Drip Pan Elbow Installation

O never attach the vent discharge piping directly to the safety valve.

Drip pan elbow installation.

The drip pan elbow changes the outlet of the safety device from horizontal to vertical. Installation of the drip pan elbow has its own guidelines. Spirax sarco a leader in steam solutions manufacturers drip pan elbows. O the safety valve vent pipe may not touch the drip pan elbow o the.

Installation for power boilers and unfiredpressure vessel service. The drip pan elbow isolates the safety valve. Pipe as shown on the drawings. Installation the drip pan elbow is to be connected to the discharge connection of the safe ty relief valve by a short pipe nipple.

Dimensions pressure drop pounds per square inch multipliers to be used 6 and 8 elbows have integral 125 lb. Drip pan elbow installation has its own guidelines. Use table as shown drain to waste. 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.

All safety valves should use a purchased or custom made drip pan elbow on the safety valve outlet for the following reasons. For flanged outlets companion flanges drip pan elbow and short nipple must be the same size as valve outlet or larger. This could place undue stress and weight on the valve body and change the set pressure of the safety valve. Safety valve installation on heat transfer is not directly connected to the safety valve.

6 and 8 inch elbows have integral 125 ansi b16 1 flange. Flanged valves 4 and smaller will require. Pressure drop is difference between inlet pressure and reduced pressure. Installation when a steam safety valve relieves steam is blown into the.

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. Cast iron drip pan elbows for steam service. Never attach the vent discharge piping directly to the safety valve. 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.

The drip pan elbow changes the outlet of the safety device from horizontal to vertical. Important length of discharge piping must be kept to a minimum. Elbow and drip pan unit attached to a safety valve with female npt outlet. Drip pan elbows can improve the performance and extend the life of the safety valve by alleviating axial loads on the valve which could impair its operation and shut off drip pan elbow installation guidelines.

6 and 8 elbows have integral 125 ansi b16 1 flange. The drip pan elbow is designed to collect and remove condensate from steam systems. Drip pan elbows must be provided with a suitable unrestricted self draining source. This would place undue stress and weight on the valve body.

Drip pan elbow to the safety valve if the drip pan elbow figure 6. It is typically used in conjunction with steam safety valves.