Pipe Joining Solutions
Pipe Couplings
High-performance pipe couplings for all pipe materials. No welding, no prep – only a torque wrench required. Save time and money with reliable plain-end couplings.
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Selecting the Right Pipe Coupling
Pipe couplings eliminate the need for pipe end preparation – no welding, threading, or beveling. Choose the right coupling for your application below. All three brands offer equivalent solutions for steel, cast iron, ductile iron, and plastic pipes.
| Application | Orbit | Straub | Teekay |
|---|---|---|---|
| Joining same-sized pipes | Flex Grip / Metal Lock | Metal Grip / Grip L | Axilock / PRIMA-LOCK |
| Repair clamp for leaking section | Open Flex Series | Open Flex / Rep-Flex | Axilock |
| Joining different OD pipes | Stepped Coupling | Step Flex 2 / 3 | PRIMA-STEP |
| Plastic-to-metal pipe join | Combo Lock | Combi Grip | Plastlock |
| Fire systems | Fire Protection Coupling | Metal Grip Fire Fence | Axilock-FP |
| Misalignment or movement | Flex Grip / Open Flex | Flex / Open Flex | Axiflex / PRIMA-FLEX |
| Plastic pipes (PE/PVC) | Plast Coupling | Plast Grip / Plast Pro | Plastlock / PRIMA-PLAST |
All Pipe Couplings
38 products
Flex Grip S
48.3mm
POA
Orbit
Flex Grip S
Flex Grip L
48.3mm
POA
Orbit
Flex Grip L
Metal Lock S
26.9mm - 406.4mm
POA
Orbit
Metal Lock S
Metal Lock L
48.3mm
POA
Orbit
Metal Lock L
Metal-Grip
30.0mm
POA
Straub
Metal-Grip
Grip L
33.7mm
POA
Straub
Grip L
Flex Grip Open L
48.3mm - 355.6mm
POA
Orbit
Flex Grip Open L
Open-Flex 1
48.3mm
POA
Straub
Open-Flex 1
Open-Flex 2
172.0mm
POA
Straub
Open-Flex 2
Step-Flex 2
219.1mm
POA
Straub
Step-Flex 2
Combo Lock
114.3mm - 114.3mm
POA
Orbit
Combo Lock
Combi-Grip
40.0mm
POA
Straub
Combi-Grip
Fire Protection Coupling
21.7mm - 406.4mm
POA
Orbit
Fire Protection Coupling
Flex 1
48.3mm
POA
Straub
Flex 1
Flex 2
172.0mm
POA
Straub
Flex 2
Plast Coupling
90.0mm - 250.0mm
POA
Orbit
Plast Coupling
Plast-Grip
40.0mm
POA
Straub
Plast-Grip
Flex Grip 2 S
168.3mm - 1219.2mm
POA
Orbit
Flex Grip 2 S
Muff Couplings Aluminium Table D/E
50mm to 300mm
POA
Dewater Products
Muff Couplings Aluminium Table D/E
Grip FF
25.0mm
POA
Straub
Grip FF
Grip
25mm
POA
Straub
Grip
D - Series Encapsulating Clamp
87.0mm to 219.1mm
POA
Orbit
D - Series Encapsulating Clamp
Elbow Repair Clamp
48.3mm to 508.0mm
POA
Orbit
Elbow Repair Clamp
Encapsulating Pipe Repair Clamp
from 98.0mm
POA
Orbit
Encapsulating Pipe Repair Clamp
Flex Grip 2 L
168.3mm - 1219.2mm
POA
Orbit
Flex Grip 2 L
Flex Grip 2P Long
42.4mm - 1016.0mm
POA
Orbit
Flex Grip 2P Long
Flex Grip Open S
48.3mm - 355.6mm
POA
Orbit
Flex Grip Open S
Open Flex 200-L
148.0mm - 2010.0mm
POA
Orbit
Open Flex 200-L
Open Flex 300-L
219.1mm - 1016.0mm
POA
Orbit
Open Flex 300-L
Open Flex 400-L
200.0mm - 1524.0mm
POA
Orbit
Open Flex 400-L
Repair Clamp 200mm
from 60.3mm
POA
Orbit
Repair Clamp 200mm
Pipe Repair Clamp Series 1 and 100mm long
48.3mm to 57.0mm
POA
Orbit
Pipe Repair Clamp Series 1 and 100mm long
Pipe Repair Clamp Series 1 and 400mm long
from 88.9mm
POA
Orbit
Pipe Repair Clamp Series 1 and 400mm long
Repair Clamp 55mm
from 48.3mm
POA
Orbit
Repair Clamp 55mm
Repair Clamp 300mm
from 88.0mm
POA
Orbit
Repair Clamp 300mm
Clamp 1PC
44.0mm
POA
Straub
Clamp 1PC
Clamp 2PC
88.0mm
POA
Straub
Clamp 2PC
Universal Dual Clamp
88.9mm to 323.9mm
POA
Orbit
Universal Dual Clamp
Compare Pipe Coupling Options
Our Straub and Orbit couplings are a direct alternative to Teekay couplings. Use the tables below to compare the Straub, Orbit and Teekay ranges by application, size and pressure, and find the Straub or Orbit equivalent for your Teekay model.
