V Bellows
Flexible PTFE Bellows for Low-Pressure Pipeline Systems
Made in Britain
Cost-Effective, Vibration-Absorbing Bellows for Misalignment & Expansion Control
Beldam Crossley’s Type V PTFE Bellows offer enhanced flexibility and economy for low-pressure applications. Produced by slicing the convolutions into the PTFE core, these bellows deliver superior vibration absorption and movement accommodation, making them ideal for pipe misalignment correction, low-pressure systems, and splash protection.
What Are V-Type Bellows?
V bellows differ from M bellows in the way they are produced: the convolutions are cut (not machined) into the PTFE core. This approach results in a thinner wall structure that enhances flexibility but is better suited to lower pressures.
Ideal for:
- Low-pressure pipelines
- Vibration damping
- Thermal expansion absorption
- Environmental protection for inline components
Key Benefits of V Bellows
- Greater flexibility per unit length
- Lightweight and compact for system space-saving
- Temperature range: -240°C to +200°C
- Resistant to aggressive chemicals and solvents
- Cost-effective for non-critical sealing environments
Also referred to as:
- Flexible PTFE bellows
- Low-pressure expansion joints
- Vibration compensators
Available Sizes
| Pipe Size (DN) | O/D (mm) | I/D (mm) | Max Length (mm) | Min Length (mm) | No. of Convolutions |
|---|---|---|---|---|---|
| 15 | 25 | 15 | 50 | 28 | 8 |
| 25 | 50 | 25 | 82 | 34 | 8 |
| 40 | 80 | 40 | 115 | 44 | 8 |
| 50 | 90 | 50 | 107 | 47 | 6 |
| 80 | 120 | 80 | 107 | 47 | 6 |
| 100 | 140 | 100 | 88 | 51 | 6 |
| 150 | 190 | 150 | 88 | 51 | 6 |
Customised sizes available up to 1-metre bore.
Additional Options
- Supplied with steel flanges (carbon or stainless)
- Optional limiting screws to prevent overstretching
- Compatible with composite assemblies and PTFE-lined systems
Why Specify Beldam Crossley V Bellows?
Made in the UK by one of the most trusted names in PTFE sealing systems
Over 50 years’ experience in custom bellows manufacturing
Designed to ISO 9001, AS9100, and ISO 14001 certified standards
Engineered to meet exact performance, flexibility, and longevity goals
Frequently Asked Questions
V Bellows are cut rather than machined, offering greater flexibility for a given length but with a lower pressure rating. They’re ideal for vibration absorption and misalignment correction.
While PTFE has excellent durability, the flexible nature and lower wall thickness of V Bellows means they are typically specified for permanent installation in low-pressure applications.
Yes. Like all our PTFE products, V Bellows operate in extreme temperatures from -240°C to +200°C without degradation
.
They can be supplied either as standalone components or pre-assembled with flange kits and limiting screws to protect against over-expansion in service.
Yes. PTFE’s non-stick and non-reactive properties make V Bellows ideal for sanitary process systems. Food-grade certification options are available on request.
As we manufacture in-house in the UK, lead times are short and flexible—contact our team with your required dimensions for a fast quote and turnaround.
