Gaskets

Industrial Gaskets for Fluid Handling & Flange Sealing

AIMS Industrial stocks the pre-formed gasket range used every day on Australian trucks, tankers, breweries, dairies, wineries and process plant: cam & groove (camlock) coupling gaskets, tri-clamp sanitary gaskets, RJT dairy fitting gaskets and flange insertion gaskets in rubber, compressed fibre and spiral wound construction from Dixon and AAP. These are solid, cut or moulded sealing elements — if you're after liquid or paste sealant instead (RTV silicone, anaerobic flange sealant, gasket maker), see our separate Gasket Sealants range. This page covers the physical gaskets you fit between two mating faces or inside a quick-connect coupling. Not sure which one suits your job? Our Spiral Wound Gasket Guide: Construction, Flange Standards, Colour Codes & Selection covers selection in detail.

Quick Reference — Gasket Material at a Glance

These are typical elastomer properties, not a certification — always confirm chemical compatibility and temperature against your actual process media before ordering. Give us a call on (02) 9773 0122 if you're not sure which material suits your line.

Cam & Groove (Camlock) Coupling Gaskets

Cam & groove couplings are the quick-connect fitting of choice for tankers, IBCs, transfer hose and temporary process lines, and the gasket seated inside the female coupler is what actually holds the seal — not the cam arms. AIMS stocks Dixon cam & groove gaskets across the full material range, colour and stripe coded so you can identify the elastomer at a glance without pulling a datasheet:

• Buna-N (Black, 1 Blue Stripe) — general-purpose, oil and fuel resistant, the most common camlock gasket in the range, also available in an extra-thick Black/2 Blue Stripes version and a food-grade White Buna-N (White, 1 Blue Stripe) variant.
• EPDM / Ethylene Propylene (Black, 1 White Stripe) — water, steam and weather duty, poor with petroleum oils.
• Neoprene (Black, 1 Red Stripe) and White Neoprene (No Stripe) — general-purpose and food-contact options.
• Silicone (Red, No Stripe) — high-temperature and food/beverage service.
• FKM (Black, 1 Yellow Stripe) — fuels, oils and chemicals where Buna-N falls short.
• PTFE-encapsulated FKM (Translucent/Black) and PTFE-encapsulated Silicone (Translucent/Red) — a PTFE face bonded over an elastomer core for aggressive or high-purity chemical transfer.

Sizes run from 15 mm through to 75 mm+ coupling bores. Match the gasket colour/stripe code on the pack to what's already fitted on your coupler, or tell us the coupling size and the fluid being transferred and we'll pick the right elastomer. See our Camlock Fittings range for the couplers, arms and adaptors these gaskets seal.

Tri-Clamp (Sanitary) Gaskets

Tri-clamp (sanitary/hygienic clamp) fittings are standard across dairy, brewery, winery and food processing lines, and the gasket clamped between the two ferrule faces is a wear item that should be replaced on a schedule rather than left until it fails mid-batch. AIMS stocks Dixon standard clamp gaskets, colour-dot coded by material:

• Clear Silicone (No Dot) — the most common food-grade tri-clamp gasket, good high-temperature tolerance for CIP/steam cycles.
• Black Buna-N (Red Dot) — general dairy and beverage duty, not for high-fat or oily product.
• White PTFE (No Dot) — best chemical resistance, used where product or CIP chemicals attack rubber.
• Black EPDM (Three Green Dots) — steam and hot-water CIP lines.
• Black FKM (1 White/1 Yellow Dot) — oils, fats and higher-temperature product.

Sizes are stocked from 1/2" through to 4" to suit common tube ODs. Keep a spare set on hand — a perished tri-clamp gasket is one of the most common causes of an unplanned line stop on a bottling or brewing shift.

RJT Gaskets — Dairy & Beverage Fitting Seals

RJT (Royal Jersey Type/British Standard dairy) unions are still widely used across Australian dairy processing, wineries and food manufacturing for their quick-strip cleaning access. AIMS stocks the round O-ring style RJT gasket in EPDM and Buna-N, including CIP-rated versions engineered to hold up under repeated clean-in-place cycles, plus a dot-coded Black Buna-N (Red Dot) option, from 1" through to 3". If your line runs on RJT unions rather than tri-clamp ferrules, this is the correct seal — the two aren't interchangeable.

Flange Insertion Gaskets — Rubber, Compressed Fibre & Spiral Wound

For pipe flange joints rather than hose couplings, AIMS stocks AAP insertion gaskets sized to common Australian flange drilling patterns:

• Natural rubber insertion gaskets in Table-D, Table-E and PN10 drilling patterns, covering sizes from 1/2" up to 12".
• Compressed fibre insertion gaskets in Table-E pattern, plus a compressed fibre ring-type gasket for raised-face joints.
• Spiral wound gaskets for higher-pressure and higher-temperature flanged connections where a soft rubber or fibre gasket won't hold under bolt load.
• A non-reinforced gasket option for lighter-duty, low-pressure joints.

