An all-stainless JIS 10K flange end swing check valve — body, disc, arm and hinge pin in SS316 with SCS14A, PTFE gasket. 1/2″ to 4″ (DN15–DN100), the only swing check variant on Japanese flanges. Shell tested 3.0 MPa, seal 2.2 MPa.
State the size, the fluid and the flow direction — quotes within 2 working hours.
| Ends | JIS 10K flange — must match your pipework |
|---|---|
| Range | 1/2″ to 4″ (DN15–DN100), eight sizes |
| Pressure | JIS 10K |
| Temperature | not published — we obtain it from the factory |
| Body and disc | SS316 with SCS14A |
| Gasket | PTFE |
| Shell / seal test | 3.0 MPa / 2.2 MPa |
| Moving parts | One — the disc, on its hinge pin |
The eight-size dimension table with part numbers, the 9-item bill of materials and the test-pressure table are all on this page, as printed in the catalogue.
The same valve as the cast steel version, in an entirely different material.
A disc on a hinge inside an SS316 body, with JIS 10K flanges at both ends, in 1/2″ to 4″ (DN15 to DN100). The cast parts use SCS14A — the cast form of 316, not a lesser grade. The gasket is PTFE.
The flange is the same as the cast steel variant, the test pressures are the same, and it works the same way. Two things differ: the material — no carbon steel anywhere — and the size range, which starts at 1/2″ where cast steel only starts at 1½″. The cast steel answers back with 425 °C and sizes to 6″.
Body, disc, arm and bonnet in SS316 with SCS14A where cast; hinge pin, bolt and nut in SS316. Everything wetted is SS316 or PTFE.
Eight part numbers are published, 1/2″ to 4″. But dimensions are printed only for 3″ and 4″ — for the other six sizes, tell us the size and we measure a stocked unit.
The catalogue prints none. Three of the five swing check variants are the same — only the cast steel and the threaded SS316 state a temperature. We do not copy a figure across; we obtain it from the factory when it is needed.
That is the trade against the cast steel version: PTFE is more inert and cleaner, graphite takes more heat. For corrosive duty you want this one; for hot duty you want that one.
The disc, on an SS316 hinge pin. No handle, stem or actuator — so there is no packing and no gland to leak externally.
The range steps from 1″ to 1½″ — the same as the ANSI 150 SS316 variant. Eight part numbers in total.
All photographs of the stocked item, not renders.
A bright stainless body with the bolted bonnet above it. The same arrangement as the cast steel version — what differs is the material.
An SCS14A casting — the Japanese cast stainless grade, equivalent to CF8M. This is the only swing check variant specified in JIS material grades rather than ASTM.
Bolted bonnet above, raised face and bolt holes at the ends. The disc comes out through the top — leave headroom.
Everything that goes on a purchase order.
| Item | Detail |
|---|---|
| Size range | 1/2″ to 4″ (DN15 to DN100) |
| End connection | JIS 10K flange |
| Working pressure | JIS 10K |
| Working temperature | not published |
| Body and disc | SS316 with SCS14A cast parts |
| Gasket | PTFE |
| Shell test | 3.0 MPa |
| Seal test | 2.2 MPa |
| Moving parts | One — the disc, on its hinge pin |
| Parts in the list | 9 |
| Operation | Automatic. No handle, stem or actuator |
| Orientation | Flow follows the cast arrow · bonnet up on a horizontal run · flow upward on a vertical run |
| Not an isolating valve | Fit a gate valve or ball valve as well if you need to shut the line |
| Stock | Singapore and Malaysia warehouses — out within 24 hours |
Eight sizes, dimensions in millimetres. L face-to-face is the gap it needs in the run; D1 the bolt circle and z-d the hole pattern have to match the mating flange.
| Size | Part no | Flange OD D | Bolt circle D1 | Raised face D2 | Face-to-face L | Bolts z-d | Flange thk b | RF height f |
|---|---|---|---|---|---|---|---|---|
| 1/2″ | VL-S-SC-F-10K-08 | — | — | — | — | — | — | — |
| 3/4″ | VL-S-SC-F-10K-12 | — | — | — | — | — | — | — |
| 1″ | VL-S-SC-F-10K-16 | — | — | — | — | — | — | — |
| 1½″ | VL-S-SC-F-10K-24 | — | — | — | — | — | — | — |
| 2″ | VL-S-SC-F-10K-32 | — | — | — | — | — | — | — |
| 2½″ | VL-S-SC-F-10K-40 | — | — | — | — | — | — | — |
| 3″ | VL-S-SC-F-10K-48 | 185 | 150 | 126 | 241 | 4-19 | 18 | 2 |
| 4″ | VL-S-SC-F-10K-64 | 230 | 190.5 | 157.2 | 292 | 8-19 | 18 | 2 |
Raised face height f is 2 mm at every size, as printed.
