Cylinder manifolds
Cylinders
- The most common cylinder sizes are 100 and 150 pounds; other sizes are available.
- Cylinders should be fitted with a 240 valve and a short bent dip tube positioned so the bend is opposite the valve opening.
- For Vapor Withdrawal: The cylinder must be positioned vertically or on its side with the valve opening face down.
- For Liquid Withdrawal: The cylinder must be positioned on its side with the valve opening face up.
- All ammonia cylinders must be authorized for ammonia use by the Department Of Transportation (DOT).
- Cylinders must be fastened to a support or nestled closely together to prevent them from falling over and becoming hydrostatically charged.
- Special care must be taken not to overfill cylinders because they are not equipped with a safety relief valve.
Cylinder Manifold for Ammonia
Cylinder Manifolds
- Allow one - 150 pound cylinder for every 25 SCFH of Ammonia Gas required.
Cylinder manifolds can be manufactured in the following styles:
- Single Cylinder Manifold
- Single Cylinder Manifold with 1 Standby
- Two Cylinder Manifold
- Two Cylinder Manifold with 1 Standby
- Three Cylinder Manifold
- Three Cylinder Manifold with 1 Standby
- Four Cylinder Manifold
- Four Cylinder Manifold with 2 Standbys
All manifolds should consist of the following equipment:
- DOT rated cylinders for ammonia use
- Ammonia flexible hose
- Schedule 80 black iron pipe
- Ammonia rated safety relief valves
- Forged steel unions
- Flow controls
- A vent line leading to atmosphere
- Steel ammonia service valves
- Connector-Yoke type cylinder valves
- Forged steel fittings
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