High-performance Hoses With Loose Flanges For Easy Installation And Corrosion Resistance
Flanged loose sleeve metal hoses provide flexible, corrosion-resistant solutions for industrial piping, with loose flanges for easy installation and vibration damping in harsh environments.
High-performance Hoses With Loose Flanges For Easy Installation And Corrosion Resistance
Flanged loose sleeve metal hoses provide flexible, corrosion-resistant solutions for industrial piping, with loose flanges for easy installation and vibration damping in harsh environments.
Flanged Loose Sleeve Metal Hoses are designed for flexible piping solutions, offering superior corrosion resistance and ease of installation in demanding industrial applications. These hoses, typically constructed from stainless steel (304, 316L, or 321), feature a loose flange design that allows the flange to move freely on the pipe end, facilitating alignment and reducing stress during installation. Ideal for chemical processing, water treatment, oil and gas, and HVAC systems, these hoses provide vibration damping and accommodate thermal expansion and misalignment.
Available in sizes from 2” to 14” (DN50 to DN350), flanged loose sleeve metal hoses operate at pressures up to 150 bar (2175 PSI) and temperatures from -200°C to 500°C, depending on the material and configuration. Compliant with standards like DIN, ANSI, JIS, and BS, these hoses consist of a corrugated or annular stainless steel bellows, a braided mesh sleeve (typically SS304 or SS316), and loose flanges (carbon steel or stainless steel) for sealing. The loose flange design, often paired with a steel ring or collar, ensures the flange does not contact the medium, enhancing durability in corrosive environments.
The corrosion resistance of stainless steel makes these hoses suitable for handling aggressive media like acids, alkalis, steam, and hydrocarbons, outperforming rubber hoses in industrial hoses applications. The braided mesh enhances pressure resistance and protects against abrasion, while the loose flange allows for easy connection to existing piping systems without twisting the hose, preventing early failure. These hoses are ideal for applications requiring flexibility, such as pump connectors, vibration isolators, or stress relief in piping systems handling potable water, gases, or oils.
Compared to fixed flange or PTFE-lined hoses, flanged loose sleeve metal hoses offer greater installation flexibility and are less prone to stress cracking, though they may have lower pressure ratings than double-braided metallic hoses. They undergo rigorous testing, including hydrostatic, pneumatic, and fatigue tests, to ensure compliance with industry standards. Optional features like internal liners for high-velocity flows or external coatings (e.g., 3LPE) enhance abrasion resistance and longevity. Custom lengths and flange standards are available to meet specific project requirements.
Flanged loose sleeve metal hoses address challenges like pipeline corrosion, vibration, and misalignment in industrial systems. Their robust construction and flexible design make them a reliable choice for engineers seeking durable flexible piping solutions for extreme environments, ensuring safety, efficiency, and ease of maintenance in applications like refineries, water treatment plants, and chemical processing facilities.
| Material | Main Components (%) |
|---|---|
| SS304 (Hose/Braid) | Fe, Cr (18-20%), Ni (8-10.5%), C (≤0.08) |
| SS316L (Hose/Braid) | Fe, Cr (16-18%), Ni (10-14%), Mo (2-3%), C (≤0.03) |
| SS321 (Hose/Braid) | Fe, Cr (17-19%), Ni (9-12%), Ti (≤0.8), C (≤0.08) |
| Carbon Steel (Flange) | Fe, C (0.25-0.35%), Mn (0.6-1.4%) |
| Property | Value |
|---|---|
| Tensile Strength (MPa) | 515-690 (SS304/316L/321) |
| Yield Strength (MPa) | 205-275 |
| Pressure Rating (PSI) | Up to 2175 |
| Temperature Range (°C) | -200 to 500 |
| Elongation (%) | 40-50 |
| Grade | C (% max) | Mn (% max) | Si (% max) | P (% max) | S (% max) | Cr (%) | Ni (%) | Mo (%) | N (% max) |
|---|---|---|---|---|---|---|---|---|---|
| 304 | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-11.0 | - | 0.10 |
| 304L | 0.03 | 2.00 | 1.00 | 0.045 | 0.030 | 18.0-20.0 | 8.0-12.0 | - | 0.10 |
| 316 | 0.08 | 2.00 | 1.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 0.10 |
| 316L | 0.03 | 2.00 | 1.00 | 0.045 | 0.030 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 0.10 |
The low carbon content in 304L and 316L enhances weldability, while molybdenum in 316 and 316L improves resistance to pitting and crevice corrosion, making Stainless steel flanged metal hose ideal for harsh environments.
