The Renquip Viper-28 offers state-of-the-art hydraulic flange spreading technology. This powerful tool delivers 277kN (62,272 lbf) of spreading force in a compact 11-pound package. Whether you're working on pipeline maintenance, power generation equipment, or industrial processing systems, the Viper-28 provides the precision and power needed for safe, efficient flange joint separation.
Viper-28 Technical Specifications
The Renquip Viper-28 sets new standards for flange spreading performance:
These specs deliver exceptional performance for medium to large flange joints. The narrow jaw design also allows the tool to work on smaller flanges where traditional spreading equipment won't fit.
What Makes the Viper-28 Design Revolutionary?
RenQuip engineered the Viper-28 to address the real challenges of flange spreading in the field. Its ultra-thin 5 mm jaw tip reaches tight gaps that many spreaders can't, allowing you to work on flanges with minimal existing separation.
Friction-reducing jaw bearings keep your work smooth and efficient. By minimising internal resistance, more hydraulic force transfers directly into spreading the flange, delivering stronger performance and faster results.
A single-pin assembly simplifies maintenance and transport. With no complex disassembly or loose fasteners to manage, the design reduces downtime and limits wear points over the tool's service life.
Viper-28 Model Options
The Viper-28 series includes four configurations to match your operational needs:
- VIPER-28K – The base kit includes the spreading wedge, stepped blocks, safety blocks, and carry case. You'll need to supply your own hydraulic pump and hose.
- VIPER-28P – Features an integral pump built directly into the tool. At 16.5 pounds total, this self-contained unit is perfect for rope access work, tight spaces, or remote locations where hauling a separate pump isn't practical.
- VIPER-28H – Comes complete with a PH300S sealed hydraulic hand pump, hose, and all accessories. This ready-to-work kit includes everything you need for immediate deployment.
- VIPER-28M – The professional twin-tool kit includes two Viper-28 spreaders and a PH580T twin-port pump. This configuration allows single-operator control of both tools for parallel flange spreading. This is the recommended approach for most flange work.
Access relevant product sheets here:
- Viper-28K
- Viper-28P
- Viper-28H
- Viper-28M
Key Applications for the Renquip Viper-28
Flange spreading plays a critical role in maintenance, testing, installation, and decommissioning. Designed for controlled force in challenging conditions, the Viper-28 delivers reliable performance across various industrial applications.
- Pipeline maintenance – Safely separate pipe flanges for gasket replacement, inspection, or valve servicing without the need for complex rigging or improvised tools.
- Power generation – Gain controlled access to turbine casings, heat exchangers, and pressure vessels during outages and scheduled maintenance.
- Petrochemical processing – Support routine and shutdown maintenance on process equipment while minimizing downtime and reducing risk to flange faces.
- Offshore operations – The lightweight design, combined with the optional integral pump on the Viper-28P, makes it well-suited to platform work where access and space are limited.
- Aerospace manufacturing – Apply precise spreading force to protect sensitive components during assembly, inspection, or maintenance tasks.
Which Viper-28 Configuration Should You Choose?
Your choice depends on your typical work environment and equipment availability:
- Already have hydraulic pumps and hoses? The VIPER-28K gives you the core tool at the lowest price point.
- Working in confined spaces or doing rope access? The VIPER-28P with its integral pump eliminates hoses and external equipment.
- Need a complete, ready-to-deploy solution? The VIPER-28H or VIPER-28M kits provide everything in one case.
Most industrial maintenance teams choose the VIPER-28M twin-tool kit. Having two tools with a twin-port pump in one package means you're always equipped for proper parallel spreading technique.
Viper-28 Support Backed by Proven Expertise
ALLTORC brings more than 35 years of experience supporting industrial maintenance teams across the western U.S. We back the Renquip Viper-28 with deep application knowledge, practical field support, and ISO-accredited calibration services to help you work safely and accurately.
With an extensive hydraulic tool inventory that we stock locally, ALLTORC reduces lead times and keeps downtime to a minimum. We support the Viper-28 through rental, sales, repair and calibration services under one roof, ensuring your tools stay reliable throughout their service life.
Contact us today to discuss your flange spreading requirements and get expert support for your Viper-28 applications.
Viper-28 FAQs
What size flanges can the Viper-28 handle?
The Viper-28 works on medium to large flange joints. The narrow 55mm jaw width and thin 5mm tip also allow it to work on smaller flanges where other spreaders won't fit.
Can I use just one Viper-28 tool?
While possible, we recommend using at least two tools to maintain parallel spreading. This prevents gasket damage and ensures safe, controlled flange separation.
What hydraulic pressure does the Viper-28 require?
The tool operates at a maximum hydraulic pressure of 10,000 psi (700 Bar) to achieve its full 277 kN spreading force.