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English Views: 0 Author: Jodie Publish Time: 2026-07-21 Origin: Site
SAE flange clamps lock hydraulic flange connections in place. Two styles. Two pressure ratings. Sizes from 1/2 inch to 3 inch. Pick the one that fits your system.
We stock four series of SAE flange clamps. They fall into two families by design, each available in two pressure classes.
Two halves bolt together around the flange
Easy to install and remove for service
FL: 3000 PSI, 1/2" to 3"
FS: 6000 PSI, 1/2" to 2"
One-piece body, slides over the flange
Stiffer, better in tight spaces
FL-W: 3000 PSI, 1/2" to 3"
FS-W: 6000 PSI, 1/2" to 2"
Service-friendly design
Two-piece construction means you can replace seals or hoses without pulling the entire assembly apart.
Even clamping force
Bolts pull from both sides. The flange face seats square against the O-ring every time.
Standard bolt patterns
Matches SAE J518 Code 61 (3000 PSI) and Code 62 (6000 PSI) flange dimensions.
Wide size range
FL covers 1/2" through 3". FS covers 1/2" through 2".
One-piece body
No halves to align. Slide it on, torque the bolts, done.
Compact footprint
Works where a split clamp would be too bulky. Common in tight manifold layouts.
High rigidity
Monoblock construction resists deformation under vibration and shock loads.
Same bolt specs
Uses the same bolt sizes as the split series. No special hardware needed.
Code | Flange | A (mm) | B (mm) | d (mm) | h (mm) | M (mm) | N (mm) | Bolt | Rating |
|---|---|---|---|---|---|---|---|---|---|
FL-08 | 1/2" | 54 | 45.6 | 9 | 6.2 | 38.1 | 17.5 | M8×25 | 34.5 MPa |
FL-12 | 3/4" | 65 | 51.8 | 11 | 6.2 | 47.6 | 22.2 | M10×30 | 34.5 MPa |
FL-16 | 1" | 70 | 58.4 | 11 | 7.5 | 52.4 | 26.2 | M10×30 | 34.5 MPa |
FL-20 | 1.1/4" | 79 | 72.6 | 11 | 7.5 | 58.7 | 30.2 | M10×30 | 27.6 MPa |
FL-24 | 1.1/2" | 94 | 82.2 | 13.5 | 7.5 | 69.9 | 35.7 | M12×35 | 27.6 MPa |
FL-32 | 2" | 102 | 96.4 | 13.5 | 9 | 77.8 | 42.9 | M12×35 | 20.7 MPa |
FL-40 | 2.1/2" | 114 | 108.2 | 13.5 | 9 | 88.9 | 50.8 | M12×40 | 20.7 MPa |
FL-48 | 3" | 135 | 130.6 | 17.5 | 9 | 106.4 | 61.9 | M16×50 | 13.8 MPa |
Code | Flange | A (mm) | B (mm) | d (mm) | h (mm) | M (mm) | N (mm) | Bolt | Rating |
|---|---|---|---|---|---|---|---|---|---|
FS-08 | 1/2" | 56 | 47.2 | 9 | 7.2 | 40.5 | 18.2 | M8×30 | 42 MPa |
FS-12 | 3/4" | 71 | 60 | 11 | 8.2 | 50.8 | 23.8 | M10×35 | 42 MPa |
FS-16 | 1" | 81 | 69.6 | 13.5 | 9 | 57.2 | 27.8 | M12×45 | 42 MPa |
FS-20 | 1.1/4" | 95 | 77.2 | 13.5 | 9.8 | 66.6 | 31.8 | M12×45 | 42 MPa |
FS-24 | 1.1/2" | 113 | 95 | 17.5 | 12 | 79.3 | 36.5 | M16×55 | 42 MPa |
FS-32 | 2" | 133 | 113.8 | 22 | 12 | 96.8 | 44.5 | M20×70 | 42 MPa |
SAE flange clamps show up wherever hydraulic lines run at medium to high pressure:
Excavators, loaders, bulldozers, and cranes
Tractors, harvesters, and sprayers
Injection molding and die-casting machines
Steel mill and mining equipment
Marine deck machinery and offshore systems
Hand Hydraulic flange clamps are forged from alloy steel, then quenched and tempered. Every batch goes through dimensional inspection before it leaves the floor. The result is a clamp that seats flush, holds torque, and does not crack under cyclic loads.
All four series follow SAE J518. Bolt patterns and flange face dimensions match Code 61 and Code 62 specs. If your flange head is standard, these clamps fit.
We ship from stock on common sizes. Custom orders are welcome. For full specs, see our hydraulic fittings catalog or reach out directly.
Are these flange clamps compatible with standard SAE flanges?
Yes. Hand Hydraulic flange clamps follow SAE J518 standards. They fit all standard SAE Code 61 and Code 62 flange heads from 1/2 inch to 3 inch.
What is the difference between split and solid flange clamps?
Split clamps (FL, FS) come in two halves. You bolt them around the flange from both sides. Solid clamps (FL-W, FS-W) are one-piece. You slide them over the flange from one end. Split clamps are easier to service. Solid clamps are stiffer and take up less space.
What pressure can these flange clamps handle?
The FL and FL-W series are rated for 3000 PSI (Code 61). The FS and FS-W series are rated for 6000 PSI (Code 62). Exact pressure varies by size. See the dimension tables above for per-size ratings in MPa.
What material are the flange clamps made from?
Hand Hydraulic flange clamps are forged from alloy steel, then quenched and tempered. The surface treatment adds corrosion resistance. They hold up under vibration and repeated loading.
Do you stock all sizes? What are the lead times?
Hand Hydraulic stocks common sizes from 1/2 inch to 2 inch in both 3000 PSI and 6000 PSI ratings. Larger sizes up to 3 inch are made to order. Standard orders ship within 3–5 business days. Contact us for bulk lead times.
Hydraulic FittingsSAE Flanges & AdaptersHydraulic AdaptersAbout Hand HydraulicContact Us
Send us your size and quantity. We respond within one business day.
Email: info@handhydraulic.com
WhatsApp: +86 18258773126