Features mechanical seal type 2874
- California Residents: PROPOSITION 65 WARNING
- ID to OD pumping spiral groove arrangement places process fluid at the OD of the inboard seal.
- Eliminates low flow regions in close proximity to inboard seal
- Reduces dewatering and hang-up
- Rotating mating ring imparts centrifugal flow to fluid in the seal chamber, which keeps fluid moving and helps prevent solids from falling out of solution.
Recommended Applications type 2874
- Process pumps
- Other rotating equipment
About Mechanical seal type 2874
The Type 2874 is an internally pressurized, gas-lubricated, non-contacting dual cartridge seal designed for use in API, ANSI and DIN large-bore seal chambers.
Design Features mechanical seal type 2874
Inside diameter (ID) to outside diameter (OD) pumping spiral groove arrangement places process fluid at the OD of the inboard seal. Eliminates low flow regions in close proximity to inboard seal, reduces dewatering and hang up
• Rotating mating ring imparts centrifugal flow to fluid in the seal chamber of equipment
• 0.0 fugitive emissions
• Reverse pressure capability
• Simplified barrier gas support system
Material mechanical seal type 2874
- Primary Ring: Carbon
- Mating Ring: Tungsten Carbide
- O-rings: Fluoroelastomer
- Spring: Alloy C-276
- Gland Adapter: 316 SS
- Gland Plate: 316 SS
- Cap Screw: 316 SS
- Sleeve: 316 SS
- Mating Ring Adapter: 316 SS
- Snap Ring: 18-8 SS
- Disc: 316 SS
- Spacer Plated: Steel
- Collar: 316 SS
- Set Screw: Hardened Steel
Operating range mechanical seal type 2874
-30°F to 500°F/-34°C to 260°C
Vacuum to 600 psi(g)/(41 bar(g)
Maximum differential pressure (process/inbd) is 150 psi(g)
1450 to 3600 rpm
Consult engineering for low- or high-speed designs.
1.375 to 4.000″
Consult engineering for non-standard sizes.
Product Description type 2874
Non-contacting, internally pressurized outward pumping dual seal cartridge for new and existing pumps
• For Maximum Achievable Control Technology (MACT) and high reliability sealing of volatile or hazardous fluids in chemical, petrochemical and refining processes
• For process fluids that display turbidity or solids in suspension.
• For sealing high purity fluids without potential for product contamination
• For sealing fluids that are sensitive to thermal gain or decay
• For use in API, ANSI and DIN large bore seal chambers