Runxin valve codes — new numbering explained and converted
Decode Runxin's new five-digit valve codes position by position, convert old F-series codes (F67C1) to new numbers and back, and build a code from application, control type and flow rate.
1. The ranges DWT keeps on the shelf
These are the Runxin ranges DWT and most South African distributors stock — the industry-standard set for their flow classes. Spec one of these unless the duty genuinely demands otherwise: everything else in the catalogue is imported on order with a longer lead time.
F67 — 1" automatic filter valve
DWT stocked- Connections
- 1" F
- Rated flow
- 4 m3/h (6 m3/h -A riser)
- Duty
- Filter — F63 is the softener twin
- Common codes
- 53504 (F67C1, time) / 53604 (F67C3, meter)
Inlet LEFT — flow left to right
Facing the display, the inlet is on the LEFT — flow runs left to right. (Manual drawings; the meter probe wire runs to the right-hand outlet port.)
F63 — 1" automatic softener valve (downflow)
DWT stocked- Connections
- 1" M
- Rated flow
- 4 m3/h
- Duty
- Softener — F67 is the filter twin
- Common codes
- 63504 (F63C1, time) / 63604 (F63C3, meter)
Inlet LEFT — flow left to right
Facing the display, the inlet is on the LEFT — flow runs left to right. Same body platform as the F67 filter. NOTE: the newer F116 that Runxin positions as the F63 upgrade is piped the OPPOSITE way.
F75 / N75 — 2" automatic filter valve
DWT stocked- Connections
- 2" M
- Rated flow
- 10 m3/h
- Duty
- Filter — F74 / N74 is the softener twin
- Common codes
- 53510 (N75A1, time) / 53610 (N75A3, meter)
Inlet RIGHT — flow right to left
Facing the display, the inlet is on the RIGHT — flow runs right to left. This is where the direction flips from the smaller 1" valves.
F74 / N74 — 2" automatic softener valve
DWT stocked- Connections
- 2" M
- Rated flow
- 10 m3/h
- Duty
- Softener — F75 / N75 is the filter twin
- Common codes
- 63510 (F74A1, time) / 63610 (F74A3, meter)
Inlet RIGHT — flow right to left
Facing the display, the inlet is on the RIGHT — flow runs right to left. (Manual structure chart read against Runxin's own rear product photo; the flow meter sits on the left-hand outlet.)
F77 — 2" automatic valve, side- or top-mounted
DWT stocked- Connections
- 2" M
- Rated flow
- 18 m3/h
- Duty
- Softener (F77A) / filter (F77B)
- Common codes
- 63518 (F77A1) / 63618 (F77A3) / 53518 (F77B1, time only)
Inlet RIGHT — flow right to left
Facing the display, the inlet is on the RIGHT — flow runs right to left. (Dimension drawing, flow-meter figure and the pressure-gauge-on-inlet figure all agree.)
F112 — DN65 side-mounted automatic valve
DWT stocked- Connections
- DN65 flanged
- Rated flow
- 40 m3/h
- Duty
- Softener (F112A) / filter (F112B)
- Common codes
- 63540B (F112A1) / 63640B (F112A3) / 53540B (F112B1)
Inlet LEFT — flow left to right
Facing the display, the inlet is on the LEFT — flow runs left to right (pressure gauge on the left inlet, flow meter on the right outlet in Runxin's own drawings and install photo). Note this is OPPOSITE to the 2" F74/F75/F77 family.
2. How the new code works
New-style Runxin codes pack the specification into five digits: product family, platform, regeneration start, and rated flow. Type any code to decode it position by position.
6
Softener — downflow regeneration
3
Standard automatic (LED)
6
Volume (meter) start
02
Flow designation 2 in the code — confirm the model's actual rated service and backwash flows against the manufacturer's data before selecting
63602 corresponds to the old code F65B3.
F65 valves are available on order — longer lead time, and typically not readily stocked by South African distributors. Ask the branch whether a stocked range covers the duty. Facing the display, the inlet is on the LEFT — flow runs left to right. NOTE: the newer F130 replacement is piped the OPPOSITE way.
