Copper Ferrules, Copper Olives for Compression Fittings

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April 12, 2026

Copper Parts

Copper Ferrules, Copper Olives for Compression Fittings

Brass Parts India manufactures and exports precision Copper Ferrules and Copper Olives for compression pipe fittings from Jamnagar, India — supplying plumbing wholesalers, HVAC distributors, industrial pipe fitting manufacturers, and hardware distributors across the USA and worldwide. Our copper olives and ferrules are stamped or machined from certified C12200 DHP copper to exact dimensional standards, providing reliable leak-free seals in compression fittings for copper, stainless steel, and soft plastic tube systems.

A compression olive (also called a compression ring, compression ferrule, or compression insert) is the critical sealing element in a compression fitting — the component that bites into and grips the tube when the compression nut is tightened, creating a permanent, solderless metal-to-tube seal. Export pricing: USD 0.04 – USD 0.80 per piece CIF US seaport.

What Are Copper Olives and Compression Ferrules?

A copper olive (British/Australian/European term) or compression ring / ferrule (US term) is a ring-shaped copper component that fits over the tube between the compression nut and the fitting body. When the nut is tightened, it drives the olive forward and compresses it radially inward, causing it to bite into the outer surface of the tube and form a gas-tight, water-tight metal seal. Copper olives are the standard component in compression fittings for domestic and commercial plumbing, gas installation, HVAC, and industrial tube and pipe connections worldwide.

Types of Copper Ferrules and Olives We Manufacture

Standard Copper Olives for Compression Fittings (Metric)

Metric copper olives for standard compression fittings to BS EN 1254-2, DIN 3861, and equivalent standards. Available for metric copper tube sizes 6 mm to 54 mm OD (matching ASTM B88 Type K/L/M and EN 1057 copper tube OD series). Standard barrel profile for compatibility with all major UK/European fitting brands (Conex, Yorkshire, Pegler, Giacomini, and equivalents).

Imperial Copper Olives for Compression Fittings (Inch)

Inch-size copper olives for compression fittings used with imperial copper tube per ASTM B88 Types K, L, and M. Available for tube sizes 3/8″ to 2″ OD. Dimensions to BS 864 and ANSI/ASME B16.26 compression fitting standards. Used extensively in US residential and light commercial plumbing with compression stop valves, compression unions, and compression-to-solder adapters.

Copper Ferrules for Two-Ferrule Compression Fittings (Swagelok/Parker Type)

Front ferrule and back ferrule sets for two-ferrule tube fittings (equivalent to Swagelok, Parker A-LOK, and equivalent brands) in copper. Front (leading) ferrule: tapered for primary seal and tube grip. Back (trailing) ferrule: provides driving force and secondary seal. Used in laboratory instrument piping, analytical instrumentation, and industrial process tubing in small diameters (1/8″ to 1″).

Copper Flare Ferrules

Thin-walled copper ring ferrules for flare fittings — prevent tube end collapse during flaring. Used with copper refrigerant tube (ASTM B280) in ACR and automotive A/C service. Compatible with SAE 45° flare fittings per SAE J512 and AN/JIC 37° flare fittings per SAE J514.

Copper Olive Rings for Radiator and Heating System Fittings

Copper olives for central heating and hot water radiator valve compression connections (15 mm, 22 mm, 28 mm metric and 1/2″, 3/4″, 1″ imperial). Compatible with all standard UK and European radiator valves. The most commonly replaced plumbing component in UK, Irish, and Australian heating systems — a key export product for Brass Parts India.

Thick-Wall Copper Olives for Gas Fittings

Heavier-section copper olives for gas pipe compression fittings — designed to withstand higher gas line pressures (up to 5 bar) and meet BS 6891 (gas installation) requirements. Thicker barrel wall and slightly different taper angle vs standard plumbing olives — not interchangeable. Available in 15 mm, 22 mm, and 28 mm for UK/AUS/NZ markets; 1/2″ and 3/4″ for US gas line applications.

Custom Copper Ferrules and Olives to Drawing

Non-standard OD/ID, special taper angles, or unusual profile shapes machined from C12200 copper rod or stamped from copper strip to your exact dimensions. Used by specialty fitting manufacturers and OEM plumbing product companies.

