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The TFV Series 37° Flare Flange Connection is a precision-engineered hydraulic connection designed for tube-to-port installations using an F37 sealing interface. Combining a 37° flare sealing surface with an elastomer O-ring, it provides reliable sealing performance while maintaining easy installation and maintenance.
Manufactured with precision-machined components, the TFV series ensures accurate alignment, smooth sealing surfaces, and dependable performance under medium- and high-pressure hydraulic conditions. The flange structure provides excellent mechanical stability while allowing efficient fluid transfer throughout the hydraulic system.
Constructed from premium carbon steel or stainless steel with corrosion-resistant surface treatment, the TFV Series offers excellent durability and wear resistance. Multiple tube sizes and flange dimensions are available, and OEM as well as customized manufacturing services are supported to meet different hydraulic application requirements.
Designed for hydraulic pumps, valve blocks, cylinders, manifolds, industrial machinery, and mobile hydraulic equipment, the TFV Series provides a reliable flange connection solution for modern hydraulic systems.
Designed for tube-to-port hydraulic connections
37° flare (F37) sealing design
O-ring assisted sealing
Reliable leak-resistant performance
Precision-machined sealing surfaces
High-strength carbon steel or stainless steel
Corrosion-resistant surface treatment
Easy installation and maintenance
OEM and customized specifications available
| size | D1 | C | O-Ring Order Code | |
| Inch | Tube Size | |||
| 1/2 | 16×2.0 | 9.5 | 8 | OR12X1.0X |
| 1/2 | 18×2.0 | 9.5 | 8 | OR14X1.1X |
| 1/2 | 20×2.0 | 11.5 | 8 | OR16X1.0X |
| 1/2 | 20×2.5 | 13.5 | 8 | OR16X1.0X |
| 1/2 | 25×2.5 | 13.5 | 10 | OR20X1.0X |
| 1/2 | 25×3.0 | 13.5 | 8 | OR20X1.0X |
| 3/4 | 20×2.0 | 13 | 8 | OR16X1.0X |
| 3/4 | 20×2.5 | 13.5 | 8 | OR16X1.0X |
| 3/4 | 25×2.5 | 12.5 | 10 | OR20X1.0X |
| 3/4 | 25×3.0 | 17.5 | 8 | OR20X1.0X |
| 3/4 | 30×3.0 | 16.5 | 8.5 | OR25X1.0X |
| 3/4 | 30×4.0 | 19 | 8.5 | OR22X1.0X |
| 1 | 25×2.5 | 19.5 | 10 | OR20X1.0X |
| 1 | 25×3.0 | 17.5 | 8 | OR20X1.0X |
| 1 | 30×3.0 | 16.5 | 8.5 | OR25X1.0X |
| 1 | 30×4.0 | 21.5 | 8.5 | OR22X1.0X |
| 1 | 38×2.5 | 19.5 | 9.5 | OR34X1.0X |
| 1 | 38×3.0 | 25 | 9 | OR34X1.0X |
| 1 | 38×4.0 | 25 | 10 | OR30X1.0X |
| 1 | 38×5.0 | 25 | 8 | OR28X1.0X |
| 1 1/4 | 30×3.0 | 25 | 8.5 | OR25X1.0X |
| 1 1/4 | 30×4.0 | 21.5 | 8.5 | OR22X1.0X |
| 1 1/4 | 38×3.0 | 19.5 | 9 | OR34X1.0X |
| 1 1/4 | 38×4.0 | 29.5 | 10 | OR30X1.0X |
| 1 1/4 | 38×5.0 | 27 | 8 | OR28X1.0X |
| 1 1/4 | 42×3.0 | 25.5 | 10 | OR37.82×1.78X |
| 1 1/4 | 42×4.0 | 31.5 | 10 | OR34X1.0X |
| 1 1/2 | 38×3.0 | 31.5 | 9 | OR34X1.0X |
| 1 1/2 | 38×4.0 | 27.5 | 10 | OR30X1.0X |
| 1 1/2 | 38×5.0 | 27.5 | 8 | OR28X1.0X |
| 1 1/2 | 42×3.0 | 25 | 10 | OR37.82×1.78X |
| 1 1/2 | 42×4.0 | 33.5 | 10 | OR34X1.0X |
| 1 1/2 | 50×3.0 | 31.5 | 11 | OR44.17×1.78X |
| 1 1/2 | 50×5.0 | 36 | 10 | OR41×1.78X |
| 1 1/2 | 50×6.0 | 36 | 10 | OR41×1.78X |
| 2 | 50×3.0 | 35 | 11 | OR44.17×1.78X |
| 2 | 50×5.0 | 41.5 | 10 | OR41×1.78X |
| 2 | 50×6.0 | 37.5 | 10 | OR41×1.78X |
| 2 | 60×3.0 | 35 | 12 | OR53.7×1.78X |
| 2 | 60×5.0 | 46 | 11 | OR50.52×1.78X |
| 2 | 60×6.0 | 46 | 11 | OR47.37×1.78X |
The TFV Series 37° Flare Flange Connection is widely used in hydraulic pumps, hydraulic valves, manifolds, cylinders, power units, construction machinery, agricultural equipment, mining machinery, industrial automation equipment, marine hydraulic systems, and other hydraulic applications requiring secure tube-to-port flange connections.
