Features and Benefits
- Clean design with springs outside the process fluid prevents clogging and hang-up for applications with up to 20% solids.
- Dual pressurized arrangement enables zero process emissions to optimally protect the environment and help facilities achieve decarbonization goals.
- Thick cross-section seal faces are double-balanced for high barrier pressure operation and upset pressure reversals, ensuring seal faces always remain closed.
- Outer seal options are available to provide the right level of performance capability and economy; all options maintain API 682 compliance and the correct level of barrier fluid circulation.
- Engineered to retrofit into existing API 610 pump installations and resolve ongoing contamination challenges or can be specified in new, clean and/or dirty applications.
Specifications
Standard:
- API Standard 682 (4th Edition)
Operating Parameters:
- Process pressure: to 50.3 bar (730 psi)
- Barrier pressure: 1.4 to 15 bar (20 to 220 psi) over process
- Temperature: -40°C to 204°C (-40°F to 400°F)
- Speed: to 5,000 rpm or 23 m/s (75 ft/s)
- Size Range: Shaft size: 19.0 to 127 mm (0.750 to 5.000 in)
Materials of Construction:
- Metal components: 316 stainless steel, Alloy C-276, duplex
- Seal faces: Silicon carbide
- Gaskets: Fluoroelastomer, nitrile, perfluoroelastomer
- Springs: Alloy C-276
Industries
• Biofuels
• Upstream Exploration & Production
• Midstream Transportation
• Downstream Processing
Configurations
- Arrangement 3 pressurized dual wet seal (Common Piping Plans 53A, 53B, 53C, 54)
- Allpac 682/ISC2-XP
- Allpac 682/QB
- Allpac 682/HSH
