Important length of discharge piping must be kept to a minimum.
Drip pan elbow installation.
O never attach the vent discharge piping directly to the safety valve.
The drip pan elbow changes the outlet of the safety device from horizontal to vertical.
The pan is used to collect condensate in the steam riser and the drain is used to pipe away the condensate to a safe area.
It is typically used in conjunction with steam safety valves.
Dimensions pressure drop pounds per square inch multipliers to be used 6 and 8 elbows have integral 125 lb.
For flanged outlets companion flanges drip pan elbow and short nipple must be the same size as valve outlet or larger.
O the safety valve vent pipe may not touch the drip pan elbow o the.
The drip pan elbow isolates the safety valve.
Drip pan elbows for use with safety relief valves shall be astm a126 cl b cast iron and be of the same size as the valve outlet or larger.
Installation for power boilers and unfiredpressure vessel service.
The drip pan elbow changes the outlet of the safety device from horizontal to vertical.
Installation when a steam safety valve relieves steam is blown into the.
This would place undue stress and weight on the valve body.
This could place undue stress and weight on the valve body and change the set pressure of the safety valve.
Flanged valves 4 and smaller will require.
Drip pan elbows must be provided with a suitable unrestricted self draining source.
6 and 8 elbows have integral 125 ansi b16 1 flange.
Installation of the drip pan elbow has its own guidelines.
Pipe as shown on the drawings.
Drip pan elbow to the safety valve if the drip pan elbow figure 6.
The length of discharge piping must be minimized.
Drip pan elbow installation has its own guidelines.
All safety valves should use a purchased or custom made drip pan elbow on the safety valve outlet for the following reasons.
Spirax sarco a leader in steam solutions manufacturers drip pan elbows.
For safety valves with flanged outlets 2 inch to 4 inch use companion flange short nipple and drip pan elbow all same size as valve outlet.
Use table as shown drain to waste.
Model 299 drip pan elbow the illustration shows a discharge elbow and drip pan unit attached to a safety valve with female npt outlet.
Cast iron drip pan elbows for steam service.
Never attach the vent discharge piping directly to the safety valve.
Elbow and drip pan unit attached to a safety valve with female npt outlet.
6 and 8 inch elbows have integral 125 ansi b16 1 flange.
The drip pan elbow is designed to collect and remove condensate from steam systems.
For safety valves with flanged outlets 2 to 4 use companion flange short nipple and drip pan elbow all same size as valve outlet.
Installation the drip pan elbow is to be connected to the discharge connection of the safe ty relief valve by a short pipe nipple.