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Grooved Rigid Coupling
Grooved Rigid Coupli... Grooved rigid couplings are mechanical components ...
Grooved 90° Elbow
Grooved 90° Elbow Grooved 90°elbow is a type of pipe fitting that is...
Grooved Equal Tee
Grooved Equal Tee Grooved equal tee  has three openings of equal siz...
Grooved Mechanical Tee
Grooved Mechanical T... Grooved mechanical tee is a type of pipe fitting u...

Company News

Threaded fittings

2023-03-21

Threaded fittings are one of the oldest methods of joining piping systems. Just like socket weld fittings, threaded fittings are ideally used for small pipe diameters; where the diameter is NPS 2 or s...
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Development of grooved fittings

2023-03-21

According to the design specification of automatic sprinkler system, the connection of the system pipe should be groove joint or thread and flange connection;  Pipes with diameters equal to or greater...
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Installation requirements for grooved fittings

2023-03-21

1、Choose the proper sealing ring when ordering groove parts to choose the appropriate sealing ring in the pipeline different media requires different materials of sealing ring, there are eight differe...
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About ductile iron

2023-03-21

Ductile Iron is a kind of cast iron, which is renowned for several properties. For instance, ductile iron has superior impact and fatigue resistance, in addition to elongation, and wear resistance in ...
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Introduction to protection knowledge of fire trench fittings

2023-03-21

Fire trench pipe fittings play an important role in production and life. The following is to explain the protection knowledge of fire trench pipe fittings.  During installation, the diameter of the re...
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Grooved pipe fittings main production process

2023-03-21

Smelting process: Raw materials pig iron, scrap steel, reheating iron, carburizer and other raw materials in accordance with a certain proportion into the medium frequency electric furnace, the use of...
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Alibaba international website launched

2023-02-28

On February 28, 2023, Shandong Zhihua Pipe Industry officially entered the Alibaba International Station platform and joined hands with Alibaba to expand the overseas market, with a focus on developin...
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Shandong zhihua pipeline branch - Ruilan established

2022-11-11

On November 11, 2022, Hangzhou Ruilan Fire Technology Co., Ltd. officially established, as a subsidiary of Shandong Zhihua Pipe Industry Co., Ltd. Ruilan persists in the spirit of being enterprising a...
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