Product
Telescopic Steel Union
Low-pressure telescopic steel union that compensates axial thermal expansion and installation misalignment.
Quick answer
Low-pressure telescopic steel union (1.6 MPa) with ±20–40 mm compensation for mud tanks — not for HP fracturing.
Key facts
- Product type : Oilfield fitting
- Application : Fracturing / cementing / wellhead
- Country of origin : CN
Telescopic steel union absorbs pipeline thermal movement and installation misalignment, reducing extra stress on joints. Cast or forged steel body with metal–rubber composite seal and hammer-on wing nut for fast make-up.
Three-piece set: wing nut, telescopic male threaded body and replaceable seal. Body may be welded to mud tanks or pipelines; typical compensation ±20–40 mm.
Rated 1.6 MPa for low-pressure service only — not for fracturing main lines. Sizes 4"–14"; 16" custom.
Specifications
| Rated Working Pressure | 1.6 MPa |
|---|---|
| Nominal Sizes | 4", 6", 8", 10", 12", 14"; 16" custom |
| Telescopic Compensation | ±20–40 mm |
| Main Material | Cast / forged steel, anti-rust red paint |
| Seal | NBR + metal sealing ring |
| Service | Mud tanks, LP piping — not for HP fracturing |
Features
- Axial telescopic compensation for thermal and alignment offset
- Hammer-on wing nut — no bolts required
- Field-replaceable metal–rubber seals
- Weldable body for mud-tank installation
- Low-pressure only; protect seals from sharp debris