Plan 53A (Pressurised Vessel)
Why do we use it?
- When an arrangement 3 plan is required
- When the required barrier fluid is less than 10 bar (145 psi) to avoid gas entrainment
- When a supply of inert gas (N2) is available, above the required barrier pressure
- When the shaft speed is too low for a non-contacting gas seal or the process is incompatible with gas injection
Advantages:
Reservoir size can be optimized dependent on flow rate. Wear particles settle to bottom of reservoir and do not get recirculated.
General:
Heat is dissipated by reservoir cooling coil. Barrier fluid is subject to gas entrainment at pressures/temperatures above 21 bar(g)/300 psi(g) and 120°C/250°F. While API 682 4th edition suggests a limit of 10 bar(g)/150 psi(g) to avoid gas entrainment, properly selected barrier fluids can be used to the limit suggested above.
Seals applicable to this plan
Type 2609HTC/3609HTC Metal Bellows Cartridge Seal
Dependable API 682 Cartridge Seals
The Type 2609HTC and Type 3609HTC are dependable API 682 cartridge seals that utilize two impressive design innovations by...
Type 2609HTL/3609HTL Metal Bellows Seal
Dual Unpressurized and Pressurized Rotating Bellows Cartridge Seals (API 682 Type C, Arrangement 2 and 3)
Type 2609HTL is a dual unpressurized rotating bellows cartridge seal API 682 Type C, Arrangement 2. Type 3609HTL is a...
Type 3604/3604HTC/3604HTCDP
API 682 Type C, Arrangement 3, Stationary Metal Bellows Cartridge Seal
The Type 3604/3604HTC/3604HTCDP is a highly reliable dual face-to-face stationary cartridge seal for high-temperature refinery services that is fully API...
Type 5625P-1
Universal Cartridge Seal Family — API 682 Qualified Dual Cartridge Unpressurized/Pressurized Metal Bellows Seal
High-performance, low-emission, non-pusher seals, the Universal Cartridge 5600-1 Series is a modular cartridge seal family that includes interchangeable metal bellows...
Type 3648
API 682-qualified, Dual Pressurized Cartridge, Type "A" O-ring Pusher Seal
The Type 3648 is a high-performance, low-emission cartridge seal designed for maximum containment of hazardous fluids and light hydrocarbons. Its...
Type 5620/5620P/5620VP O-Ring Pusher Seals
Universal Cartridge Seal Family — Dual Cartridge O-ring Seal
The first truly universal cartridge seal, the Type 5620/5620P/5620VP will change your approach to sealing. Since the 5600 Series components...