Two halves that clamp around a flange adaptor, so the joint can be broken without rotating the pipework — quick service without cutting the line. For hydraulic systems under high pressure, vibration and shock.
Send the size, code (61/62), cut or uncut, material and quantity — a quote comes back within 2 working hours.
| Standard | SAE J518 · ISO 6162 |
|---|---|
| Series | 3000 PSI (Code 61) · 6000 PSI (Code 62) |
| Type | Cut (two halves) · uncut (full ring) |
| Mates with | Flange adaptor — O-ring side / flat side head |
| Material | Carbon steel ST52.3/S355 · stainless SS316 |
| Bolts | Grade 8.8 yellow zinc · SS304/SS316 for stainless |
Full dimension tables per size are in the catalogues below, as printed.
| At a glance | Cut · two halves | Uncut · one piece |
|---|---|---|
| Form | 2 separate clamps | Solid ring |
| Installation | Mid-run, on installed lines | Slid on from the pipe end |
| Use it for | Service & retrofit | New fabrication |
The split flange is one of the SAE flange types. A pair of halves clamps around a flange adaptor — a head with an O-ring groove on one side or a flat face on the other — and four bolts pull it tight. Because the flange is split, the joint can be opened for service or component replacement without rotating or cutting the pipe run. Used in hydraulic systems under high pressure, vibration and shock.
Split flanges use the same SAE J518 bolt pattern as the SAE flange at the same size and code — measure the long-side bolt centres to identify both. All figures as printed in the catalogues.
| Size | Code 61 · bolt pattern (mm) | Code 62 · bolt pattern (mm) |
|---|---|---|
| 1/2″ | 38.10 × 17.48 | 40.49 × 18.24 |
| 3/4″ | 47.63 × 22.23 | 50.80 × 23.80 |
| 1″ | 52.37 × 26.19 | 57.15 × 27.76 |
| 1¼″ | 58.72 × 30.18 | 66.68 × 31.75 |
| 1½″ | 69.85 × 35.71 | 79.38 × 36.50 |
| 2″ | 77.77 × 42.88 | 96.82 × 44.45 |
| 2½″ | 88.90 × 50.80 | 123.80 × 58.70 |
| 3″ | 106.38 × 61.93 | 152.40 × 71.40 |
| 3½″ | 120.65 × 69.85 | — |
| 4″ | 130.18 × 77.77 | — |
| 5″ | 152.40 × 92.08 | — |
Bolt torques match the SAE flange at the same size & code — Code 61: M8/32 Nm (1/2″) up to M16/295 Nm (3″+); Code 62: M8/32 up to M30/650 Nm (3″). Full tables on the SAE flanges page. Lightly torque every screw first, then work up across the pattern, not around it — to avoid breaking a clamp.
Dimensions and part numbers are in the catalogues; stock and price are not — send us the list and we confirm both. More catalogues in the catalogue library.
Two halves that clamp around a flange adaptor, so the joint can be broken without rotating the pipework — quick service without cutting the line. To SAE J518 / ISO 6162, in 3000 PSI (Code 61) and 6000 PSI (Code 62) designs.
Uncut is a one-piece full ring — fitted by sliding it on from the pipe end. Cut splits into two halves — it can be fitted and removed mid-run without opening the end; that is the service advantage.
When the connection has to be broken regularly for service or component replacement. The split flange clamps a flange adaptor (an O-ring side or flat side head), so the line can be broken without rotating or cutting the pipe.
No. The bolt-hole spacing differs at every size — at 1/2″ 38.10 mm (Code 61) vs 40.49 mm (Code 62) — widening with size. Measure the long-side bolt centres to identify the installed code.
The same as the SAE flange at the same size & code — e.g. 2″ Code 61 M12 at 130 Nm, 2″ Code 62 M20 at 550 Nm. Lightly torque every screw first, then work up across the pattern — not around it — to avoid breaking a clamp. Full tables on the SAE flanges page.
Carbon steel (ST52.3/S355) as the default, or SS316 for corrosive environments. Bolts grade 8.8 yellow zinc for carbon steel; SS304/SS316 for stainless.
Yes — cut and uncut in both codes, with matching flange adaptors, bolts and O-rings, in our regional warehouses in Singapore and Malaysia. Goods leave the warehouse within 24 hours of your PO, with the delivery schedule confirmed in the quotation.
State the size, code (61/62), cut or uncut, material and quantity — with adaptors if needed — via WhatsApp ★ Google reviews ▶ YouTube channel or the contact form. A quote comes back within 2 working hours.
See also hydraulic SAE flanges, blind flanges, all flanges, and hydraulic steel tubes — or read this page in Bahasa Indonesia.