| Grade | Tensile Strength (min, MPa) | Yield Strength (min, MPa) | Elongation (min, %) | Hardness (max, HB) | Hardness (max, HRB) |
|---|---|---|---|---|---|
| 304 | 515 | 205 | 40 | 201 | 92 |
| 304L | 485 | 170 | 40 | 201 | 92 |
| 316 | 515 | 205 | 40 | 217 | 95 |
| 316L | 485 | 170 | 40 | 217 | 95 |
These mechanical properties make Stainless steel flanged metal hose suitable for applications requiring high strength and corrosion resistance, such as architectural structures, marine environments, and chemical processing.
In order to solve the cumbersome and difficult to remember stainless steel grades, improve the practicability of the brand representation, and the contrast with the international standard grades, China has formulated the "Universal Code System for Steel and Alloy Grades", such as 06Cr19Ni10, corresponding to 304. Different grades of stainless steel have different ingredients, but they all have a national standard. The standards of each country are also different.
| No | China (GB) | Japan (JIS) | American | Korea (KS) | EU (BS EN) | India (IS) | Australia (AS) | Taiwan (CNS) | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Old | New (07.10) | SUS | ASTM | UNS | STS | EN | IS | AS | CNS | |
| Austenitic Stainless Steel | ||||||||||
| 1 | 1Cr17Mn6Ni5N | 12Cr17Mn6Ni5N | SUS201 | 201 | S20100 | STS201 | 1.4372 | 10Cr17Mn6Ni4N20 | 201-2 | 201 |
| 2 | 1Cr18Mn8Ni5N | 12Cr18Mn9Ni5N | SUS202 | 202 | S20200 | STS202 | 1.4373 | — | — | 202 |
| 3 | 1Cr17Ni7 | 12Cr17Ni7 | SUS301 | 301 | S30100 | STS301 | 1.4319 | 10Cr17Ni7 | 301 | 301 |
| 4 | 0Cr18Ni9 | 06Cr19Ni10 | SUS304 | 304 | S30400 | STS304 | 1.4301 | 07Cr18Ni9 | 304 | 304 |
| 5 | 00Cr19Ni10 | 022Cr19Ni10 | SUS304L | 304L | S30403 | STS304L | 1.4306 | 02Cr18Ni11 | 304L | 304L |
| 6 | 0Cr19Ni9N | 06Cr19Ni10N | SUS304N1 | 304N | S30451 | STS304N1 | 1.4315 | — | 304N1 | 304N1 |
| 7 | 0Cr19Ni10NbN | 06Cr19Ni9NbN | SUS304N2 | XM21 | S30452 | STS304N2 | — | — | 304N2 | 304N2 |
| 8 | 00Cr18Ni10N | 022Cr19Ni10N | SUS304LN | 304LN | S30453 | STS304LN | — | — | 304LN | 304LN |
| 9 | 1Cr18Ni12 | 10Cr18Ni12 | SUS305 | 305 | S30500 | STS305 | 1.4303 | — | 305 | 305 |
| 10 | 0Cr23Ni13 | 06Cr23Ni13 | SUS309S | 309S | S30908 | STS309S | 1.4833 | — | 309S | 309S |
| 11 | 0Cr25Ni20 | 06Cr25Ni20 | SUS310S | 310S | S31008 | STS310S | 1.4845 | — | 310S | 310S |
| 12 | 0Cr17Ni12Mo2 | 06Cr17Ni12Mo2 | SUS316 | 316 | S31600 | STS316 | 1.4401 | 04Cr17Ni12Mo2 | 316 | 316 |
| 13 | 0Cr18Ni12Mo3Ti | 06Cr17Ni12Mo2Ti | SUS316Ti | 316Ti | S31635 | — | 1.4571 | 04Cr17Ni12MoTi20 | 316Ti | 316Ti |
| 14 | 00Cr17Ni14Mo2 | 022Cr17Ni12Mo2 | SUS316L | 316L | S31603 | STS316L | 1.4404 | 02Cr17Ni12Mo2 | 316L | 316L |
| 15 | 0Cr17Ni12Mo2N | 06Cr17Ni12Mo2N | SUS316N | 316N | S31651 | STS316N | — | — | 316N | 316N |
