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VELVAC

Velvac is a manufacturer of components for commercial vehicles, with a product line that includes air brake gladhands, mirrors, and fittings. The company's gladhands are used in tractor-trailer air systems to connect service and emergency lines. Velvac gladhands are available in aluminum bodies with port sizes of 3/8" and 1/2", thread sizes of 3/8"-18 and 1/2"-14, and angle configurations of 37°, 45°, and 90°. Maximum working pressure is 120 psi at 70°F. Some models include an integrated shut-off valve. Color coding is used to distinguish circuits: red for emergency and blue for service. Universal gladhands are also offered. In addition to gladhands, Velvac supplies heat shrink tubing kits, such as an 86-piece assortment with a 2:1 shrink ratio and sizes from 3/16" to 1". These components are used in heavy-duty truck, trailer, and bus air systems, as well as in industrial pneumatic circuits where quick-connect couplings are required. 3G Electric stocks Velvac gladhands, fittings, and related accessories. The product range includes emergency gladhands in red with various port sizes and angles, service gladhands in blue, universal gladhands in black, and heat shrink tubing kits. 3G Electric provides global shipping and technical support for Velvac products. The gladhands are constructed from aluminum for corrosion resistance and weight reduction. Thread sizes and port configurations are designed to meet common commercial vehicle standards. The 37° and 45° flare angles are suitable for SAE flare fittings, while the 90° models allow for right-angle connections in tight spaces. The shut-off feature on certain models allows the air line to be disconnected without losing pressure in the remaining circuit. Heat shrink tubing kits are used for electrical insulation and protection of wire splices and connections. The 2:1 shrink ratio provides a tight seal over irregular shapes. The assortment includes multiple sizes to accommodate different wire gauges. 3G Electric supplies these products to maintenance facilities, fleet operators, and industrial plants. The company maintains inventory of Velvac gladhands and accessories to support ongoing maintenance and repair operations. Technical specifications, including thread sizes, port sizes, and pressure ratings, are available for each product to assist with selection. 3G Electric can provide quotes and lead times for Velvac products. The gladhands are packaged in individual units or in multi-packs, such as 10-packs, depending on the model. This allows for flexibility in ordering for both small repairs and larger projects. Velvac products are known for their use in commercial vehicle air brake systems, and 3G Electric ensures that these components are available to customers worldwide.

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About VELVAC

Velvac is a manufacturer of components for commercial vehicles, with a product line that includes air brake gladhands, mirrors, and fittings. The company's gladhands are used in tractor-trailer air systems to connect service and emergency lines. Velvac gladhands are available in aluminum bodies with port sizes of 3/8" and 1/2", thread sizes of 3/8"-18 and 1/2"-14, and angle configurations of 37°, 45°, and 90°. Maximum working pressure is 120 psi at 70°F. Some models include an integrated shut-off valve. Color coding is used to distinguish circuits: red for emergency and blue for service. Universal gladhands are also offered. In addition to gladhands, Velvac supplies heat shrink tubing kits, such as an 86-piece assortment with a 2:1 shrink ratio and sizes from 3/16" to 1". These components are used in heavy-duty truck, trailer, and bus air systems, as well as in industrial pneumatic circuits where quick-connect couplings are required. 3G Electric stocks Velvac gladhands, fittings, and related accessories. The product range includes emergency gladhands in red with various port sizes and angles, service gladhands in blue, universal gladhands in black, and heat shrink tubing kits. 3G Electric provides global shipping and technical support for Velvac products. The gladhands are constructed from aluminum for corrosion resistance and weight reduction. Thread sizes and port configurations are designed to meet common commercial vehicle standards. The 37° and 45° flare angles are suitable for SAE flare fittings, while the 90° models allow for right-angle connections in tight spaces. The shut-off feature on certain models allows the air line to be disconnected without losing pressure in the remaining circuit. Heat shrink tubing kits are used for electrical insulation and protection of wire splices and connections. The 2:1 shrink ratio provides a tight seal over irregular shapes. The assortment includes multiple sizes to accommodate different wire gauges. 3G Electric supplies these products to maintenance facilities, fleet operators, and industrial plants. The company maintains inventory of Velvac gladhands and accessories to support ongoing maintenance and repair operations. Technical specifications, including thread sizes, port sizes, and pressure ratings, are available for each product to assist with selection. 3G Electric can provide quotes and lead times for Velvac products. The gladhands are packaged in individual units or in multi-packs, such as 10-packs, depending on the model. This allows for flexibility in ordering for both small repairs and larger projects. Velvac products are known for their use in commercial vehicle air brake systems, and 3G Electric ensures that these components are available to customers worldwide.