3. Convert between old and new codes
Enter either format — an old F- or N-series code (F67C1, N75A1) or a new numeric code (53504) — and get its counterpart from the official pairing.
F67C1 is now 53504.
F67 is a range DWT keeps on the shelf. Facing the display, the inlet is on the LEFT — flow runs left to right. (Manual drawings; the meter probe wire runs to the right-hand outlet port.)
4. Build a code from your requirement
Pick what the duty needs; the convention gives the new code, and the table shows the old code where one exists.
63602
In the table: old code F65B3.
F65 valves are available on order — longer lead time, and typically not readily stocked by South African distributors. Ask the branch whether a stocked range covers the duty. Facing the display, the inlet is on the LEFT — flow runs left to right. NOTE: the newer F130 replacement is piped the OPPOSITE way.
5. Which side is the inlet?
Runxin ranges do NOT all pipe the same way round, and plants have been laid out backwards because of it. Directions below are stated facing the controller display and were verified against Runxin’s own manuals and drawings. Before fabrication, always confirm against the moulded IN/OUT arrows on the valve body itself.
| Range | Direction | Notes |
|---|---|---|
| F671" F · 4 m3/h (6 m3/h -A riser)DWT stocked | Inlet LEFT — flow left to rightFacing the display, the inlet is on the LEFT — flow runs left to right. (Manual drawings; the meter probe wire runs to the right-hand outlet port.) | Facing the display, the inlet is on the LEFT — flow runs left to right. (Manual drawings; the meter probe wire runs to the right-hand outlet port.) |
| F631" M · 4 m3/hDWT stocked | Inlet LEFT — flow left to rightFacing the display, the inlet is on the LEFT — flow runs left to right. Same body platform as the F67 filter. NOTE: the newer F116 that Runxin positions as the F63 upgrade is piped the OPPOSITE way. | Facing the display, the inlet is on the LEFT — flow runs left to right. Same body platform as the F67 filter. NOTE: the newer F116 that Runxin positions as the F63 upgrade is piped the OPPOSITE way. |
| F752" M · 10 m3/hDWT stocked | Inlet RIGHT — flow right to leftFacing the display, the inlet is on the RIGHT — flow runs right to left. This is where the direction flips from the smaller 1" valves. | Facing the display, the inlet is on the RIGHT — flow runs right to left. This is where the direction flips from the smaller 1" valves. |
| F742" M · 10 m3/hDWT stocked | Inlet RIGHT — flow right to leftFacing the display, the inlet is on the RIGHT — flow runs right to left. (Manual structure chart read against Runxin's own rear product photo; the flow meter sits on the left-hand outlet.) | Facing the display, the inlet is on the RIGHT — flow runs right to left. (Manual structure chart read against Runxin's own rear product photo; the flow meter sits on the left-hand outlet.) |
| F772" M · 18 m3/hDWT stocked | Inlet RIGHT — flow right to leftFacing the display, the inlet is on the RIGHT — flow runs right to left. (Dimension drawing, flow-meter figure and the pressure-gauge-on-inlet figure all agree.) | Facing the display, the inlet is on the RIGHT — flow runs right to left. (Dimension drawing, flow-meter figure and the pressure-gauge-on-inlet figure all agree.) |
| F112DN65 flanged · 40 m3/hDWT stocked | Inlet LEFT — flow left to rightFacing the display, the inlet is on the LEFT — flow runs left to right (pressure gauge on the left inlet, flow meter on the right outlet in Runxin's own drawings and install photo). Note this is OPPOSITE to the 2" F74/F75/F77 family. | Facing the display, the inlet is on the LEFT — flow runs left to right (pressure gauge on the left inlet, flow meter on the right outlet in Runxin's own drawings and install photo). Note this is OPPOSITE to the 2" F74/F75/F77 family. |
| F713/4" M · 2 m3/h | Inlet LEFT — flow left to rightFacing the display, the inlet is on the LEFT — flow runs left to right. | Facing the display, the inlet is on the LEFT — flow runs left to right. |
| F653/4" F · 2 m3/h | Inlet LEFT — flow left to rightFacing the display, the inlet is on the LEFT — flow runs left to right. NOTE: the newer F130 replacement is piped the OPPOSITE way. | Facing the display, the inlet is on the LEFT — flow runs left to right. NOTE: the newer F130 replacement is piped the OPPOSITE way. |
