
Straight unions
Connect two equal-size hydraulic tubes in a straight line.
View sizes, drawings and part numbers →Find a Fluidline part number, check the size and series, and include the exact code in your quotation request. Browse DIN 2353 / ISO 8434-1 hydraulic fittings and related components.
105 part numbers
Part numbers and descriptions follow Fluidline’s product list. Select a part number to prepare an enquiry. Catalogue dimensions are reference values; confirm the supplied drawing and specification when ordering.
| Fluidline part number | Description | Tube OD (mm) | Series | Dimensions |
|---|---|---|---|---|
| H-M10L-SS | 10L TUBE NUT DIN2353 SS | 10 | L | View reference table |
| H-M12L-SS | 12L TUBE NUT DIN2353 SS | 12 | L | View reference table |
| H-M15L-SS | 15L TUBE NUT DIN2353 SS | 15 | L | View reference table |
| H-M18L-SS | 18L TUBE NUT DIN2353 SS | 18 | L | View reference table |
| H-M16S-SS | 16S TUBE NUT DIN2353 SS | 16 | S | View reference table |
| H-M20S-SS | 20S TUBE NUT DIN2353 SS | 20 | S | View reference table |
| H-M22L-SS | 22L TUBE NUT DIN2353 SS | 22 | L | View reference table |
| H-M25S-SS | 25S TUBE NUT DIN2353 SS | 25 | S | View reference table |
| H-M28L-SS | 28L TUBE NUT DIN2353 SS | 28 | L | View reference table |
| H-M30S-SS | 30S TUBE NUT DIN2353 SS | 30 | S | View reference table |
| H-M35L-SS | 35L TUBE NUT DIN2353 SS | 35 | L | View reference table |
| H-M38S-SS | 38S TUBE NUT DIN2353 SS | 38 | S | View reference table |
| H-M42L-SS | 42L TUBE NUT DIN2353 SS | 42 | L | View reference table |
| Fluidline part number | Description | Tube OD (mm) | Series | Dimensions |
|---|---|---|---|---|
| H-D10L-SS | 10L CUTTING RING DIN2353 SS | 10 | L | View reference table |
| H-D12L-SS | 12L CUTTING RING DIN2353 SS | 12 | L | View reference table |
| H-D15L-SS | 15L CUTTING RING DIN2353 SS | 15 | L | View reference table |
| H-D18L-SS | 18L CUTTING RING DIN2353 SS | 18 | L | View reference table |
| H-D16S-SS | 16S CUTTING RING DIN2353 SS | 16 | S | View reference table |
| H-D20S-SS | 20S CUTTING RING DIN2353 SS | 20 | S | View reference table |
| H-D22L-SS | 22L CUTTING RING DIN2353 SS | 22 | L | View reference table |
| H-D25S-SS | 25S CUTTING RING DIN2353 SS | 25 | S | View reference table |
| H-D28L-SS | 28L CUTTING RING DIN2353 SS | 28 | L | View reference table |
| H-D30S-SS | 30S CUTTING RING DIN2353 SS | 30 | S | View reference table |
| H-D35L-SS | 35L CUTTING RING DIN2353 SS | 35 | L | View reference table |
| H-D38S-SS | 38S CUTTING RING DIN2353 SS | 38 | S | View reference table |
| H-D42L-SS | 42L CUTTING RING DIN2353 SS | 42 | L | View reference table |
| Fluidline part number | Description | Tube OD (mm) | Series | Dimensions |
|---|---|---|---|---|
| H-G10L-SS | 10L STRAIGHT UNION DIN2353 SS | 10 | L | View reference table |
| H-G12L-SS | 12L STRAIGHT UNION DIN2353 SS | 12 | L | View reference table |
| H-G15L-SS | 15L STRAIGHT UNION DIN2353 SS | 15 | L | View reference table |
| H-G18L-SS | 18L STRAIGHT UNION DIN2353 SS | 18 | L | View reference table |
| H-G16S-SS | 16S STRAIGHT UNION DIN2353 SS | 16 | S | View reference table |
| H-G20S-SS | 20S STRAIGHT UNION DIN2353 SS | 20 | S | View reference table |
| H-G22L-SS | 22L STRAIGHT UNION DIN2353 SS | 22 | L | View reference table |
| H-G25S-SS | 25S STRAIGHT UNION DIN2353 SS | 25 | S | View reference table |
| H-G28L-SS | 28L STRAIGHT UNION DIN2353 SS | 28 | L | View reference table |
| H-G30S-SS | 30S STRAIGHT UNION DIN2353 SS | 30 | S | View reference table |
| H-G35L-SS | 35L STRAIGHT UNION DIN2353 SS | 35 | L | View reference table |
| H-G38S-SS | 38S STRAIGHT UNION DIN2353 SS | 38 | S | View reference table |
| H-G42L-SS | 42L STRAIGHT UNION DIN2353 SS | 42 | L | View reference table |
| Fluidline part number | Description | Tube OD (mm) | Series | Dimensions |
|---|---|---|---|---|
| H-W10L-SS | 10L UNION ELBOW 90° DIN2353 SS | 10 | L | View reference table |
| H-W12L-SS | 12L UNION ELBOW 90° DIN2353 SS | 12 | L | View reference table |
| H-W15L-SS | 15L UNION ELBOW 90° DIN2353 SS | 15 | L | View reference table |
| H-W18L-SS | 18L UNION ELBOW 90° DIN2353 SS | 18 | L | View reference table |