Material Grades and International Equivalents

Grade Standard Country Cu % P % Key Property Application
C12200 (DHP Copper) ASTM B152 USA ≥99.9% 0.015–0.04% Phosphorus deoxidized; weldable/solderable Standard compression olives and ferrules
C11000 (ETP Copper) ASTM B152 USA ≥99.9% Max conductivity; lower deoxidation Electrical ferrules and ring terminals
CW024A (Cu-DHP) EN 13601 Europe ≥99.9% 0.015–0.04% European DHP equivalent to C12200 BS EN 1254, DIN 3861 olives
CW004A (Cu-ETP) EN 13601 Europe ≥99.9% ETP copper; European standard Electrical application ferrules
C1220 JIS H3100 Japan ≥99.9% 0.015–0.04% Japanese DHP equivalent Japanese compression fittings
C26000 (Cartridge Brass) ASTM B36 USA 70% Higher strength for stainless tube fitting Brass ferrules for stainless tube compression

Key Specifications

  • Tube Size Range: 6 mm – 54 mm (metric); 3/8″ – 2″ (imperial / inch)
  • Material: C12200 DHP copper (standard); C11000 ETP on request
  • Temper: O60 soft anneal (standard) — essential for reliable olive deformation
  • Dimensional Standards: BS EN 1254-2, BS 864 Part 2, DIN 3861, ASTM B88 / B280, ANSI B16.26
  • Surface Finish: Bright bare copper; tin-plated on request
  • OD Tolerance: ±0.05 mm
  • Pressure Rating: Up to 35 bar water; up to 5 bar gas (heavy-wall grade)

Applications

  • Domestic and commercial plumbing — hot/cold water lines
  • Central heating radiator valve connections
  • Natural gas and LPG distribution piping
  • HVAC refrigerant and chilled water piping
  • Industrial instrumentation and process tubing
  • Laboratory gas and service tubing
  • Solar thermal panel piping connections
  • Medical gas pipeline compression unions
  • Compressed air distribution systems

Why Choose Brass Parts India for Copper Ferrules and Olives?

  • C12200 DHP Copper as Standard: Phosphorus-deoxidized copper ensures perfect olives — no hydrogen embrittlement risk, ideal ductility for sealing, solderability retained.
  • Soft-Annealed O60 Temper: Guaranteed soft condition for reliable olive deformation and sealing — no hard or work-hardened olives that won’t grip the tube properly.
  • Full Standard Compliance: Dimensions to BS EN 1254-2, DIN 3861, BS 864, and ANSI B16.26 — fitting-ready compatibility with all major brands.
  • Both Metric and Imperial: Full range from 6 mm to 54 mm metric and 3/8″ to 2″ imperial — one supplier for all size requirements.
  • Competitive CIF Pricing: USD 0.04–USD 0.80/piece CIF US ports — typically 40–60% below US domestic distributor prices.
  • High-Volume Capability: Progressive die stamping for millions of pieces/month.

Frequently Asked Questions – Copper Ferrules and Olives

Q1: What is the difference between a copper olive and a brass olive?

A: Copper olives (C12200 DHP) are softer, more ductile, and provide a better seal on soft copper tube — they deform more easily and grip the tube surface reliably. Brass olives (C37700 or similar) are harder and stronger — preferred for use with harder tube materials (stainless steel, harder copper alloys) or higher-pressure applications. For standard domestic copper plumbing, copper olives are the traditional and preferred choice; many UK and Australian plumbers prefer copper olives for their “forgiveness” and easy disassembly.

Q2: Why use C12200 DHP copper rather than C11000 ETP for olives?

A: C12200 (DHP — Deoxidized High Phosphorus) is the standard copper for plumbing fittings and olives because it has been deoxidized with phosphorus, eliminating the oxygen that causes hydrogen embrittlement during soldering and brazing operations nearby. ETP copper (C11000) contains dissolved oxygen which can cause embrittlement if the fitting is later soldered or brazed in close proximity. For pure compression (no-solder) olives, C11000 is technically adequate but C12200 is the industry-standard specification.

Q3: Are your copper olives compatible with SharkBite, Conex, or Swagelok fittings?

A: SharkBite push-to-connect fittings do not use compression olives — they use an internal grab ring. For Conex, Yorkshire, Pegler, and similar compression fittings, our metric copper olives are dimensionally compatible and meet the same BS EN 1254-2 / BS 864 standards. For Swagelok-equivalent two-ferrule fittings, please specify the tube OD and wall thickness so we can confirm compatibility.

Q4: What is your MOQ for copper olives?

A: Standard sizes (15 mm, 22 mm, 28 mm, 1/2″, 3/4″): 10,000 pieces per size. Non-standard or custom sizes: 5,000 pieces minimum. Assortment packs and mixed-size bags available for distributor customers.

Request a Quote

Contact Brass Parts India for copper ferrules and copper olives. Email sales@brass-parts-india.com or call +91 22 4344 9300. CIF pricing to all US seaports. 24-hour response.