Technology

Our engineer team prepares some technology articles as below list, and hope it is helpful to clients for choosing suitable products. If you have any techncial question, please email or leave message to us, and we will be glad to reply you.

Dimension of roll grooved end

June 26, 2023

Roll groove is suitable for steel pipes with standard and light thickness. It has advantage of without removing any pipe material.

Dimension of cut grooved end

June 16, 2023

Cut groove can keep the integrity of the lining and coating without raised part. It is suitable for steel pipes with big thickness...

Dimension of cast grooved end

June 14, 2023

To raise efficiency, many factories take the method of cast groove for small size grooved pipe fittings and couplings, normally below 8" (DN200).

Fire sprinkler temperature ratings and color code table

June 12, 2023

Each closed-head fire sprinkler is held closed by either a heat-sensitive glass bulb or a two-part metal link held together with a fusible alloy.

Sprinkler nominal K-Factor

June 1, 2023

In fire protection system, the K-factor formula is used to calculate the volumetric flow rate from the fire sprinkler (sprinkler head), water mist nozzle...

BSPP, BSPT and NPT thread

May 26, 2023

Till today, in threaded connection world it is governed by 2 kinds -- British Standard Pipe Thread (BSP) and National pipe tapered (NPT).

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