100 percent brand new and high quality Air compressor safety relief valve is an air pressure generating device The air compressor safety relief valve is used to help offering the action of the gas and ensure the protection Mainly used for the outstanding two grade air compressor protection Critical applications on pressure piping, pressure vessels Material: Brass With a 1 or 4" 12KG BSP thread Length: (approx.) 43mm or 1.7" Pressure: 1.2MPA Note: Safety valve installed outdoors should take appropriate protective measures to prevent rain, fog, dust, rust, dirt and other dirt invasive valve and discharge pipe, when the environment is below zero degrees centigrade, antifreeze should take the necessary measures to ensure safety valve reliability. This type of valve is in the pipe which should be installed properly in accordance with the general conditions Quantity:1pc Package includes: 1 x Air Compressor Safety Relief Valve Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.