubber: Viton
type: Single, Heavy-duty Cartridge Seal


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Product Description

Payment & Shipping Terms Supply Capacity
Unit Price:450.0 USDProduction Capacity:200 sets per month
Trade Term:FOB,CFR,CIF,DAT,EXWPacking:carton box
Payment Terms:L/C, D/P, T/T, WU, Money GramDelivery Date:25 days
Min. Order:2 Set/Sets
Means of Transport:Ocean, Air

Replace john crane SB1 single cartridge seal

The SB1 cartridge seal fits in various pumps as well as in other processing equipment. The SB1 seal is versatile, and easy to install and maintain.





Type SB1 process pressure: 215 psi(g)/15 bar(g)



Seal faces: SiC/Carbon or SiC/SiC

O-rings: PTFE, EPDM, Viton, FFKM

Metals: AISI 329 and 316 standard, SAF 2507 for sea water applications, titanium, Hastelloy, UHB

Springs: Nimonic steel or Hastelloy, C276

Our SB1 single cartridge seal is excellent replacement of john crane type SB1 seal.

The Safeseal Type SB1 is a single-cartridge seal for use with clean fluids and lubricants. 

It is versatile and easy to install and maintain. Although the design of the seal is simple,

 it contains advanced technical features, such as patented seal face holders and elastic

 mating ring. Seal faces are installed using a patented heat shrink process ensuring 

correct, distortion-free face alignment at all recommended temperatures. The Type SB1 

seal is applicable for a wide range of duties such as water, oil, solvents and pulp. 


The springs are located in the stationary body of the seal, reducing risk of the springs 

becoming clogged.PTFE slot rings replace the traditional O-rings in places where they are 

exposed to the product, preventing sticking.Protected faces, the seal face carriers are 

driven by machined fits, preventing metal stress from distorting the face.

John Crane's Safeseal Type SB1, patented with safematic technology, is a single heavy-duty cartridge seal used in combination with clean fluids and lubricants. The seal's design is just simple, it has advanced technical features such seal face holders and elastic mating ring. For this specific version, the SB1 seal covers a broad range of liquids such as water, oil, solvents and pulp.

The safeseals comes with different versions for specific services such as the Type SB1 which measures in metric units (DIN), another is Type SB1A which measures for imperial units (ANSI), next is Type SB1B for imperial units for big box bore pumps and lastly Type SB1S for imperial or metric units.

Category: Cartridge Mechanical Seals