19YRS
STAMPINGMASTERS ENTERPRISE CO., LTD.
886-3-4527557
886-3-4511072
No.20, Xinbeiyuan Rd., Zhongli Dist., Taoyuan City 320, Taiwan
www.tohatsu.com.tw

Products

Flat Washers
Die washer (material: S45C/copper)
PW 5591

Washers, also known as washers, are parts that are usually used to pad between the connector and the nut.
The main purpose is as a spacer to protect the surface of the connected parts from being scratched by the nut, to disperse the pressure of the nut on the connected parts, and to reduce the detachment caused by vibration.
Common materials: steel, stainless steel, copper, aluminum, iron, plastic, titanium
Main application industries: industry, mold, equipment...etc
Washers can be divided into three types
1. Flat washer
Function: Prevent the surface damage of the connector, increase the contact area and disperse the pressure.
2. Spring washer
Function: used to flexibly prevent loosening and vibration.
3. Anti-loose washers
Function: To prevent the loosening of the connector and prevent the rotation of the screw.

A gasket is a mechanical seal between two objects, usually used to prevent pressure, corrosion, and pipeline leakage between the two objects.
Since the machined surface cannot be perfect, the irregularities can be filled with spacers.
Main use: sealing of pipe flanges, valves, pumps, pressure vessels, etc. some professional equipment
The main application industries are petrochemical, refining, electric power, metallurgy, manufacturing and other industries

Specification

品號
Product No.
材質+處理
Material + Surface Treatment
內徑
Inner diameter
外徑
Outer diameter
厚度
Thickness
PW10 S45C 4.5 10 3
PW12 S45C 5.5 12 3
PW12-6 S45C 6 12 3
PW16 S45C 6.5 16 4
PW20 S45C 8 20 5
PW22 S45C 10 22 5
PW25 S45C 10 25 5
PW25-12 S45C 12 25 5
PW27 S45C 13 27 8
PW30 S45C 13 30 8
PW35 S45C 16 35 8
PW40 S45C 16 40 8
PW50 S45C 20 50 10
5591.050 紅銅 5.1 10 1
5591.060 紅銅 6.1 11 1
5591.080 紅銅 8.1 12.1 1
5591.100 紅銅 10.1 15.6 1
5591.120 紅銅 12.4 17.1 1
5591.160 紅銅 18 26 1
5591.200 紅銅 21.4 30.2 1
5591.240 紅銅 25 35 1
5591.300 紅銅 32.1 40 1

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