Single Plate Wafer Design Check Valve:
| Design Standard |
As per DIN EN 558-2, Testing Standard DIN 3230 / API 598 |
| Degree of Tightness |
as per DIN 3230 |
| Rating |
PN - 40 |
| Size Range |
DN15 - DN100 |
| Seat |
Standard shall be Metal to Metal or Teflon for compressed air, gas or
vacuum service, available on request. Opening Pressure as per Table-1
and Pressure Drop Characteristic as per Fig -1. Valves in higher alloys
like ASTM Gr CF3M, Hastelloy, Monel etc. are available on request |
| No. |
Parts Name |
Material |
| 1. |
Body |
ASTM - A 216 GR.WCB / A351 Gr.CF8M [Cast Steel, Cast Stainless Steel] |
| 2. |
Disk |
A 351 Gr. CF8 and CF8M [ Cast Stainless Steel ] |
| 3. |
Yoke 1 Star |
ASTM A 351 Gr. CF8 and CF8M [ Cast Stainless Steel] |
| 4. |
Spring |
AISI 304 / AISI or inconel if specified |
| 5. |
Circlip |
AISI 304 / AISI 316 |
| 6. |
Body Seat |
Cladded 13% Cr / Metal to Metal / Teflon Soft Seat |
|
