Volume Compensator Bellows

Overview

With changes in pressure or temperature, metal bellows can be used to compensate for the volumetric changes of the liquid or gas through expansion and contraction. Whether a liquid is heated or a cryogenic tank is being filled, edge welded bellows can bridge the gap between thermal or pressure differentials to ensure that the system remains operational. BellowsTech can integrate custom machined components or standard threads and fittings. For outdoor or industrial environments, BellowsTech will incorporate a housing for the bellows for protection.

Edge welded bellows technology can be pressurized internally and externally. For example, in sub-sea vehicles, bellows can be combined with sensors to compensate for the differential pressure of the sea water and hydraulic fluid.

Edge welded bellows can be manufactured in miniature sizes and offer a high stroke length. Light-weight materials can be used to minimize overall system weight.

Let BellowsTech know the pressures expected to be measured, and our engineering staff can assist with a designed to your specifications. BellowsTech can also offer liquid filling services to compensate for external pressures.

With a variety of materials, sizes and configurations, BellowsTech edge welded bellows can be designed to meet your requirements.

Specifications - Volume Compensators – PDF
Common Materials	316L SS, AM 350, Titanium
Thickness	0.002″ and up every 0.001″
Standard Leak Rate	<1×10^-9 std CC He/sec
Size Ranges
Outside Diameter	0.358″ (9.0932mm) to 26″ (660mm)*
Inside Diameter	0.15″ (3.8mm) to 25.5″ (648mm)*
Shapes	Round standard. Non-Round Available; Contact Factory.
Length	Up to 96 inches (244 cm)
*For other dimensional requirements, contact the factory

Edge Welded Metal Bellows Diaphragm Specifications

Use the following table as a guide for configuring your metal bellows. BellowsTech currently offers over 80 standard sizes. The list can be sorted by each column, searched through the search box at the top-right and expanded by increasing the number of visible entries. For custom sizes, contact us and our design engineers will work with you to find the best solution.

Diaphragm # Outside
Diameter
(OD) Inside
Diameter
(ID) Mean effective
pressure area
MEA (inches^2) Radial Span
(inches)