| F693/4" F · 2 m3/h | Inlet LEFT — flow left to rightFacing the display, the inlet is on the LEFT — flow runs left to right. | Facing the display, the inlet is on the LEFT — flow runs left to right. |
| F681" M · 4 m3/h | Inlet LEFT — flow left to rightFacing the display, the inlet is on the LEFT — flow runs left to right. | Facing the display, the inlet is on the LEFT — flow runs left to right. |
| F1341.5" M · 8 m3/h | Inlet LEFT — flow left to rightFacing the display, the inlet is on the LEFT — flow runs left to right (the body is embossed OUT with an arrow on the right of the display face). | Facing the display, the inlet is on the LEFT — flow runs left to right (the body is embossed OUT with an arrow on the right of the display face). |
| F1331.5" M · 8 m3/h | Inlet LEFT — flow left to rightFacing the display, the inlet is on the LEFT — flow runs left to right (the body is embossed OUT with an arrow on the right of the display face). | Facing the display, the inlet is on the LEFT — flow runs left to right (the body is embossed OUT with an arrow on the right of the display face). |
| F992" M · 15 m3/h | Inlet LEFT — flow left to rightFacing the display, the inlet is on the LEFT — flow runs left to right. Careful: unlike the other 2" valves (F74/F75/F77), the F99 runs left to right — all three of its manual drawings agree. | Facing the display, the inlet is on the LEFT — flow runs left to right. Careful: unlike the other 2" valves (F74/F75/F77), the F99 runs left to right — all three of its manual drawings agree. |
| F96DN80 · 40-50 m3/h | Inlet LEFT — flow left to rightFacing the display, the inlet is on the LEFT and the outlet lower-right — flow runs left to right (labelled structure drawings with the display visible). | Facing the display, the inlet is on the LEFT and the outlet lower-right — flow runs left to right (labelled structure drawings with the display visible). |
| F1161" M · 4-6 m3/h | Inlet RIGHT — flow right to leftFacing the display, the inlet is on the RIGHT — flow runs right to left. TRAP: this is the OPPOSITE of the F63 it replaces (verified from the embossed IN/OUT on the body in the manual's rear views and the catalogue photo). | Facing the display, the inlet is on the RIGHT — flow runs right to left. TRAP: this is the OPPOSITE of the F63 it replaces (verified from the embossed IN/OUT on the body in the manual's rear views and the catalogue photo). |
| F1173/4" F · 2-3 m3/h | Inlet RIGHT — flow right to leftFacing the display, the inlet is on the RIGHT — flow runs right to left. TRAP: this is the OPPOSITE of the F65 it replaces (the IN embossing is visible on the right of the manual's display-facing view). | Facing the display, the inlet is on the RIGHT — flow runs right to left. TRAP: this is the OPPOSITE of the F65 it replaces (the IN embossing is visible on the right of the manual's display-facing view). |
| F1301" M · 5 m3/h | Inlet RIGHT — flow right to leftFacing the display, the inlet is on the RIGHT — flow runs right to left. TRAP: opposite to the F65/F69 generation they update (embossed IN/OUT in the manual's rear views). | Facing the display, the inlet is on the RIGHT — flow runs right to left. TRAP: opposite to the F65/F69 generation they update (embossed IN/OUT in the manual's rear views). |
| F1112" M · 20 m3/h | Differs by modelTop-mounted with a movable screen, so left/right depends on how the head is oriented — pipe to the moulded IN/OUT arrows on the valve body, not to the screen. | Top-mounted with a movable screen, so left/right depends on how the head is oriented — pipe to the moulded IN/OUT arrows on the valve body, not to the screen. |
| F952" M · 20 m3/h | Vertical connectionsService connections are VERTICAL (top/bottom distributor pipework on a seat frame) and the top/bottom assignment differs between models — e.g. Runxin draws the 93620 with outlet top and the 63620 with inlet top. Work from the model's own structure drawing. | Service connections are VERTICAL (top/bottom distributor pipework on a seat frame) and the top/bottom assignment differs between models — e.g. Runxin draws the 93620 with outlet top and the 63620 with inlet top. Work from the model's own structure drawing. |