| H-W16S-SS | 16S UNION ELBOW 90° DIN2353 SS | 16 | S | View reference table |
| H-W20S-SS | 20S UNION ELBOW 90° DIN2353 SS | 20 | S | View reference table |
| H-W22L-SS | 22L UNION ELBOW 90° DIN2353 SS | 22 | L | View reference table |
| H-W25S-SS | 25S UNION ELBOW 90° DIN2353 SS | 25 | S | View reference table |
| H-W28L-SS | 28L UNION ELBOW 90° DIN2353 SS | 28 | L | View reference table |
| H-W30S-SS | 30S UNION ELBOW 90° DIN2353 SS | 30 | S | View reference table |
| H-W35L-SS | 35L UNION ELBOW 90° DIN2353 SS | 35 | L | View reference table |
| H-W38S-SS | 38S UNION ELBOW 90° DIN2353 SS | 38 | S | View reference table |
| H-W42L-SS | 42L UNION ELBOW 90° DIN2353 SS | 42 | L | View reference table |
| Fluidline part number | Description | Tube OD (mm) | Series | Dimensions |
|---|---|---|---|---|
| H-GE10L-1/4"-GED-SS | 10L X 1/4" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 10 | L | View reference table |
| H-GE10L-1/2"-GED-SS | 10L X 1/2" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 10 | L | View reference table |
| H-GE12L-1/4"-GED-SS | 12L X 1/4" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 12 | L | View reference table |
| H-GE12L-1/2"-GED-SS | 12L X 1/2" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 12 | L | View reference table |
| H-GE15L-1/2"-GED-SS | 15L X 1/2" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 15 | L | View reference table |
| H-GE18L-1/2"-GED-SS | 18L X 1/2" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 18 | L | View reference table |
| H-GE16S-1/2"-GED-SS | 16S X 1/2" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 16 | S | View reference table |
| H-GE20S-3/4"-GED-SS | 20S X 3/4" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 20 | S | View reference table |
| H-GE22L-3/4"-GED-SS | 22L X 3/4" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 22 | L | View reference table |
| H-GE25S-1"-GED-SS | 25S X 1" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 25 | S | View reference table |
| H-GE25S-1/2"-GED-SS | 25S X 1/2" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 25 | S | View reference table |
| H-GE28L-1"-GED-SS | 28L X 1" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 28 | L | View reference table |
| H-GE30S-11/4"-GED-SS | 30S X 11/4" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 30 | S | View reference table |
| H-GE35L-11/4"-GED-SS | 35L X 11/4" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 35 | L | View reference table |
| H-GE38S-11/2"-GED-SS | 38S X 11/2" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 38 | S | View reference table |
| H-GE42L-11/2"-GED-SS | 42L X 11/2" BSPP MALE CONNECTOR DIN2353 ED SEAL SS | 42 | L | View reference table |
| Fluidline part number | Description | Tube OD (mm) | Series | Dimensions |
|---|---|---|---|---|
| H-GE10L-1/4"-NPT-SS | 10L X 1/4" NPT MALE CONNECTOR DIN2353 SS | 10 | L | View reference table |
| H-GE10L-1/2"-NPT-SS | 10L X 1/2" NPT MALE CONNECTOR DIN2353 SS | 10 | L | Dimensions on request |
| H-GE12L-1/4"-NPT-SS | 12L X 1/4" NPT MALE CONNECTOR DIN2353 SS | 12 | L | View reference table |
| H-GE12L-1/2"-NPT-SS | 12L X 1/2" NPT MALE CONNECTOR DIN2353 SS | 12 | L | View reference table |
| H-GE15L-1/2"-NPT-SS | 15L X 1/2" NPT MALE CONNECTOR DIN2353 SS | 15 | L | View reference table |
| H-GE18L-1/2"-NPT-SS | 18L X 1/2" NPT MALE CONNECTOR DIN2353 SS | 18 | L | View reference table |
| H-GE16S-1/2"-NPT-SS | 16S X 1/2" NPT MALE CONNECTOR DIN2353 SS | 16 | S | View reference table |
| H-GE20S-3/4"-NPT-SS | 20S X 3/4" NPT MALE CONNECTOR DIN2353 SS | 20 | S | View reference table |
| H-GE22L-3/4"-NPT-SS | 22L X 3/4" NPT MALE CONNECTOR DIN2353 SS | 22 | L | View reference table |
| H-GE25S-1"-NPT-SS | 25S X 1" NPT MALE CONNECTOR DIN2353 SS | 25 | S | View reference table |
| H-GE28L-1"-NPT-SS | 28L X 1" NPT MALE CONNECTOR DIN2353 SS | 28 | L | View reference table |
| Fluidline part number | Description | Tube OD (mm) | Series | Dimensions |
|---|---|---|---|---|
| H-T10L-SS | 10L EQUAL UNION TEE DIN2353 SS | 10 | L | View reference table |
| H-T12L-SS | 12L EQUAL UNION TEE DIN2353 SS | 12 | L | View reference table |
