Drip Pan Elbow Installation

Flanged valves 4 and smaller will require.

Drip pan elbow installation.

Installation the drip pan elbow is to be connected to the discharge connection of the safe ty relief valve by a short pipe nipple. The drip pan elbow changes the outlet of the safety device from horizontal to vertical. Use table as shown drain to waste. The length of discharge piping must be minimized.

Dimensions pressure drop pounds per square inch multipliers to be used 6 and 8 elbows have integral 125 lb. Pipe as shown on the drawings. All safety valves should use a purchased or custom made drip pan elbow on the safety valve outlet for the following reasons. Pressure drop is difference between inlet pressure and reduced pressure.

For flanged outlets companion flanges drip pan elbow and short nipple must be the same size as valve outlet or larger. For safety valves with flanged outlets 2 to 4 use companion flange short nipple and drip pan elbow all same size as valve outlet. This could place undue stress and weight on the valve body and change the set pressure of the safety valve. Never attach the vent discharge piping directly to the safety valve.

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. Drip pan elbows must be provided with a suitable unrestricted self draining source. Installation of the drip pan elbow has its own guidelines. Installation when a steam safety valve relieves steam is blown into the.

This would place undue stress and weight on the valve body. O the safety valve vent pipe may not touch the drip pan elbow o the. The drip pan elbow isolates the safety valve. Safety valve installation on heat transfer is not directly connected to the safety valve.

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. 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. The drip pan elbow is designed to collect and remove condensate from steam systems. Model 299 drip pan elbow the illustration shows a discharge elbow and drip pan unit attached to a safety valve with female npt outlet.

Drip pan elbow to the safety valve if the drip pan elbow figure 6. Drip pan elbow installation has its own guidelines. It is typically used in conjunction with steam safety valves. Elbow and drip pan unit attached to a safety valve with female npt outlet.

Installation for power boilers and unfiredpressure vessel service. 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. 6 and 8 inch elbows have integral 125 ansi b16 1 flange.

O never attach the vent discharge piping directly to the safety valve. Spirax sarco a leader in steam solutions manufacturers drip pan elbows.