100x remote float valve during installation Notes: â— 100x remote float valve in the closed state, the body still exists within the pressurized fluid; â— 100x remote float valve repair before lifting the pipeline pressure and the ball valve is in the open position; â— maintenance Before disconnecting the power supply or air supply; â— Before the 100x remote float valve is repaired, it will detach the actuator from the bracket; â— Must disassemble and disassemble the upstream and downstream pipes of the ball valve after the unloading pressure has been removed; When reassembly, care must be taken to prevent damage to the sealing surfaces of the parts, especially non-metallic parts, and special tools should be used when removing the O-rings. â— Bolts on the flange of the 100x remote float valve must be symmetrically and gradually and evenly tightened. Should be with the ball valve rubber parts, plastic parts, metal parts and working medium (such as gas) are compatible. Working medium for gas, gasoline (GB484-89) can be used to clean metal parts. Non-metallic parts with pure water or alcohol cleaning; â— Disassembled individual parts can be cleaned by dipping. Non-metallic parts that remain undistracted may be cleaned with a clean, fine, silk-dipped cleaning cloth (to prevent the fibers from sticking to the parts). Cleaning must remove all the grease, dirt, glue, dust, etc. attached to the wall surface; â— 100x remote control float valve non-metallic parts should be removed from the cleaning agent immediately, not for a long time soaking; After the wall surface cleaning agent is volatilized (can be cleaned with silk cloth without cleaning agent), it should not be left on for a long time or it will be rusty and contaminated by dust. â— New parts of the 100x remote float valve need to be cleaned before assembly. â— Lubricate with grease. Grease should be ball valve metal materials, rubber parts, plastic parts and working medium are compatible. When the working medium is gas, for example, special 221 grease. Apply a thin layer of grease to the surface of the 100x remote float valve seal mounting groove. Apply a thin layer of grease to the rubber seal. Apply a thin layer of grease to the sealing and friction surfaces of the valve stem.
Tapping Screw
Although there are many types of tapping screws, they all have the following similarities:
(1) are generally made of carbonized carbon steel (accounting for 99% of total production). It can also be made of stainless steel or non-ferrous metals.
(2) The product must be heat treated. Carbon steel tapping screws must be carbonized and stainless steel tapping screws must be solution hardened. In order to make tapping screws to meet the requirements of the standard of mechanical properties and performance.
(3) The product surface hardness is high, the core toughness is good. That is, "soft inside strong outside". This is a major feature of tapping Screw performance requirements. If the surface hardness is low, it can not be screwed into the matrix; If the core toughness is poor, a twist will break, can not be used. So "inside soft outside steel" is self-tapping screw to meet the use of performance, very important requirements.
(4) The surface of the product needs surface protection treatment, generally electroplating treatment. Some product surface must be treated by phosphate (photostatting), such as wall panel self - tapping screws for photostatting.
(5) Production by cold heading process. It is recommended to use high-speed cold heading machine and high-speed wire rolling machine or high-speed planetary wire rolling machine. High speed is emphasized here to ensure product quality. Only the head of tapping screw produced by high-speed machine is well formed and the thread quality is high.
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