Table-D, Table-E and PN10 refer to different flange drilling standards — the bolt hole pattern and gasket outside diameter differ between them, so the flange drilling on your pipework (stamped on the flange, or specified by your engineer or the original pipe spec) determines which pattern gasket you need. Send us the flange size and drilling standard, or a photo of the flange face, and we'll confirm the right insertion gasket before you order. See our Pipe Flanges range for matching flange stock.

How to Choose the Right Gasket

Selection comes down to four questions, in this order:

• What fitting are you sealing? A camlock coupler, a tri-clamp ferrule, an RJT union and a bolted pipe flange each take a different gasket shape — they are not interchangeable, so start here.
• What's the media? Water and general low-hazard fluids give you the widest material choice. Fuels, oils and solvents rule out plain natural rubber and push you toward Buna-N, FKM or PTFE. Food and beverage product generally calls for silicone, EPDM or PTFE food-grade gaskets and CIP-rated seals.
• What's the temperature? Match the material's working range (see the Quick Reference table above) to your actual process temperature, including CIP/steam cleaning cycles, which often run hotter than the product itself.
• What's the pressure and duty cycle? Camlock and tri-clamp gaskets are generally low-to-moderate pressure. For higher-pressure bolted flange joints, a compressed fibre or spiral wound gasket will outperform a plain rubber insertion gasket.

Where a solid gasket isn't the right fit — an irregular casting face, a valve cover, a repair on a housing that no longer holds a standard gasket shape — an RTV silicone or anaerobic gasket maker from our Gasket Sealants range may be the better tool for the job.

Related Sealing & Fitting Ranges

• Camlock Fittings — the couplers and adaptors these cam & groove gaskets are seated in.
• Pipe Flanges — flange stock to match your insertion gasket.
• O-Rings & O-Ring Kits — round-section seals for hydraulic, pneumatic and fitting applications.
• Oil Seals & O-Rings — rotary shaft seals alongside the O-ring range.
• Hose Clamps — for the hose end, once the coupling gasket is sorted.
• Gasket Sealants — RTV silicone and anaerobic form-in-place sealants for jobs a cut gasket can't cover.
• Loctite — threadlockers and pipe thread sealants for the fitting connections either side of the gasket.

Order Gaskets from AIMS Industrial

AIMS Industrial stocks Dixon and AAP gaskets ready to ship Australia-wide from our Sydney warehouse, with a support team in Manila keeping order processing fast. If you're not certain which material, size or drilling pattern you need, give us a call on (02) 9773 0122, reach out via our contact page, or send through your specs on our request a quote page for volume or project pricing. We're happy to help you match the gasket to the fitting and the fluid — that's what industrial supplies made simple looks like.

People Also Ask

What's the difference between a gasket and a gasket sealant?

A gasket is a pre-formed solid seal — cut sheet, a moulded ring, or a spiral wound insert — fitted between two mating faces. A gasket sealant (RTV silicone, anaerobic flange sealant) is a liquid or paste that cures in place, used where there's no standard gasket shape available or the mating surface is irregular. See our Gasket Sealants range for the liquid/paste products.

Can I use a Buna-N (nitrile) gasket with fuel or hydraulic oil?

Yes — Buna-N/NBR is one of the most oil and fuel resistant common gasket elastomers and is the standard choice for camlock and RJT seals in petroleum and hydraulic oil transfer. For aggressive chemicals or higher temperatures, step up to FKM or PTFE-encapsulated instead.

What gasket material is food and beverage safe?

Silicone, EPDM and PTFE are the common food-contact choices, and CIP-rated versions are built to survive repeated clean-in-place caustic and hot water/steam cycles without breaking down. Check the specific gasket's food-contact rating for your application — dairy, wine and general beverage lines don't all use the same material by default.

Are tri-clamp and RJT gaskets interchangeable?

No. Tri-clamp (sanitary clamp) gaskets seal between two flat ferrule faces under a clamp, while RJT gaskets are a round O-ring style seal fitted inside a threaded union. They're sized and shaped differently and are not cross-compatible — check which fitting type is on your line before ordering.

How do I know which flange gasket drilling pattern I need?

The drilling pattern (Table-D, Table-E, PN10, etc.) is set by how the flange itself was drilled — it's usually specified on the original pipework drawing, or stamped or documented against the flange. If you're not sure, measure the bolt hole circle and gasket OD/ID, or send us a photo of the flange face and we'll confirm the right insertion gasket.

How often should tri-clamp and camlock gaskets be replaced?

As a wear item exposed to repeated clamping, cleaning chemicals and temperature cycling, these gaskets should be inspected regularly and replaced on a schedule rather than run to failure — a perished gasket mid-shift is a more expensive problem than keeping spares on hand.