how to repace a 90 degree pvc elbow joint

PVC pipe bending routine is divided into two ways: the first is DN15/DN20/DN25 bending, the general use of elbow springs, in the place you buy PVC pipe, let the seller, give you two same type of pipe spring, you will spring, inserted into the pipe mouth, force breaking, specific angle according to the actual situation required, increase or decrease the force path. The second kind: medium or large pipe, the use of spring is not good, after all, the elastic variable is different, you have to use pipe bender, the market is a lot. The elbow tool is a professional tool for pipe bending. The pipe is inserted into the pipe bender, and the handle is pressed down and naturally bent.

45-90 degree bending process for PVC threading pipe:

The spring bending device for 32mm eblow is directly bent 45 degrees elbow or 90 degrees elbow. The hardware store sells curved springs.

Above 32mm, only buy a PVC pipe elbow called "big arc bending" to thread.

PVC (polyvinyl chloride) is a kind of initiator of vinyl chloride monomer (VCM) such as peroxide and azo compound, or a polymer which is polymerized by free radical polymerization under the action of light and heat. Vinyl chloride homopolymer and vinyl chloride copolymer are collectively referred to as vinyl chloride resin. The material is a non crystalline material. Stabilizer, lubricant, auxiliary processing agent, pigment, impact resistance agent and other additives are often added to PVC materials in practical use. It has no flammability, high strength, weather resistance and excellent geometric stability. PVC has strong resistance to oxidants, reducing agents and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid and is not suitable for contacting aromatic hydrocarbons and chlorinated hydrocarbons.