When you need to separate flanged joints, the RenQuip Viper-28 Series delivers great power in a surprisingly compact design. Capable of entering a 5mm access gap and producing a spreading force of 277kN (62,272 lbf) per tool, these hydraulic flange spreaders eliminate the need for traditional rigging equipment and dangerous workarounds.
Whether you're performing valve maintenance, gasket replacement, or pipeline decommissioning, the Viper-28 provides the control and force you need to get the job done right.
What Makes the RenQuip Viper-28 Series Powerful?
The latest flange spreading wedge from RenQuip packs serious power into a lightweight package. Each Viper-28 tool weighs just 11 lbs yet generates tremendous spreading force through its hydraulic design. The internal wedge system pushes the jaws apart with precision. This gives operators complete control over the spreading process.
The narrow jaw width of only 55mm means you can work on small to large flanges with a single tool. That versatility saves you from maintaining multiple specialized spreaders. The 5mm jaw tip depth lets you access tight spaces where bulkier tools simply won't fit.
Highlights of the Viper-28 Series
Key features that set the Viper-28 apart:
- Exceptional force-to-weight ratio – 277kN spreading force from a tool that weighs only 5kg.
- Minimal access requirements – 5mm access gap gets you into tight spots.
- Quick maintenance – Single pin assembly and disassembly system.
- Friction-reducing bearings – Smooth operation and extended tool life.
- Spreading distance up to 124mm – Using stepped blocks included in kits.
- 100% load tested – Every tool verified before it reaches you.
Choose Your Viper-28 Configuration
ALLTORC offers four configurations of the Viper-28 to match your requirements.
VIPER-28P: Maximum Portability with Integral Pump
The VIPER-28P is the flange spreading wedge with an integral pump built right in. Weighing just 16.5 lbs, this self-contained unit eliminates the need for external pumps and hoses. Perfect for remote locations, abseiling work, or tight-access areas with limited setup space. The kit includes stepped blocks, safety blocks, a safety lanyard, and a carrying case.
VIPER-28K: Single Tool Kit
Need just the spreading wedge? The VIPER-28K gives you the tool, stepped blocks, safety blocks, and a carrying case. Use it with your existing hydraulic pump and hose. This option works well when you already have compatible pumping equipment or need multiple tools running from a central pump.
VIPER-28H: Complete Single Tool Package
The VIPER-28H provides everything required to operate one tool. You get the spreading wedge, PH300S sealed hydraulic hand pump with single port, hydraulic hose with couplers, stepped blocks, safety blocks, safety lanyard, and carrying case. This complete kit lets you start work immediately.
VIPER-28M: Twin Tool System for Controlled Spreading
For proper flange spreading, we recommend using at least two tools. The VIPER-28M twin tool kit delivers exactly that. Two spreading wedges, a PH580T twin-port hydraulic hand pump, two hydraulic hoses, stepped blocks for both tools, safety equipment, and a single carrying case. One operator can control both tools independently or simultaneously to maintain parallel flange separation.
Access relevant product sheets here:
- Viper-28K
- Viper-28P
- Viper-28H
- Viper-28M
Why Do Professionals Choose This Hydraulic Tool?
The Viper-28 delivers a controlled spreading force that helps flanges open evenly and safely. This controlled movement reduces the risk of gasket pinching and flange face damage, while the included stepped blocks maintain secure separation throughout the job.
Built for industrial maintenance, the Viper-28 eliminates unsafe workarounds and reduces operator strain. Its high-pressure hydraulic system generates the required force without external power sources or bulky equipment, making it a practical choice for job sites.
Industries That Benefit from the Viper-28 Series
These tools are trusted across a wide range of applications, including:
- Oil and gas pipeline maintenance
- Power generation facility turnarounds
- Aerospace manufacturing and assembly
- Heavy equipment maintenance
- Mining operations
- Chemical processing plants
Get the Right Flange Spreading Solution
Choosing the right Viper-28 configuration depends on your application, access requirements, and existing equipment. With over 35 years of experience supporting industrial operations, ALLTORC's torque and tension specialists provide practical, application-specific guidance to ensure you select the right kit and setup from the start.
The Viper-28 Series combines power, portability, and precision for serious industrial work. ALLTORC keeps tools available locally to reduce lead times and downtime, with rental, sales, repair and ISO-accredited calibration services under one roof.
Reach Out to Our Team
Contact us to discuss your flange spreading requirements and find the Viper-28 configuration that fits your operation – backed by expert support and fast local availability.
Viper-28 Series FAQs
How much force does the Viper-28 produce?
Each Viper-28 tool generates 277kN (62,272 lbf) of spreading force. When using two tools together, you achieve greater force while maintaining controlled, parallel separation of the flange joint.
What's the difference between the VIPER-28P and other models?
The VIPER-28P features a spreading wedge with an integral pump built into the tool itself. This eliminates the need for separate hoses and external pumps, making it the most compact and portable option for field work.
Why should I use two Viper-28 tools instead of one?
Using multiple tools allows you to control the opening and maintain a parallel gap between flanges. This prevents the tool from slipping, protects the gasket, and avoids damaging flange faces during the spreading process.