| H-T15L-SS | 15L EQUAL UNION TEE DIN2353 SS | 15 | L | View reference table |
| H-T16S-SS | 16S EQUAL UNION TEE DIN2353 SS | 16 | S | View reference table |
| H-T18L-SS | 18L EQUAL UNION TEE DIN2353 SS | 18 | L | View reference table |
| H-T20S-SS | 20S EQUAL UNION TEE DIN2353 SS | 20 | S | View reference table |
| H-T25S-SS | 25S EQUAL UNION TEE DIN2353 SS | 25 | S | View reference table |
| Fluidline part number | Description | Tube OD (mm) | Series | Dimensions |
|---|---|---|---|---|
| H-EW10L-SS | 10L SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 10 | L | View reference table |
| H-EW12L-SS | 12L SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 12 | L | View reference table |
| H-EW15L-SS | 15L SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 15 | L | View reference table |
| H-EW18L-SS | 18L SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 18 | L | View reference table |
| H-EW16S-SS | 16S SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 16 | S | View reference table |
| H-EW20S-SS | 20S SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 20 | S | View reference table |
| H-EW22L-SS | 22L SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 22 | L | View reference table |
| H-EW25S-SS | 25S SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 25 | S | View reference table |
| H-EW28L-SS | 28L SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 28 | L | View reference table |
| H-EW30S-SS | 30S SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 30 | S | View reference table |
| H-EW35L-SS | 35L SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 35 | L | View reference table |
| H-EW38S-SS | 38S SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 38 | S | View reference table |
| H-EW42L-SS | 42L SWIVEL ADJ ELBOW 24° CONE O-RING DIN2353 SS | 42 | L | View reference table |
Female NPT hydraulic ball valves from the Fluidline list. Pressure values in the descriptions apply to the listed valve only; confirm service conditions and dimensions with your quotation.
Include the valve connection size, thread type, material, fluid and operating conditions in your enquiry.

View the hydraulic ball valve guide and download the selection catalogue →
| Fluidline part number | Description | Tube OD (mm) | Series | Dimensions |
|---|---|---|---|---|
| H-BV3-F-1/2"-NPT | 1/2" DIN FEMALE BALL VALVE NPT 500BAR SS316/L | — | — | Dimensions on request |
| H-BV4-F-3/4"-NPT | 3/4" DIN FEMALE BALL VALVE NPT 315BAR SS316/L | — | — | Dimensions on request |
| H-BV5-F-1-NPT | 1" DIN FEMALE BALL VALVE NPT 315BAR SS316/L | — | — | Dimensions on request |
| H-BV5-F-1 1/4"-NPT | 1 1/4" DIN FEMALE BALL VALVE NPT 315BAR SS316/L | — | — | Dimensions on request |
| H-BV5-F-1 1/2"-NPT | 1 1/2" DIN FEMALE BALL VALVE NPT 250BAR SS316/L | — | — | Dimensions on request |
| H-BV5-F-2"-NPT | 2" DIN FEMALE BALL VALVE NPT 250BAR SS316/L | — | — | Dimensions on request |
No matching part numbers. Try a tube size such as 12L or a term such as NPT.

Connect two equal-size hydraulic tubes in a straight line.
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Connect metric hydraulic tube to a threaded equipment port.
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Turn an equal-size hydraulic tube run through 90° with a DIN 2353 union elbow.
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Create a branch in a hydraulic tube run with a DIN 2353 equal union tee.
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The cutting ring is the component driven onto the tube during assembly of a DIN 2353 bite-type connection.
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The union nut drives the matched cutting ring during assembly of a DIN 2353 hydraulic tube connection.
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SS316/L female NPT valves: six sizes, part numbers, listed pressures and a downloadable selection catalogue.
View ball valves →Send the connection details and operating conditions. Fluidline can confirm the supplied configuration, availability and supporting documentation with your quotation.