The catalogue prints dimensions for 3″ and 4″ only. The other six sizes have part numbers but no published dimensions. We have left them blank rather than borrow figures from the ANSI 150 table — tell us the size and we measure a stocked unit before you order.
Face-to-face 241 mm and 292 mm — identical to the ANSI 150 SS316 variant at the same sizes. What differs is the flange drilling, and that is what decides whether it fits.
A JIS 10K flange will not bolt to an ANSI 150 SS316 flange, whatever the pressure rating says.
It does not rise between 3″ and 4″, unlike the ANSI 150 range which climbs from 19.5 to 24.3 mm. As printed.
This table carries neither. For support or overhead clearance calculations, ask us and we will measure a stocked unit.
Numbered to match the parts list below. The section shows the disc on its arm and hinge pin, the seat it lands on, and the bolted bonnet that has to come off to get it out.
| No | Part name | Material |
|---|---|---|
| 1 | Body | SCS14A & SS316 |
| 2 | Disc | SCS14A & SS316 |
| 3 | Arm | SCS14A & SS316 |
| 4 | Nut | SS316 |
| 5 | Hinge Pin | SS316 |
| 6 | Bolt | SS316 |
| 7 | Nut | SS316 |
| 8 | Gasket | PTFE |
| 9 | Bonnet | SCS14A & SS316 |
Nine items, all SS316, SCS14A or PTFE. Compare that with the cast steel variant, whose body is A216 WCB and whose bolting is alloy steel.
Not a lesser grade — it is the correct specification for a cast part, and chemically equivalent to wrought 316.
Not SS316. We publish the list as printed rather than silently correcting it — it is almost certainly SS316 like the other nut in the same list, but we do not guess. Ask us if it matters for a spares order.
And it is the only thing separating this list from the ANSI 150 SS316 list, which is identical except that its cast grade is SCS14A.
The disc, on its arm and hinge pin. No stem, no packing, no gland — so there is no external leak path other than the bonnet gasket.
Factory proof tests. Not working pressures.
| Item | Value |
|---|---|
| Nominal pressure | JIS 10K |
| Shell test | 3.0 MPa |
| Seal test | 2.2 MPa |
| Air seal test | 0.4 – 0.7 MPa |
| Max working temperature | not published |
They are manufacturing proof tests well above the working rating. The valve is not intended to operate there.
0.4 to 0.7 MPa, not a single figure — unlike the cast steel variant, which prints 0.6 MPa exactly. As printed.
The catalogue prints none. If your duty has a temperature limit, say so and we will get the figure from the factory — we will not borrow the 425 °C from the cast steel variant or the 180 °C from the threaded one.
All five, side by side: the comparison table.
Dimensions and part numbers are in the catalogue, as printed; stock, price and working temperature are not — send the list and we confirm all three.
Material and temperature, not the flange. Both are JIS 10K and both are shell tested at 3.0 MPa and seal tested at 2.2 MPa. This one is stainless throughout — body, disc, arm, hinge pin and bonnet in SS316 with SCS14A — with a PTFE gasket. The cast steel is carbon steel A216 WCB with a graphite gasket, and it is rated to 425 °C where this variant states no temperature at all.
Because the catalogue does not print one. Three of the five swing check variants state no temperature; only the cast steel and the threaded SS316 do. We do not copy a figure across from another variant — if temperature matters for your duty, say so and we will get it from the factory.
1/2″ to 4″ (DN15 to DN100), eight sizes. This is the only swing check variant on Japanese flanges — the cast steel variant only starts at 1½″. Note there is no 1¼″ in the list.
Because the catalogue prints dimensions for 3″ and 4″ only. Eight part numbers are published; two sets of dimensions are. We do not borrow figures from the ANSI 150 table — tell us the size you need and we measure a stocked unit before you order.
Body, disc, arm and bonnet in SS316 with SCS14A where cast; hinge pin, bolt and nut in SS316; PTFE gasket. Everything wetted is SS316 or PTFE — there is no carbon steel anywhere.
That is how the catalogue prints it. We publish the list as printed rather than silently correcting it — it is almost certainly SS316 like the other nut in the same list, but we do not guess. Ask us if it matters for a spares order.
Flow follows the arrow cast into the body; on a horizontal run the bonnet points up; on a vertical run flow must be upward. It must never be used on downward flow — for that use a spring check.
No. A JIS 10K flange does not mate with ANSI 150 — the bolt circle and hole pattern differ. For ANSI pipework use the ANSI 150 SS316 variant — the same stainless valve on American flanges.
Held in our Singapore and Malaysia warehouses, out within 24 hours of your PO; quotes within 2 working hours.
Related: all swing check valves · ANSI 150 cast steel for hot duty or above 4″ · Y-strainers to fit upstream · all low pressure valves.
