Check Valves · Swing Check Valves
CF8M Flanged Swing Check Valves
A CF8M stainless flanged swing check execution at the DN100 (4 inch) PN16 benchmark point: ASTM A351 CF8M cast body, flanged end connection and a sand-blasted surface finish, for dependable backflow prevention in corrosive-media fluid systems where a stainless body outruns cast iron or carbon steel.
Part of the Swing Check Valves family
Last updated: 2026-11
Specifications
| size range | NPS 2 - 24 Inch, DN50 - DN600 |
|---|---|
| pressure class | PN16 |
| body materials | ASTM A351 CF8M |
| model designation | LV-SCV-20250910-02 |
| size | DN100, 4 Inch |
| end connection | Flanged |
| surface treatment | Sand Blasting |
| product item | Stainless Steel |
| product type | Swing type check valve |
| design standard range | BS 1868, API 6D, DIN 3352 |
| pressure class range | Class 150 - 2500 LB, PN10 - PN420 |
| design temperature range | -196℃ - 593℃ |
| face to face standard | as per ASME B16.10 |
| test and inspection | API 598 |
| end connection standards | ASME B16.5, ASME B16.25, EN1092 series |
| connection ends | RF Flanged ends |
| design execution | API 6D - Full Bore |
| cover type | Bolted cover |
| body material options | ASTM A216 WCB, ASTM A216 WCC, ASTM A217 WC6, ASTM A217 WC9, ASTM A217 C5, ASTM A217 C12A, ASTM A352 LCB, ASTM A352 LCC, ASTM A351 CF8, ASTM A351 CF8M, ASTM A351 CF3M, ASTM A351 CF8C, CN3MN, CK3MCUN, CN7M, ASTM A890 4A (CD3MN), ASTM A890 5A (CE3MN), ASTM A890 6A (CD3MWCuN), ASTM B148 C95800, ASTM B148 C95500 |
Application & selection guidance
Use this execution where a PN16 flanged line carries corrosive or hygienic-sensitive media and reverse flow must be blocked with low cracking pressure: the swing disc opens on forward flow and seats on reversal without actuation. For screwed small-bore CF8M points see the compact CF8M execution; for higher ratings move to the duplex or forged-steel swing check executions.
Frequently asked questions
Why CF8M for a swing check body?
ASTM A351 CF8M is the cast 316-grade stainless: it resists the corrosive media that would pit cast iron or carbon steel bodies while keeping the casting economy of a swing check, which matters at the DN100 flanged benchmark size.
What are the benchmark specifications?
Stainless steel swing check valve: ASTM A351 CF8M body, DN100 (4 inch), PN16, flanged end connection, sand-blasted surface treatment.
How is this execution connected and finished?
The collected benchmark page lists a flanged end connection on a PN16 rating at the DN100 (4 inch) size, with a sand-blasted surface treatment on the ASTM A351 CF8M cast body; body material, size, pressure rating, end connection and surface finish are the five fields the source records for this model.
Ordering & documentation
Documents
Ask for the documentation set you need with the inquiry — typical items for this execution (material certificates, test reports to the listed inspection standard, dimensional drawings) are confirmed and supplied with the quotation.
Quotation
A quotation-ready inquiry states: nominal size and pressure rating, body and seat material preference, end connection, operation, and the service medium with temperature. Typical values on this page are benchmark reference ranges; the binding values are confirmed at quotation.
Sample & supply
Supply terms, order quantities and lead time are agreed per order — state the destination country and required schedule with the inquiry.
Storage & shipping
Store valves with seats and seals protected from UV, ozone and deformation, keep end-face protectors on until installation, and for elastomer- or PTFE-seated executions avoid prolonged outdoor storage — seat compounds age fastest in direct sunlight and freezing conditions.
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