Can check 16 security signs
Common sense to identify true and false PP-R:
1, see the packaging. The manufacturer must indicate the manufacturer, address, telephone number and other information on the packaging, while the fakes are more vague or even not.
2. Look at the spray marking on the pipe. The logos on the real goods include factory names, trademarks, specifications, models, production time, etc., and the fakes may be incomplete and the printing characters are rather vague. The printing on the real PP-R pipe is relatively clear.
3. The identification of the genuine goods on the fittings is relatively clear, with specifications and trademarks; while the fakes have no trademarks, and even the specifications are not available.
4. The inner wall of the PP-R pipe is smooth and odor-free; the inner wall of the counterfeit goods is rough, smelly and unpleasant.
5, true PP-R tube pure color, no noise, a matt color; false PP-R tube shiny bright, particularly bright or dull colors.
6, really PP-R tube feel soft; fake PP-R tube feel smooth or rough.
7. When the PP-R pipe is really installed, it should be smokeless and odorless under the normal welding temperature; the fake PP-R pipe will emit smoke and have a pungent smell.
Building materials
Slip-On flanges or SO flanges are commonly lower in price than weld-neck flanges, and to this effect are a popular choice for our customers. It is welded both inside and out to provide suffcient strength and prevent leakage. Slip-On Pipe Flanges. As made obvious by their name, these pipe flanges slip over the pipe. They're manufactured with an inside diameter that is slightly bigger than the pipe's outside diameter. These attachments are connected to the pipe via fillet weld at the top and bottom of the flange.
Slip On Plate Flanges,Slip On Flange,Class 150 Flanges,Carbon Steel Slip On Flanges
Shandong Zhongnuo Heavy Industry Co.,Ltd. , https://www.zhongnuoflanges.com