Bellows Specification Form

Specification Form

Contact Information

Company Name *

Client Name *

Best Contact Method

Address

City

State/Province

Zip/Postal

Country

Phone

Fax

Email *

Quantity Expectations

Present

Future

Step 1: Information

Closest part number(s) from our Stainless Steel section of the Stock Bellows Data List

See our online Stock Bellows Data List. The Stainless Steel selection represents our basic capabilities in which most formable materials can duplicated. Indicate which part number(s) from the “Stock List” that are closest to your requirements. See our Metal Bellows Design Guide for an explanation of Stock List column headings. Notes: The convolution inside diameter and neck diameter are based on tooling. Convolution outside diameter can be adjusted. Decreasing the OD will increase the Spring Rate and decrease the maximum stroke.

Bellows Application

Describe use of Bellows

Assembly Method

Step 2: Function

Method of Travel

Mechanical

Pressure

Thermal

Direction of Travel

Compression

Extension

Angular

Bend Radius

Parallel Misalignment

Volume of Displacement

Combination of Travel

Maximum Operating Travel

Average Operating Travel

Can some set in length be tolerated?

Notes

Pressure

Internal Operating

Internal Proof

Internal Burst

External Operating

External Proof

External Burst

Is O.D. or I.D. guidance possible?

Notes

Environmental

Operating Temperature

Maximum Temperature

Minimum Temperature

Substance in contact with Bellows

Notes

Cycles

Minimum Cycle Life at maximum operating travel

Minimum Cycle Life at average operating travel

Cycle Frequency

Other

Spring Rate (maximum)

Spring Rate (minimum)

Effective Area (maximum)

Effective Area (minimum)

Material Type and Options

Comments

Step 3: Dimensions

Convolution Outside Diameter (maximum)

Convolution Outside Diameter (minimum)

Convolution Inside Diameter (maximum)

Convolution Inside Diameter (minimum)

Convolution Free Length (maximum)

Convolution Free Length (minimum)

Neck Outside Diameter (maximum)

Neck Outside Diameter (minimum)

Neck Inside Diameter (maximum)

Neck Inside Diameter (minimum)

Neck Length (maximum)

Neck Length (minimum)

Wall Thickness (maximum)

Wall Thickness (minimum)

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Select a bellows from the Stock Bellows Data List or complete the Bellows Specification Form. For assistance contact us at (805) 644-1474.