| F147DN65 · 30 m3/h | Vertical connectionsService connections are VERTICAL: inlet bottom, outlet top (moulded IN/OUT arrows on the body per the manual's structure drawing). | Service connections are VERTICAL: inlet bottom, outlet top (moulded IN/OUT arrows on the body per the manual's structure drawing). |
| F793/4" M (F79) / 1" M (F82) · 2-3.5 m3/h | Both ports on one sideInlet and outlet are stacked on ONE side of the valve (bypass-style quick connections): the outlet is the UPPER port — the flow meter sits on it — and the inlet the lower. | Inlet and outlet are stacked on ONE side of the valve (bypass-style quick connections): the outlet is the UPPER port — the flow meter sits on it — and the inlet the lower. |
| F731" M · 3.5 m3/h | Both ports on one sideBoth service ports face down under the valve body: the outlet is the port the flow meter screws into, the inlet the one beside it — check the meter position before piping. | Both service ports face down under the valve body: the outlet is the port the flow meter screws into, the inlet the one beside it — check the meter position before piping. |
| F881.5" M (F88) / 1" M (F98) · 6-10 m3/h | Differs by modelRunxin's manual states the SAME hardware becomes either code by which way you point the outlet: outlet to the left = 93610/93606, outlet to the right = 17610/17606. Decide the direction on the drawing before ordering. | Runxin's manual states the SAME hardware becomes either code by which way you point the outlet: outlet to the left = 93610/93606, outlet to the right = 17610/17606. Decide the direction on the drawing before ordering. |
| F1181" (connectors a/b) · 4 m3/h | Differs by modelThe two G1 connectors SWAP roles between models: on F118A/F118AR connector a is the inlet; on F118B/F118BR connector a is the outlet (raw-water vs soft-water regeneration — Runxin's own table). Confirm the model before piping. | The two G1 connectors SWAP roles between models: on F118A/F118AR connector a is the inlet; on F118B/F118BR connector a is the outlet (raw-water vs soft-water regeneration — Runxin's own table). Confirm the model before piping. |
| F77S2" M · 15 m3/h | Differs by modelHandwheel valves with no display to orient by — work from the port labels on the structure drawing in the F77AS/BS manual, and note the side-mounted F77CS is installed with the connector upside down. | Handwheel valves with no display to orient by — work from the port labels on the structure drawing in the F77AS/BS manual, and note the side-mounted F77CS is installed with the connector upside down. |
| F561/2"-2" (by model) · 1-10 m3/h | Differs by modelPort positions differ by model — see the labels on each drawing in the F56 leaflet. Runxin's own note warns the F56F is piped OPPOSITE to the printed diagram. | Port positions differ by model — see the labels on each drawing in the F56 leaflet. Runxin's own note warns the F56F is piped OPPOSITE to the printed diagram. |
Ranges not listed here have no orientation stated in Runxin’s published documents — send the code with a quote request and the branch will confirm from the drawing before you commit a layout.
6. Full cross-reference table
The complete Runxin range beyond the stocked set is available on order — expect a longer lead time, as these models are typically not readily stocked by South African distributors.
Reference compiled from the official Runxin product catalogue, the code lists and structure drawings in Runxin’s per-series instruction manuals, and run-xin.com product pages. Runxin’s own documents occasionally print two codes for one valve — the notes column flags every case we found. Runxin is a trademark of its owner; DWT stocks and sources Runxin valves. Always confirm the exact model against the Runxin datasheet before ordering — variants (suffix letters, port sizes, riser sizes) matter in service.
Equipment for this duty
Send the water analysis and duty point, and the branch confirms exact selections, pricing and lead times — usually within one working day.
Request a quoteResults are indicative engineering estimates based on standard formulas and typical assumptions. They are not a design service; confirm any design against a full water analysis and the relevant manufacturer’s data.