Plan 51 (Quench Pot)

Why do we use it?
- When crystalisation or icing on the atmospheric side of the seal is likely and could cause damage to the seal
- When a Plan 62 quench supply is unavailible or impractical
- Usually only recommended for vertical pumps
Advantages:
Can be used to retard/prevent crystallization or icing on atmospheric side of seal.
General:
Careful selection of auxiliary sealing device required to prevent escape of blanket fluid from reservoir.
NOTE:
May not be possible to achieve a 3-year operating life dependant on type of auxiliary sealing device used.
Seals applicable to this plan
Type 1604
Single Stationary API 682 Metal Bellows Cartridge Seal Type C, Arrangement 1
The Type 1604 high-temperature, high-performance Type C, Arrangement 1, API 682 qualified cartridge seal is designed for high-temperature applications such...
Type 1670
API 682 Category II and Category III, Type B, Arrangement 1 Single Rotating Metal Bellows Cartridge Seal
The Type 1670 is a factory pre-set edge-welded metal bellows API 682 qualified cartridge seal with Alloy C-276 (UNS N10276)...
Type 1648 O-Ring Pusher Seal
API 682-qualified, Single Cartridge, Type "A" O-ring Pusher Seal
The Type 1648 is a high-performance single cartridge pusher seal designed to help prevent emissions leakage in most refinery applications....
Type 5610/5610Q/5610L O-Ring Pusher
Universal Cartridge Seal Family — Single Cartridge O-Ring Seal
The first truly universal cartridge seal, the Type 5610 will change your approach to sealing. Since the 5600 Series components...
Type 5610V/VQ/VP O-Ring Pusher
Universal Cartridge Ear Drive O-Ring Seal Head
The specially engineered, fully interchangeable ear drive O-ring seal head extends the functionality of the 5600 series product line for standard ANSI and large bore…
Type 5610D/5620D O-Ring Pusher
Universal Cartridge Seal Family — Wet/Dry-running Seal
The specially engineered, fully interchangeable wet/dry-running seal head extends the functionality of the 5600 product line for standard ANSI...
Type 5615/5615Q/5615L
Universal Cartridge Seal Family — Single Cartridge Metal Bellows Seal.
The 5600 Series is the first truly universal cartridge seal — and the modular family concept of John Crane's Universal Cartridge will change your approach…