AIGI Environmental Inc.
AIGI H-13 Flange Disc Springs
AIGI H-13 Flange Disc Springs are preload disc springs for bolted joints in standard, non-corrosive environments. Made from H-13 steel, they are built for high-temperature service indoors or outdoors, keeping flange bolts loaded as joints heat up and cool down.
Product Benefits
- High-temperature capability: H-13 steel holds its spring properties well into hot service, where ordinary washers lose their grip.
- Constant bolt load: The spring stores energy and releases it as the gasket relaxes or the bolts creep, keeping the joint tight.
- Protects the gasket: The correct spring load avoids both under-loading, which leaks, and over-loading, which crushes the gasket.
- Ready to install: Supplied machined with a light film of oil, ready to fit on the bolt.
Where It's Used
- Valves: Bolted valve joints in hot service.
- Pipe flanges: Flanged pipework where thermal cycling and vibration cause bolt load to drop.
- Heat exchangers: Bolted heat exchanger joints that see repeated heating and cooling.
Good to Know
- Standard environments: This version is intended for standard environments; for corrosive chemical service, choose the Nickel Plated H-13 Disc Springs.
- Fully magnetic: H-13 flange disc springs are fully magnetic.
- Special requirements: AIGI can advise on special materials or finishes beyond the standard range.
