High-pressure union fitting
Delivery from 5,90 € to a Mondial Relay pickup point · free from 150 €
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High-pressure union fitting. Dimensions and construction vary depending on the selected version.
Choose the fitting, material, and version that correspond to your equipment.
Thread markings: "M" stands for male (external thread); "F" stands for female (internal thread). Metric, BSP, and NPT connections are distinct: ensure you follow the size and type indicated for the version.
Need help choosing? Send us a photo of your current part and your machine's data plate at contact.surfaned.distribution@gmail.com: we will confirm the correct part before you order.
Technical specifications
| Connection 1 | 1/8" F |
|---|---|
| Connection 2 | M21 F |
| Max pressure | 400 bar |
| Max temperature | 150 °C |
| Length | 42 mm |
| Height | 42 mm |
| Material | brass / plastic |
Values for: M21x1.5 F : 1/8" F / Brass / 400 bar / Length 42 mm / Insert 14 mm / Gray / 150 °C
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
| Fitting 1 | M21 F |
|---|---|
| Fitting 2 | 1/4" F |
| Max pressure | 250 bar |
| Max temperature | 120 °C |
Values for: M21x1.5 F: 1/4" F / Not specified / 250 bar / 120 °C
| Fitting 1 | M21 F |
|---|---|
| Fitting 2 | 1/4" F |
| Max pressure | 400 bar |
| Max temperature | 150 °C |
| Material | stainless steel / brass |
| Color | black |
| Series | ST-44 |
Values for: M21x1.5 F: 1/4" F / Not specified / 400 bar / Model ST-44 / 150 °C
Specifications for this model on request.
| Fitting 1 | M21 F |
|---|---|
| Fitting 2 | 1/4" M |
| Max pressure | 250 bar |
| Max temperature | 120 °C |
Values for: M21x1.5 M : 1/4" M / Not specified / 250 bar / 120 °C
| Fitting 1 | M21 F |
|---|---|
| Fitting 2 | 1/4" M |
| Max pressure | 400 bar |
| Max temperature | 150 °C |
| Material | stainless steel / brass |
| Color | black |
| Series | ST-44 |
Values for: M21x1.5 M : 1/4" M / Not specified / 400 bar / Model ST-44 / 150 °C
| Fitting 1 | M21 F |
|---|---|
| Fitting 2 | M21 F |
| Max pressure | 400 bar |
| Max temperature | 150 °C |
| Outside diameter | 14 mm sealing cone |
| Length | 44 mm |
| Height | 44 mm |
| Material | brass / plastic |
| Color | gray |
| Series | ST-40 |
Values for: M21x1.5 M : 1/4" M / Brass / 400 bar / 14 mm insert / Gray / 150°C
| Fitting 1 | 1/4" M |
|---|---|
| Fitting 2 | M21 short |
| Max pressure | 400 bar |
| Max temperature | 150 °C |
| Length | 27 mm |
| Height | 27 mm |
| Material | brass / plastic |
Values for: M21x1.5 M : 1/4" M / Brass / 400 bar / Length 27 mm / Insert 14 mm / Gray / 150 °C
| Fitting 1 | M24 F |
|---|---|
| Fitting 2 | 3/8" F |
| Max pressure | 700 bar |
| Max temperature | 150 °C |
Values for: 3/8" F / Stainless steel / 700 bar / Model ST-740 / Black / 150 °C
| Outlet | M24 F |
|---|---|
| Fitting 1 | M24 F |
| Fitting 2 | 3/8" F |
| Max pressure | 700 bar |
| Max temperature | 150 °C |
| Material | stainless steel |
| Series | ST-740 |
Values for: 3/8" F / Stainless steel / 700 bar / Model ST-740 / Red / 150 °C
| Fitting 1 | M24 F |
|---|---|
| Fitting 2 | 3/8" M |
| Max pressure | 700 bar |
| Max temperature | 150 °C |
Values for: 3/8" M / Stainless steel / 700 bar / Model ST-740 / Black / 150 °C
| Outlet | M24 F |
|---|---|
| Fitting 1 | M24 F |
| Fitting 2 | 3/8" M |
| Max pressure | 700 bar |
| Max temperature | 150 °C |
| Material | stainless steel |
| Series | ST-740 |
Values for: 3/8" M / Stainless steel / 700 bar / Model ST-740 / Red / 150 °C
| Connection 1 | 3/8" M |
|---|---|
| Connection 2 | 1/2" F |
| Max pressure | 350 bar |
| Max temperature | 150 °C |
| Length | 44 mm |
| Height | 44 mm |
| Material | galvanized steel |
Values for: 3/8" M : 1/2" F / Galvanized steel / 350 bar / Length 44 mm
| Connection 1 | 3/8" M |
|---|---|
| Connection 2 | 1/2" F |
| Max pressure | 350 bar |
| Max temperature | 150 °C |
| Length | 44 mm |
| Height | 44 mm |
| Material | stainless steel |
Values for: 3/8" M : 1/2" F / Stainless steel / 350 bar / Length 44 mm
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
| Fitting 1 | 1/4" F |
|---|---|
| Fitting 2 | 1/2" F |
| Max pressure | 400 bar |
| Max temperature | 150 °C |
| Length | 43 mm |
| Height | 43 mm |
Values for: 1/2" F : 1/4" F / Brass / 400 bar / Length 43 mm / Insert 14 mm / Blue / 150 °C
Specifications for this model on request.
| Connection 1 | 1/2" F |
|---|---|
| Connection 2 | 3/8" F |
| Max pressure | 300 bar |
| Max temperature | 150 °C |
| Height | 52 mm |
| Series | ST-241 |
Values for: 1/2" F : 3/8" F / Not specified / 300 bar / Model ST-241 / 150 °C
| Fitting 1 | 1/2" F |
|---|---|
| Fitting 2 | 3/8" M |
| Max pressure | 300 bar |
| Max temperature | 150 °C |
| Height | 56 mm |
| Series | ST-241 |
Values for: 1/2" F : 3/8" M / Not specified / 300 bar / Model ST-241 / 150 °C
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
| Fitting 1 | 1/2" M |
|---|---|
| Fitting 2 | 1/2" M |
| Max pressure | 10 bar |
| Material | stainless steel |
Values for: 1/2" M : 1/2" M / Stainless steel / Standard
| Connection 1 | R1/2" M |
|---|---|
| Connection 2 | R1/2" M |
| Max pressure | 25 bar |
| Max temperature | 150 °C |
| Length | 44.5 mm |
| Dimensions | SW27 |
| Material | brass |
Values for: 1/2" M : 1/2" M / Brass / Length 44.5 mm / 150 °C
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
| Fitting 1 | M21 F |
|---|---|
| Fitting 2 | M18 M |
| Max pressure | 400 bar |
| Max temperature | 150 °C |
| Height | 46 mm |
| Material | stainless steel / brass |
| Color | black |
| Series | ST-44 |
Values for: M21x1.5 F : M18 M / Not specified / 400 bar / ST-44 Model / Rotary
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.
Specifications for this model on request.