Drip Pan Elbow Installation

The drip pan elbow is designed to collect and remove condensate from steam systems.

Drip pan elbow installation.

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. Elbow and drip pan unit attached to a safety valve with female npt outlet. It is typically used in conjunction with steam safety valves. 6 and 8 elbows have integral 125 ansi b16 1 flange.

Installation of the drip pan elbow has its own guidelines. Spirax sarco a leader in steam solutions manufacturers drip pan elbows. Important length of discharge piping must be kept to a minimum. 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.

The length of discharge piping must be minimized. This could place undue stress and weight on the valve body and change the set pressure of the safety valve. Drip pan elbow to the safety valve if the drip pan elbow figure 6. Safety valve installation on heat transfer is not directly connected to the safety valve.

Cast iron drip pan elbows for steam service. Model 299 drip pan elbow the illustration shows a discharge elbow and drip pan unit attached to a safety valve with female npt outlet. Pressure drop is difference between inlet pressure and reduced pressure. Drip pan elbows must be provided with a suitable unrestricted self draining source.

Never attach the vent discharge piping directly to the safety valve. Dimensions pressure drop pounds per square inch multipliers to be used 6 and 8 elbows have integral 125 lb. For safety valves with flanged outlets 2 to 4 use companion flange short nipple and drip pan elbow all same size as valve outlet. 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.

O the safety valve vent pipe may not touch the drip pan elbow o the. This would place undue stress and weight on the valve body. 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.

The drip pan elbow isolates the safety valve. Flanged valves 4 and smaller will require. All safety valves should use a purchased or custom made drip pan elbow on the safety valve outlet for the following reasons. The drip pan elbow changes the outlet of the safety device from horizontal to vertical.

O never attach the vent discharge piping directly to the safety valve. Use table as shown drain to waste. Installation when a steam safety valve relieves steam is blown into the. Installation for power boilers and unfiredpressure vessel service.

The drip pan elbow changes the outlet of the safety device from horizontal to vertical. Pipe as shown on the drawings.