0036A 0.358 0.200 0.0611 0.079

0040A 0.396 0.2 0.0697 0.098

0048A 0.477 0.198 0.0895 0.1395

0050A 0.496 0.2 0.0951 0.148

0060A 0.595 0.26 0.1435 0.1675

0067A 0.67 0.394 0.2223 0.138

0075A 0.75 0.26 0.2003 0.245

0082A 0.821 0.548 0.3680 0.1365

0083A 0.827 0.575 0.3859 0.126

0084A 0.838 0.5 0.3515 0.169

0089A 0.892 0.592 0.4324 0.15

0102A 1.022 0.683 0.5708 0.1695

0103A 1.03 0.54 0.4840 0.245

0103B 1.03 0.54 0.4840 0.245

0103C 1.03 0.54 0.4840 0.245

0103D 1.03 0.55 0.4902 0.24

0108A 1.08 0.86 0.7390 0.11

0117A 1.17 0.75 0.7238 0.21

0118A 1.181 0.886 0.8389 0.1475

0124A 1.24 0.66 0.7088 0.29

0133A 1.33 1.015 1.0797 0.1575

0136A 1.355 0.54 0.7051 0.4075

0136B 1.362 1.012 1.1066 0.175

0144A 1.437 0.937 1.1066 0.25

0150A 1.5 1 1.2272 0.25

0151A 1.511 1.186 1.4282 0.1625

0156A 1.56 0.865 1.1547 0.3475

0163A 1.625 0.75 1.1075 0.4375

0163B 1.625 0.937 1.2888 0.344

0165A 1.65 1.24 1.6399 0.205

0174A 1.738 1.363 1.8881 0.1875

0175A 1.75 0.75 1.2272 0.5

0175B 1.75 1 1.4849 0.375

0176A 1.759 1.305 1.8433 0.227

0188A 1.875 0.975 1.5948 0.45

0189A 1.89 1.39 2.1124 0.25

0190A 1.9 1.5 2.2698 0.2

0193A 1.925 1.2 1.9175 0.3625

0195A 1.950 1.557 2.4149 0.1965

0200A 2 1.25 2.0739 0.375

0219A 2.190 1.690 2.9559 0.250

0224A 2.244 1.625 2.9392 0.3095

0225A 2.25 1.5 2.7612 0.375

0244B 2.437 1.937 3.7565 0.25

0245A 2.45 1.65 3.3006 0.4

0260A 2.6 1.78 3.7668 0.41

0260B 2.595 2.185 4.4863 0.205

0263A 2.625 2.125 4.4301 0.25

0265A 2.65 2 4.2456 0.325

0270A 2.7 1.95 4.2456 0.375

0275A 2.75 2.125 4.6664 0.3125

0275B 2.75 2.125 4.6664 0.3125

0275C 2.75 1.65 3.8013 0.55

0276A 2.76 1.965 4.3836 0.3975

0300A 3 2 4.9087 0.5

0300B 3 2 4.9087 0.5

0317B 3.165 2.585 6.4918 0.29

0331A 3.305 2.81 7.3421 0.2475

0331C 3.305 2.81 7.3421 0.2475

0350A 3.5 2.75 7.6699 0.375

0368A 3.675 2.53 7.5599 0.5725

0403A 4.034 3.085 9.9510 0.4745

0403B 4.034 3.085 9.9510 0.4745

0417A 4.17 3.7 12.1613 0.235

0420A 4.2 3.4 11.3411 0.4

0472A 4.72 3.72 13.9867 0.5

0475A 4.75 3.03 11.8847 0.86

0490A 4.9 3.53 13.9536 0.685

0490B 4.903 4.323 16.7131 0.29

0497A 4.97 4 15.7985 0.485

0508A 5.077 4.13 16.6443 0.4735

0545A 5.45 4.95 21.2372 0.25

0572A 5.722 4.472 20.4042 0.625

0588A 5.88 5.12 23.7583 0.38

0675A 6.75 5.542 29.6671 0.604

0728A 7.283 5.906 34.1549 0.6885

0775A 7.75 6.85 41.8539 0.45

0785A 7.85 6.25 39.0363 0.8

0787A 7.874 6.693 41.6649 0.5905

0808A 8.083 7.15 45.5618 0.4665

0925A 9.25 8 58.4263 0.625

0950A 9.5 8.5 63.6173 0.5

1099A 10.99 10.12 87.4997 0.435

1100A 11 9.5 82.5159 0.75

1110A 11.102 9.102 80.1502 1

1200A 12 10 95.0332 1

2221A 22.205 19.921 348.4419 1.142

Typical Industries	Benefits
Cryogenics	High Stoke Capability
Test	Extreme Temperatures
Aerospace	Media Compatibility

Outlines

Find Bellows by Type

Actuators

Bellows Accumulators

Bellows Mechanical Seals

Metal Expansion Joints

Volume Compensator Bellows
Lifter Bellows

Diesel Exhaust Bellows

Vibration Dampener

Mechanical Feedthroughs

Find Bellows by Material

Titanium Bellows
Inconel Bellows
Hastelloy Bellows
Stainless Steel Bellows
Submit Your Request

Home	Edge Welded Bellows	Metal Bellows Products	Applications	Custom Bellows	Company Profile	Contact Us
	bellowstech.de @PMGBellows	Standard Diaphragm Sizes Welded Bellows Design Form	Aerospace Bellows Cryogenic Bellows Medical Bellows Oil & Gas Bellows UHV Semiconductor Bellows Test Stand Bellows		News/Events Privacy Policy Suppliers	BellowsTech, LLC 1289 N. US Highway 1, Suite 1 Ormond Beach, FL 32174 USA Phone: (386) 615-7530 A Servometer Company ©

Overview

Specifications - Volume Compensators – PDF

Edge Welded Metal Bellows Diaphragm Specifications

Typical Industries

Benefits

Outlines

Find Bellows by Type

Find Bellows by Material

Home

Edge Welded Bellows

Metal Bellows Products

Applications

Custom Bellows

Company Profile

Contact Us