Straub Couplings – Swiss Engineered Performance
| Model | Size Range | Pressure Rating | Notes |
|---|---|---|---|
| Metal Grip | 30.0 – 609.6mm | 67 – 5 Bar | Axially restrained steel coupling |
| Grip L | 26.9 – 609.6mm | 46 – 1 Bar | Restraint for wider OD range |
| Metal Grip GT | 60.3 – 139.7mm | 37 – 32 Bar | High-pressure, compact grip |
| Metal Grip Fire Fence | 26.9 – 406.4mm | 67 – 8 Bar | Fire-rated restraint coupling |
| Eco Grip | 26.9 – 168.3mm | 6 Bar | Lightweight economy version |
| Combi Grip | 38.0 – 162.0mm | 16 Bar | Mixed material connection |
| Plast Grip | 39.0 – 162.0mm | 16 Bar | Designed for plastic pipes |
| Flex 1L / 2 / 3 / 4 | 48.3 – 4064.0mm | 25 – 1 Bar | Flexible, non-restrained |
| Open Flex 1L / 2 / 3 / GT | 48.3 – 4064.0mm | 25 – 1 Bar | Split-body style for repair access |
| Step Flex 2 / 3 | 250.0 – 4094.0mm | 25 – 2 Bar | For joining different OD pipes |
| Clamp SCE / SCZ | 44.0 – 420.0mm | 16 – 5 Bar | Encapsulating clamp for live repairs |
Orbit Couplings – Australian Industrial Range
| Model | Size Range | Pressure Rating | Notes |
|---|---|---|---|
| Flex Grip S / L / 2–4 | 20.0 – 4064.0mm | 32 – 2.5 Bar | Restrained pipe joining solution |
| Flex Grip S & Flex Grip 2 S | 20.0 – 355.6mm | 32 – 8 Bar | Repair clamps with split sleeve |
| Metal Lock S & Metal Lock L | 20.0 – 406.4mm | 32 – 12 Bar | High-strength stainless coupling |
| Fire Protection Coupling | 20.0 – 406.4mm | 32 – 12 Bar | Fire system compatible |
| Plast Coupling | 63.0 – 315.0mm | 20 – 16 Bar | Designed for PE/PVC pipe connections |
| Combo Lock | 38.0 – 162.0mm | 16 Bar | For mixed pipe types (plastic + steel) |
| Stepped Coupling | 30.0 – 114.3mm | 16 Bar | Joins mismatched diameter pipes |
| Open Flex 200 L / 300 L / 400-L | 148.0 – 1524.0mm | 25 – 2 Bar | Non-restrained coupling |
*Up to 5 Yrs WarrantyDownload Warranty PDF
Teekay Couplings - the Straub & Orbit Alternative
DeWater does not stock Teekay. The Axilock, Axiflex and PRIMA models below are listed for reference, our Straub and Orbit couplings above are a direct alternative for each.
| Model | Size Range | Pressure Rating | Notes |
|---|---|---|---|
| Axilock | 21.0 – 2200.0mm | PN16 | Rigid axially restrained coupling |
| Axilock-FP | 26.9 – 168.3mm | PN16 | Fire protection certified |
| Axiflex | 21.0 – 2200.0mm | PN16 | Flexible with ±4° deflection |
| Plastlock | 32.0 – 630.0mm | PN16 | Designed for PE/PVC plastic pipes |
| PRIMA-LOCK | 26.9 – 610.0mm | PN16 | Premium rigid coupling |
| PRIMA-FLEX | 26.9 – 610.0mm | PN16 | Premium flexible coupling |
| PRIMA-PLAST | 32.0 – 315.0mm | PN16 | Premium plastic pipe coupling |
| PRIMA-STEP | 26.9 – 219.1mm | PN16 | Stepped reducer coupling |
Common Applications
Pressure systems (potable water, mining, industrial plants)
Drainage and sewer lines
Fire protection systems
Temporary or emergency repairs
Vibration and movement zones (e.g., pump stations)
Joining dissimilar materials (PVC to HDPE, steel to ductile iron)
Installation Notes
No pipe end preparation required – no welding, threading, or beveling.
Only a torque wrench needed to install. Torque values indicated on each coupling.
Open-style couplings (Straub Open Flex, Orbit Open Flex) are ideal for retrofit and repair work.
Save time, space, and money compared to traditional flanged or welded connections.
Frequently Asked Questions
Related Products
Need Help Selecting the Right Coupling?
Our technical team can help you choose the right Straub or Orbit coupling, including a direct alternative to any Teekay coupling, for your application. Call us on 1300 271 290 or request a quote.