ASTM Standard Carbon Steel Flange Check Valve DN150 For Chemical
Industry
Carbon steel flange check valve description
Carbon steel flange check valve is also called one-way valve or
non-return valve, its function is to prevent the medium in the
pipeline from flowing back. The opening and closing parts are
automatically opened or closed by the flow and force of the medium
to prevent the valve from flowing back. Check valve belongs to the
automatic valve category, which is mainly used in pipelines with
one-way flow of medium, and only allows the medium to flow in one
direction to prevent accidents.
Main Material
| NO. | Name | Material |
| Chinese Standard | ASTM Standard |
| 1 | Body | HT250
QT450-10 | ASTM 126-ClassB
A536 65-45-12 |
| 2 | Disc | QT450-10
EPDM | A536 65-45-12
EPDM |
| 3 | Shaft | 1Cr13 | ASTM 410 |
| 4 | Cover | HT250
QT450-10 | ASTM 126-ClassB
A536 65-45-12 |
| 5 | O-Ring | EPDM | EPDM |
| 6 | Hand Weel | Carbon Steel | ASTM A570
|
Structural features of the check valve
1. Short structure length, its structure length is only 1/4~1/8 of
the traditional flange check valve
2. Small size and light weight, its weight is only 1/4~1/20 of the
traditional flange check valve
3. The valve disc closes quickly and the water hammer pressure is
small
4. It can be used in horizontal or vertical pipelines and is easy
to install
5. The flow channel is unobstructed and the fluid resistance is
small
6. Sensitive action and good sealing performance
7. The valve disc has a short stroke and a small closing impact
force
8. The overall structure is simple and compact, and the shape is
beautiful
9. Long service life and reliable performance
Who we are
SND has been manufacturing and supplying metal products for nearly
20 years. Utilizing production methods such as sand casting, lost
wax casting, lost foam casting, and precision machining, the
company produces items made from materials like cast iron, steel,
stainless steel, aluminum, and more. The company also provides
surface finishing and assembly services.
Through years of dedicated effort, we have successfully developed
products for a wide range of industries, including automotive, rail
transportation, agricultural machinery, chemical, energy, power,
water, air compressors, and construction.
Our factories operate under ISO9001-certified quality control
systems, ensuring consistent and reliable quality for every
component. Routine production processes include inspections such as
spectrometer analysis, ultrasonic testing, magnetic testing,
permeability checks, and evaluations of elongation, tensile
strength, and yield strength.
