Description
Permanent 316L Socket-Weld Gap Control
Aquasol SteelSpace 316L socket weld spacer rings provide a consistent 1/16 in. (1.6 mm) fit-up gap for socket-weld pipe assemblies. Each spring-action ring is designed to seat against the socket wall during assembly, hold its position while welding and remain as a permanent part of the completed joint.
Choose SteelSpace when the application calls for a traditional, corrosion-resistant metal spacer rather than a water-soluble option. Confirm the required gap, material compatibility and welding procedure for the specific project before use.
Why Use SteelSpace Spacer Rings?
- 316L stainless steel: corrosion-resistant material suited to permanent socket-weld assemblies.
- Controlled 1/16 in. gap: establishes a repeatable 1.6 mm spacing without measuring or scribing each joint.
- Spring-action placement: the ring compresses slightly for insertion, then releases to hold against the inner socket wall.
- Open centre: supports visual checking during welding.
- Permanent solution: remains in the joint after welding—no water flushing or removal step.
- Quote-only support: request sizing and quantity assistance for USA or Canada delivery.
Standard Sizes and Item Numbers
| Item No. | Nominal Size | Thickness | Packaging |
|---|---|---|---|
| STS-0.375 | 3/8 in. | 1/16 in. / 1.6 mm | 25 per bag |
| STS-0.5 | 1/2 in. | 1/16 in. / 1.6 mm | 25 per bag |
| STS-0.75 | 3/4 in. | 1/16 in. / 1.6 mm | 25 per bag |
| STS-1.0 | 1 in. | 1/16 in. / 1.6 mm | 25 per bag |
| STS-1.25 | 1 1/4 in. | 1/16 in. / 1.6 mm | 25 per bag |
| STS-1.50 | 1 1/2 in. | 1/16 in. / 1.6 mm | 25 per bag |
| STS-2.0 | 2 in. | 1/16 in. / 1.6 mm | 25 per bag |
Request a quote with the nominal pipe size, joint material, quantity and required delivery location. This allows the correct ring size to be matched to the application.
Selection Guidance: SteelSpace vs. SoluGap
- Choose SteelSpace when a permanent 316L stainless steel ring is appropriate for the finished socket-weld assembly.
- Choose SoluGap when the spacer needs to dissolve during a post-weld water flush rather than remain in the joint.
- Choose the nominal size that matches the socket-weld pipe size; all standard SteelSpace rings provide the same 1/16 in. thickness.
Simple Installation
- Confirm the correct ring size and approved weld-fit-up requirement.
- Gently compress the outer edges to reduce the ring diameter for insertion.
- Position the ring inside the pipe and release it so spring action seats it against the socket wall.
- Align the pipe in the socket, then tack and weld in accordance with the approved welding procedure and specified interpass temperature.
Typical Uses
SteelSpace is suited to controlled socket-weld fit-up in process piping applications where a permanent stainless spacer is appropriate, including food and pharmaceutical facilities, power and industrial piping, shipbuilding, refineries, and other corrosion-conscious fabrication work.
Frequently Asked Questions
Does SteelSpace remain in the completed joint?
Yes. It is a permanent 316L stainless steel spacer ring and is intended to remain in the socket-weld joint after welding.
What size SteelSpace ring should I select?
Match the ring’s nominal size to the socket-weld pipe size. The standard range covers 3/8 in. through 2 in.; all standard rings provide a 1/16 in. thickness.
How is a SteelSpace ring installed?
Compress the outer edges slightly, insert the ring in the pipe and release it. The spring action holds the ring against the socket wall while the joint is positioned and welded.
Why is a controlled socket-weld gap important?
A specified gap gives the pipe room to respond to heating and cooling and supports repeatable fit-up. Always follow the project’s governing code and welding procedure.
Request a quote for SteelSpace 316L socket weld spacer rings, sizing assistance and availability.
