John Crane SB2A Dual-Cartridge Mechanical Seal with Double-Balanced Design for 350°F/180°C and SiC/Carbon Seal Faces
Basic Properties
Place of Origin:
CHINA
Brand Name:
BESTSEAL
Certification:
ISO9001
Model Number:
SB2A-2.500-QTMG-303859
Trading Properties
Minimum Order Quantity:
1pc
Payment Terms:
T/T,Western Union,D/P,D/A,L/C
Supply Ability:
1000000/Month
Product Summary
John Crane Safematic SB2A-2.500-QTMG-303859 Mechanical Seal for ANSI Pumps Type SB2A O-Ring Pusher Seals Heavy-duty Dual-cartridge Seals The Safeseal Type SB2A is a dual-cartridge seal. Its double-balanced design ensures the reliability and longevity of the seal in the most demanding conditions. The ...
Product Details
Highlight:
Double-Balanced Design Mechanical Seal
,350°F/180°C Temperature Limits Dual-Cartridge Seal
,SiC/Carbon Seal Faces SB2A Seal
Temperature Limits:
350°F/180°C
Pressure Limits:
Process Pressure: 290 Psi(g)/20 Bar(g), Barrier Fluid: 215 Psi(g)/15 Bar(g)
Speed Limits:
65fps/20m/s
Seal Faces:
SiC/Carbon Or SiC/SiC
O-Rings:
EPDM
Gasket:
PTFE
Metals:
AISI 329 And 316 Standard, Titanium
Springs:
Nimonic Steel
Product Description
John Crane Safematic SB2A-2.500-QTMG-303859 Mechanical Seal for ANSI Pumps
Type SB2A O-Ring Pusher Seals
Heavy-duty Dual-cartridge Seals
The Safeseal Type SB2A is a dual-cartridge seal. Its double-balanced design ensures the reliability and longevity of the seal in the most demanding conditions. The Type SB2A seal is ideal for use with environmentally hazardous and abrasive fluids, most often used in pumps in pulp mills, minerals processing and other slurry duties up to 40% solids by weight and a solids hardness of 8 Mohs. The Type SB2A seal is widely used with other process equipment including agitators.
Several variants of the design available for different services:
- Type SB2A — designed for ANSI standard dimensions
Features
- Seal faces are installed using a patented heat shrink process ensuring correct, distortion-free face alignment at all recommended temperatures.
- The springs are located in the stationary body of the seal in the seal water (barrier fluid). The seal water washes the springs, preventing process chemical corrosion and reduces the risk of the springs becoming clogged. Shaft misalignment does not vibrate or wear out the O-rings.
- 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.
- Patented double-balanced design allows the use of both pressurized and unpressurized seal water (barrier/buffer fluid) and prevents face overload.
- SB2 series seals will accept ± 0.080"/± 2.0mm axial movement (shaft end play) during normal operation due to their piston design. Impeller adjustments do not affect face stress or spring strength.
BESTSEAL — Your Reliable Partner for Mechanical Seals
| BESTSEAL Advantage: | |
| 15 years | Focused in mechanical seal manufacturing |
| 3 hours | Quotation response only takes 3 hours |
| 1 day | Provide production assembly drawings |
| 1 piece | MOQ, One piece can also be produced |
| 15-20 working days | The production cycle only takes 15-20 working days |
| real-time | Real time synchronization of production progress |
- BESTSEAL Cartridge Mechanical Seals
- Your Fast-Track Alternative to John Crane Type SB2A
- Custom Cartridge Mechanical Seals — From Drawing to Delivery in 15–20 Working Days
Mr. Leo
Sales Manager
- Email: info@beseals.com
- Tel: +86 13067871876
- WhatsApp: 8613067871876
-
WeChat:
beseals
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