Safety valve on the boiler installation of technical requirements

(1) Boilers with a rated evaporation greater than 0.5 t / h shall be equipped with at least two safety valves: a boiler with a rated evaporation of 0.5 t / h or less shall be fitted with at least one safety valve. Separable economizer outlet, steam superheater outlet must be installed safety valve. (2) Safety valve should be installed vertically in the pot, the highest position of the header. Between safety valve and drum or header, there shall be no steam outlet pipe and valve. (3) Lever safety valve to prevent movement of the hammer to move the device and limit the lever over the guide rails, spring-loaded safety valve to have to enhance the handle and prevent accidentally twist the adjustment screw device. (4) For boilers with rated steam pressure less than or equal to 3.82MPa, the throat diameter of safety valve shall not be less than 25mm. For boilers with rated steam pressure greater than 3.82MPa, the throat diameter of safety valve shall not be less than 20mm. (5) safety valve and the boiler connection pipe, the cross-sectional area of ​​not less than the safety valve inlet cross-sectional area. If several safety valves are installed together on a short tube connected directly to the drum, the cross-sectional area of ​​the short tube should not be 1.25 times the discharge area of ​​all safety valves. (6) safety valve should be installed generally exhaust pipe, exhaust pipe should be through a safe place, and have sufficient cross-sectional area to ensure that the exhaust gas flow. Safety valve exhaust pipe should be installed at the bottom of the positon has received a safe place of the hydrophobic pipe, the exhaust pipe and the hydrophobic pipe are not allowed to install the valve.

Spike Lights

LEDER technology`s newest update 10W spike lights super brightness compared with others. Great for illuminating your Patio, Garden Path, Driveway & Back Yard fences. Both make security and decoration with beautiful warm white lights. Unique quick-fit wire connectors included in the package,convenient for installation and cost saving.

This solar LED spike light has a dusk-to-dawn feature that automatically shuts off in the morning and comes on at night. It's an ideal way to enhance the look of your lawn garden area. And the solar powered light delivers bright illumination to your home's exterior by lighting dark areas along walkways, pathways and etc. The solar LED spike lights is easy to install, it is also environmentally friendly and provides lighting, wherever you need light. Just need to turn on the switch and push the stake into the soil. Made of resistant stainless steel for long lasting durability. In addition, it with IP44 waterproof rating, no worries about raining, snowing, frosting.

Features:

• DIY color selection function

• Easy installation

• Group and control multiple lights with the smart life app

• Energy saving save electricity

• Contracted design

• Color temperature :3000k-6000K

• stainless steel materials

• Type of protection: IP20 /IP65 (Some models)

• Warranty:3 - 5 years

Color-changing LED spike lights with remote control. Super bright & upgrade DIY color selecting function. Unique quick-fit low voltage wire connectors included in the package for easy installation. Cost saving for home landscape lighting project.

We have rich production experience in lighting. Except LED Spike Light, we also offered other product in Outdoor Lighting ,such as LED Flood Light , LED street Light , LED Inground Light ,LED Bollard Light ,LED Wall Washer,Outdoor Wall Light & step light as so on .

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JIANGMEN LEDERLIGHT LIGHTING Co.,LTD , https://www.ledpolelights.com