Drip Pan Elbow Sizing

Do not plug the drip pan elbow.

Drip pan elbow sizing.

Installation the drip pan elbow is to be connected to the discharge connection of the safe ty relief valve by a short pipe nipple. 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. For flanged outlets companion flanges drip pan elbow and short nipple must be the same size as valve outlet or larger. 6 and 8 inch elbows have integral 125 ansi b16 1 flange.

The discharge vent piping should be supported independently from the safety valve drip pan elbow assembly to prevent undue stresses on the safety valve. 6 and 8 elbows have integral 125 lb. 6 and 8 elbows have integral 125 ansi b16 1 flange. The drains on the drip pan elbows are designed to collect any condensed liquid and rain and allow flow safely away from the safety valve.

Important length of discharge piping must be kept to a minimum. 6 and 8 elbows have integral 125 ansi b16 1 flange. O never attach the vent discharge piping directly to the safety valve. It shall have a pan to collect condensate in the steam riser pipe and a drain to pipe away the condensate.

This would place undue stress and weight on the valve body. Touch the drip pan elbow. Discharge elbow and drip pan unit attached to a safety valve with female npt outlet. Drip pan elbow shall be made of cast iron and conform to the power piping code.

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 of the drip pan elbow has its own guidelines. Flanged valves 4 and smaller will require. 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.

Use table as shown drain to waste 11 2 min make short as possible drain waste nom pipe size f nom pipe size a pipe size riser supported overhead g e d c b 60 60 40 60 40 40 30. A drip pan elbow is a specialty elbow fitting configured with a pan at the top that is used to collect and remove condensate in 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. For use with safety relief valves the drip pan elbow provides a self draining outlet to assure unrestricted discharge and keeps the safety valve from filling with water.

Important length of discharge piping must be kept to a minimum. Drip pan elbows must be provided with a suitable unrestricted self draining source. The drip pan elbow changes the outlet of the safety device from horizontal to vertical. The length of discharge piping must be minimized.

Pipe as shown on the drawings. For safety valves with flanged outlets 2 to 4 use companion flange short nipple and drip pan elbow all same size as valve outlet.