Overview
The Perflex SF1000 expansion joint is a 6-inch (150 mm) non-metallic rubber bellows assembly from Holz, engineered for industrial piping systems requiring flexible connections. The unit features durable EPDM rubber construction with Class 150 lb flanged ends, making it suitable for a wide range of pneumatic, hydraulic, and plumbing applications. This bellows design compensates for thermal expansion, pressure fluctuations, and mechanical vibration while reducing noise and stress on connected equipment.
Key Features
- EPDM Rubber Construction: Excellent resistance to oils, temperature variations, and environmental degradation.
- Class 150 lb Flanged Design: Secure, bolted connection compatible with standard piping flanges.
- Multi-directional Movement: Accommodates axial compression, axial extension, lateral deflection, and angular rotation.
- Vibration & Noise Damping: Isolates system vibration and reduces pressure spike noise transmission.
- Non-Metallic Construction: Lightweight, corrosion-resistant, and suitable for corrosive environments.
- 6-inch (DN150) Size: Standard industrial pipe size for medium-flow applications.
Technical Specifications
- Nominal Size: 6 inches (DN150)
- Material: EPDM rubber bellows
- Flange Rating: Class 150 lb
- Flange Type: Flanged (RF – Raised Face)
- Bellows Configuration: Single sphere or single arch
- Pressure Rating: Up to 225 psig typical (verify exact pressure rating with order specifications)
- Temperature Range: –20°C to +80°C (–4°F to +176°F) typical for EPDM service
- Axial Extension: Approximately 1/2 inch
- Axial Compression: Approximately 3/4 inch
- Lateral Deflection: ±1/2 inch typical
- Angular Deflection: Approximately 9 degrees
- Flange OD: 11 inches
- Bolt Circle Diameter: 9.5 inches
- Bolt Holes: 8 holes (0.875 inch diameter)
Typical Applications
The Perflex SF1000 is widely used in:
- HVAC and chilled water piping systems requiring vibration isolation
- Industrial pump discharge lines and high-pressure circuits
- Pneumatic system connections subject to temperature cycling
- Fuel and coolant line flexible connections
- Blower and compressor discharge lines
- Wastewater and municipal water treatment facilities
- OEM equipment manufacturing requiring noise and vibration control
Compatibility & Replacements
Compatible With
- ANSI/ASME B16.5 Class 150 lb flanged piping systems
- DN150 (6-inch) nominal bore piping
- Industrial hydraulic and pneumatic circuits rated for EPDM elastomers
- Systems operating between –20°C and +80°C
- Standard bolt-together flange assemblies (8 x 0.75″ bolts typical)
Replaces / Drop-In Replacement For
Verify exact replacement compatibility with your system integrator or equipment documentation. The Perflex SF1000 is directly interchangeable with other 6-inch Class 150 lb EPDM expansion joints from leading manufacturers including Proco, Garlock, Flexicraft, and similar industrial brands using identical flange geometry.
Works With
- ASME B16.5 flanged pipe systems
- Standard industrial bolt patterns (8 holes on 9.5″ bolt circle)
- Metric piping (DN150 designation)
- Pneumatic and hydraulic system controllers and manifolds
- Temperature monitoring and pressure relief systems
