Water soluble socket welding spacer ring / SoluGap®: Perfect For Socket Weld Gap Measurement

What is water soluble socket welding spacer ring / SoluGap®?

Solugap by supertech services pvt ltd

Water soluble socket spacer ring / SoluGap® a specially engineered, patented design which offers an economical, inventive solution to socket welding needs.

Compatible with any metal, SoluGap® provides the 1/16ʺ (1.6 mm) minimum gap required by ANSI 31.1, Section III, ASME, US Navy, and Military Codes, eliminating the need for pre-measuring and guesswork. SoluGap® is also available in 1/8″ (3.2 mm) thickness

SoluGap® features a unique 3-tabbed edge design that allows the spacers to remain secure in any pipe orientation.

SoluGap® is U.S. manufactured and comprised of Aquasol’s environmentally safe, water soluble composite board. It dissolves completely and rapidly in most liquids, allowing for easy post-weld cleanup.

Available in a variety of sizes ranging from 1/2ʺ to 2 1/2ʺ in diameter, SoluGap® is easy to install and ready to use, providing the smartest solution to your socket welding needs.

Water soluble socket welding spacer ring / SoluGap® for welding :

Purging paper for welding, traditionally had significant limitations as they were inefficient, costly, and labor-intensive. Additionally, conventional purge systems must be placed far from the weld zone (10-20 ft.) adding unnecessary inconvenience and costs to the welding process.

To overcome these limitations, Aquasol Water Soluble Paper and Tape (Purging paper for welding) were introduced. Together these components can be constructed by hand into unique purge dams. They are able to be placed within close proximity of the weld zone, thereby increasing efficiency of the entire welding process.

Supertech Services Pvt Ltd is Aquasol Purging Paper and Water Soluble Paper Supplier in India.

Solugap for welding

For Socket Weld Gap Measurement – Trust Aquasol’s Solugap® 

Aquasol Solugap Water Soluble Socket Welding Spacer Ring

When it comes to welding, nothing is more important than to ensure precise measurements have been taken in order to achieve the highest quality weld. This is especially the case for socket welding, which requires a gap between the two pipes being joined to allow for expansion and contraction of the pipe due to temperature changes. 

Aquasol welding’s SoluGap® ensures a precise even gap is realized to meet quality control objectives every time.

SoluGap is a water-soluble spacer ring that is inserted into the socket weld to create a gap for pipe expansion. SoluGap provides the 1/16ʺ (1.6 mm) minimum gap required by ANSI 31.1, Section III, ASME, US Navy, and Military Codes, eliminating the need for pre-measuring and guesswork. SoluGap is also available in 1/8″ (3.2 mm) thickness.

A gap between the two pipes in a socket weld means the difference between a good weld and a bad weld. Socket welding gap rings are used to eliminate cracked welds by providing a space for the pipe to expand as it becomes warmer in temperature. The more heat is applied, the more materials tend to expand and soften. In the case of piping systems, linear expansion and contraction caused by this expansion could lead to costly mistakes when a pipe joint expands so much it cracks. For example, if a run of pipe is constrained at both ends, as it heats up linear expansion will cause compressive stress on the material. When this undue force exceeds the allowable stress on the material, it will result in damage to the pipe and potentially brackets, fittings, and valves. Therefore, the use of socket welding gap rings reduces the need of having to cut and replace pipe if the weld has failed due to the expansion of the pipe and lack of a gap.

When assuring the correct measurement for your socket weld gap, the best option for both accuracy and consistency is the selection of a socket weld spacer ring. Spacer rings eliminate the need for hand measuring the gap between the two joining pipes simply by just being inserted into the socket gap and taking up the space that is needed for the gap. A spacer ring can then either be removed by the introduction of water, if it is a water-soluble socket weld spacer ring, or become a permanent part of the weld. The premeasured, standardized width of spacer rings ensure it can be trusted to give an accurately measured gap every time. And that matters, because you might trust any old yardstick to measure and cut a fence post, but not to make a precision measurement when it comes to an important weld in the medical, food, nuclear, or energy industry.

While most people rarely give them a second thought, standards are vital to the safe and efficient operation of virtually every part of our infrastructure. ASME Standards are set in place to ensure the highest quality specifications are used for several different applications. These standards are set to generally accepted specifications and provide manufacturers and service providers an industry-approved benchmark for which to design and offer their products. ASME B31.1 prescribes minimum requirements for the design, materials, fabrication, erection, test, inspection, operation, and maintenance of piping systems typically found in electric power generating stations, industrial and institutional plants, geothermal heating systems, and central and district heating and cooling systems. It is globally recognized as the leader in providing consensus standards for the field of mechanical engineering. The 1/16th” gap for socket welds is accepted as an ASME standard because it is proven to limit cracked socket welds.

We ensure the accuracy of its SteelSpace and SoluGap products through its adherence to ASME Standards so that our customers can be confident the required gap is maintained to produce a quality weld every time an Aquasol product is used. This way when you perform your next socket weld using one of Aquasols’ products you can eliminate the need for scribing and measuring the 1/16th″ measurement on the pipe. This is the simplest way to ensure quality control measures are met and guarantee the pipe maintains a lasting weld.

SoluGap® is widely trusted across many industries given that they are uncomplicated to install and the most cost-effective way to maintain quality control for socket weld gaps.  SoluGap is used in the following industries:

Food processing, Pharmaceutical, Nuclear, and aeronautical, Nuclear and power plants, Petrochemical plants and refineries, Industrial hydraulics, Water heaters and boilers, Railroad air brake, Shipbuilding, and more.

Watch how Aquasol Water Soluble Paper and Tape Work?

Buy Water soluble socket welding spacer ring / SoluGap® for welding :


The Aquasol Corporation is a leading manufacturer of water-soluble and other cutting edge purging technologies for the welding industry.

Supertech Services Pvt. Ltd. exclusively represents Aquasol products all across India.

Supertech Services has successfully outgrown to become one of the most talked-about solution providers for welding products and services in the country over three impressive decades.

With long-standing industrial experience, prompt service, and a client-centric business approach, we have successfully grown to become
“Complete Welding Solution Provider.”

We engage in:

  • Distribution and Services of Welding Equipment, Accessories
  • Distribution and Sales of Maintenance-Repair-Overhaul products
  • Contract Services and Leasing of Welding Systems

Brief of brands offered by Supertech Services Pvt. Ltd. –

(Other Aquasol products):

  1. Water Soluble Paper:  Water Soluble Paper or Purging Paper is manufactured by Aquasol. It is an advanced paper technology that can dissolve quickly in water or biodegrade more slowly in a moist environment.
  2. Oxygen Monitor: Accurately measures the concentration of oxygen in purged tubes/ pipes up to 100ppm resolution. Handheld, Rechargeable, Self Calibrating, Data Logging facility, Audio Visual Alarm.
  3. EZ Purge: Pre-formed, self-adhesive water-soluble purge dams. Completely ready-to-use as per specific pipe diameters increases productivity. 
  4. I Purge X: Modular Inflatable Bladder System for Purging. Expandable & Extendable; One system for multiple pipe sizes.

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