Common Applications

  • Heavy-duty truck and trailer air brake systems — Velvac emergency gladhands (red) with 3/8"-18 or 1/2"-14 threads and 37°, 45°, or 90° angles.
  • Commercial vehicle service line connections — Velvac service gladhands (blue) with 1/2"-14 thread and 90° angle, sold in 10-packs.
  • Fleet maintenance and repair — Velvac universal gladhands (black) with 1/2"-14 FPT threads and 90° angle, 10-pack.
  • Air brake system upgrades with shut-off capability — Velvac emergency gladhand with integrated shut-off valve, 3/8"-18 thread, 90° angle.
  • Electrical wire insulation and protection — Velvac 86-piece heat shrink tubing kit with 2:1 shrink ratio and multiple sizes.
  • Industrial pneumatic quick-connect applications — Velvac gladhands with 120 psi rating and aluminum bodies for compressed air lines.

Frequently asked questions

Common questions about VELVAC from 3G Electric.

What is the maximum working pressure for Velvac gladhands?

Velvac gladhands are rated for a maximum working pressure of 120 psi at 70°F. This rating applies to the aluminum gladhand models listed, including emergency, service, and universal types. The pressure rating is consistent across the different angle configurations and port sizes. It is important to verify that the gladhand is suitable for the specific system pressure and temperature conditions. The 120 psi rating is typical for commercial vehicle air brake systems. For applications requiring higher pressures, consult the manufacturer's specifications. 3G Electric provides these gladhands with the stated pressure rating.

What is the difference between Velvac emergency and service gladhands?

Velvac emergency gladhands are color-coded red and are used in the emergency supply circuit of a tractor-trailer air brake system. Service gladhands are color-coded blue and are used in the service line, which controls the brakes. The color coding helps prevent cross-connection. Both types are available in aluminum with various port sizes and angles. Emergency gladhands may include a shut-off valve on some models, while service gladhands typically do not. The thread sizes and port configurations are similar, but the intended circuit differs. Using the correct gladhand for each circuit is essential for proper brake function.

Are Velvac gladhands available with shut-off valves?

Yes, some Velvac gladhand models include an integrated shut-off valve. For example, the emergency gladhand with 3/8"-18 thread and 90° angle (MPN 035095) has a shut-off feature. This allows the air line to be disconnected without releasing pressure from the rest of the system. Other models, such as the 37° and 45° emergency gladhands and the service gladhands, do not include a shut-off valve. The presence of a shut-off valve is indicated in the product specifications. When ordering, verify whether the shut-off feature is required for your application.

What sizes of heat shrink tubing are in the Velvac 86-piece kit?

The Velvac 86-piece heat shrink tubing kit includes black tubing in sizes 3/16", 1/4", 3/8", 1/2", 3/4", and 1", each 6 inches long. It also includes 12 red pieces of 3/8" tubing. The tubing has a 2:1 shrink ratio, meaning it shrinks to half its original diameter when heated. This assortment covers a range of wire and cable sizes for electrical insulation and protection. The kit is suitable for maintenance and repair tasks where multiple sizes are needed. The red pieces can be used for color coding or identification.

What thread sizes are available for Velvac gladhands?

Velvac gladhands are available with two thread sizes: 3/8"-18 and 1/2"-14. The 3/8"-18 thread is found on models with a 3/8" port size, such as the 37° and 45° emergency gladhands and the 90° emergency gladhand with shut-off. The 1/2"-14 thread is used on models with a 1/2" port size, including the 90° emergency gladhand, universal gladhand, and service gladhand. The thread size must match the mating fitting on the vehicle or equipment. Both thread sizes are common in commercial vehicle air systems. Verify the thread size before ordering.

Can Velvac gladhands be used in industrial pneumatic systems?

Velvac gladhands are primarily designed for commercial vehicle air brake systems, but they can be used in industrial pneumatic systems where a quick-connect coupling is needed. The aluminum construction and 120 psi rating make them suitable for many compressed air applications. However, the color coding and circuit designations (red for emergency, blue for service) are specific to vehicle air brake systems. In industrial settings, the gladhands can serve as general-purpose quick couplings. Ensure that the pressure and temperature ratings are compatible with the system. The 37°, 45°, and 90° angles allow for flexible installation.