The entire Bolt is threaded, and this type of bolt has higher strength and wider range of use than hexagonal and double headed bolts. Hexagonal and double headed bolts are commodity grade bolts, expressed in performance grade. The fully threaded bolt is a specialized grade bolt, which is represented by the material grade. The material substitution for chemical equipment must be confirmed by the design before it can be represented. Once, it was seen on site that a 4.5 grade hexagonal bolt was used to replace a 8.8 grade bolt. This grade 4.5 bolt is not used in chemical engineering. Allthread Stud,B7 Full Thread Stud Blue,Full Thread Coating Stud Bolt,A320 Full Thread Stud with Nut AM FASTENER , https://www.asmefastener.com
Our company's products are engineering plastic valves. The valves are small in size, light in weight, simple in structure and leak-free, resistant to corrosion and acid and alkali. Pneumatic valves obtained three patents of the Patent Office, ZL982065426, 991271610. The manual valve obtained the Patent Office patent: ZL99211062.9.
We have developed the SMJ series and DNM series valve products with more than ten years of valve research results, and vigorously launched them to the market. The results have been achieved in Shougang Power Station, Yanshan Power Station and the chemical industry, which has changed the image of workers' large, stupid and leaky valves. In practical use, it has flexible switch, low loss, reduced labor intensity of valve maintenance workers, and saved maintenance funds.
Applicable medium: an aqueous solution of inorganic salts, a rare or concentrated solution of inorganic acids and alkalis.
Use temperature: -4 ∽ 70 ° C.
Features: It is one of the lightest plastics. Its yield, tensile and compressive strength and hardness are better than low-pressure polyethylene. It has outstanding rigidity, good heat resistance, easy molding and excellent cost. After modification, the kinetic properties, fluidity, and flexural modulus of elasticity are improved.
Beijing Oriental Qiate Valve Technology Co., Ltd. specializes in manufacturing pneumatic and manual valve products. We provide Dg25, Dg40, Dg50, Dg80, Dg100, Dg125, Dg150, Dg250 caliber valves (air-opening, gas-closed) to our customers.