| 16 | 00Cr17Ni13Mo2N | 022Cr17Ni13Mo2N | SUS316LN | 316LN | S31653 | STS316LN | 1.4429 | — | 316LN | 316LN |
| 17 | 0Cr18Ni12Mo2Cu2 | 06Cr18Ni12Mo2Cu2 | SUS316J1 | — | — | STS316J1 | — | — | 316J1 | 316J1 |
| 18 | 00Cr18Ni14Mo2Cu2 | 022Cr18Ni14Mo2Cu2 | SUS316J1L | — | — | STS316J1L | — | — | — | 316J1L |
| 19 | 0Cr19Ni13Mo3 | 06Cr19Ni13Mo3 | SUS317 | 317 | S31700 | STS317 | — | — | 317 | 317 |
| 20 | 00Cr19Ni13Mo3 | 022Cr19Ni13Mo3 | SUS317L | 317L | S31703 | STS317L | 1.4438 | — | 317L | 317L |
| 21 | 0Cr18Ni10Ti | 06Cr18Ni11Ti | SUS321 | 321 | S32100 | STS321 | 1.4541 | 04Cr18Ni10Ti20 | 321 | 321 |
| 22 | 0Cr18Ni11Nb | 06Cr18Ni11Nb | SUS347 | 347 | S34700 | STS347 | 1.4550 | 04Cr18Ni10Nb40 | 347 | 347 |
| Austenitic-Ferritic Stainless Steel (Duplex) | ||||||||||
| 23 | 0Cr26Ni5Mo2 | — | SUS329J1 | 329 | S32900 | STS329J1 | 1.4477 | — | 329J1 | 329J1 |
| 24 | 00Cr18Ni5Mo3Si2 | 022Cr19Ni5Mo3Si2N | SUS329J3L | — | S31803 | STS329J3L | 1.4462 | — | 329J3L | 329J3L |
| Ferritic Stainless Steel | ||||||||||
| 25 | 0Cr13Al | 06Cr13Al | SUS405 | 405 | S40500 | STS405 | 1.4002 | 04Cr13 | 405 | 405 |
| 26 | — | 022Cr11Ti | SUH409 | 409 | S40900 | STS409 | 1.4512 | — | 409L | 409L |
| 27 | 00Cr12 | 022Cr12 | SUS410L | — | — | STS410L | — | — | 410L | 410L |
| 28 | 1Cr17 | 10Cr17 | SUS430 | 430 | S43000 | STS430 | 1.4016 | 05Cr17 | 430 | 430 |
| 29 | 1Cr17Mo | 10Cr17Mo | SUS434 | 434 | S43400 | STS434 | 1.4113 | — | 434 | 434 |
| 30 | — | 022Cr18NbTi | — | — | S43940 | — | 1.4509 | — | 439 | 439 |
| 31 | 00Cr18Mo2 | 019Cr19Mo2NbTi | SUS444 | 444 | S44400 | STS444 | 1.4521 | — | 444 | 444 |
| Martensitic Stainless Steel | ||||||||||
| 32 | 1Cr12 | 12Cr12 | SUS403 | 403 | S40300 | STS403 | — | — | 403 | 403 |
| 33 | 1Cr13 | 12Cr13 | SUS410 | 410 | S41000 | STS410 | 1.4006 | 12Cr13 | 410 | 410 |
| 34 | 2Cr13 | 20Cr13 | SUS420J1 | 420 | S42000 | STS420J1 | 1.4021 | 20Cr13 | 420 | 420J1 |
| 35 | 3Cr13 | 30Cr13 | SUS420J2 | — | — | STS420J2 | 1.4028 | 30Cr13 | 420J2 | 420J2 |
| 36 | 7Cr17 | 68Cr17 | SUS440A | 440A | S44002 | STS440A | — | — | 440A | 440A |
Delivery
Inner plastic film packing, outer standard export wooden case packing.
Courier company transport, air freight and sea transport. It depends on your actual order details and quantity.
Stainless steel flanged metal hose are essential in industries requiring flexible, corrosion-resistant solutions for thermal expansion and vibration control in piping systems.
Absorbs thermal expansion in pipelines and refineries.
Handles corrosive media and vibrations.
Protects boilers and turbines from thermal stress.
Ensures leak-free operation in piping systems.
Manages cryogenic temperatures and vibrations.
Reduces noise and vibration in piping.
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