Tri-Clamp Gaskets
A Tri-Clamp gasket, also known as a Tri-Clover gasket, is a sanitary sealing element designed for use between two ferrules within a Tri-Clamp fitting system. These gaskets provide a leak-proof and hygienic seal, making them essential for piping systems in the food, beverage, pharmaceutical, and biotechnology sectors.
Our Tri-Clamp gaskets are specifically manufactured for the Food & Dairy, Chemical, and Pharmaceutical industries, where standard tube and pipe couplings are critical for operational efficiency.
All gaskets are FDA approved and are supplied as Type 2 Lipped as standard, facilitating easy assembly.
Elastomer Gaskets – EPDM, Silicone & VITON®
These gaskets are engineered to ensure a smooth transition throughout the bore when fully assembled. To maintain this quality, all our Elastomer gaskets are produced with a shore hardness of 75/85 IRHD. They comply with FDA regulations concerning rubber and rubber-like materials as specified in Title 21, paragraph 177.2660, and meet Class 1 material classification of the 3A sanitary standards in the USDA and standard 51 of the NSF. Our Elastomer range is also colour coded for easy identification: EPDM = Black/Blue, VITON® = Green, Silicone = White/Clear.
PTFE Solid (Teflon®)
The PTFE Solid gaskets are meticulously manufactured from solid billets of virgin PTFE, possessing a hardness of 60/65 shore D, ensuring precision components with low porosity properties. These gaskets are also produced in accordance with FDA regulations for Teflon® and fluorocarbon resin materials as outlined in Title 21, paragraph 177.1550, suitable for contact with foodstuffs. Additionally, they satisfy Class 1 material classification of the 3A sanitary standards, enabling us to provide custom sizes to meet specific customer requirements, with most requests for non-standard components readily accommodated.
PTFE Envelope (Teflon®)
Envelope gaskets feature a composite construction, combining a PTFE (Teflon®) outer layer with a VITON® filler as standard. This design ensures a seal with a degree of elasticity, delivering excellent sealing properties alongside flexibility. The PTFE component is specified to have a hardness of 60/65 shore D and is crafted from a solid billet of virgin PTFE (Teflon®). This construction minimises the risk of stress cracking in the product contact area, thereby enhancing the aseptic qualities of the sealing system. Envelope gaskets are solely manufactured from compounds that comply with FDA regulations for Teflon® and fluorocarbon resin materials, as stated in Title 21, paragraph 177.1550, suitable for food contact, and also meet the Class 1 material classification of the 3A sanitary standards. We offer special sizes to meet customer needs, and our manufacturing process allows for variations in filler materials and bespoke components as required.
Other Products and Services from Flowstar (UK) Ltd
Resideo Braukmann D15S Spares - Complete Valve Insert
Introducing a complete replacement valve insert for the Resideo Braukmann D15S Pressure Reducing Valve. Designed to ensure optimal performance and reliability, this high-quality valve insert is essential for maintaining the efficiency of your plumbing system.
Part Codes:
NABIC 500T Combined Pressure & Temperature Relief Valve
FSSCDN - Nanoscored Rupture Discs
The FSSCDN Nanoscored rupture disc features precision micro-scored petals with four, six, or more radial scores, ensuring rapid, controlled opening while minimizing the risk of petal separation. This design makes the disc particularly well suited for high burst pressure applications and demanding operating environments.
Engineered for use with gases and liquids, the FSSCDN performs reliably under cycling and pulsating conditions without compromising safety margins. In the event of overpressure, the disc activates within milliseconds and opens cleanly without fragmentation, making it an excellent solution for protecting safety relief valves.
The disc supports an operating-to-burst pressure ratio of up to 85% and offers excellent corrosion resistance, which can be further enhanced with an optional PTFE lining. In many installations, the disc can also withstand full vacuum conditions without the need for additional supports, providing greater installation flexibility.
Key Specifications:
Sizes: 1" (DN25) to 36" (DN900)
Materials: Stainless steel, Alloy 201, 400, 600, 625, C276, Titanium
Burst Pressure Range: 2–413 bar g (30–6000 psi g), depending on size and material
Krl: 1.33
Tolerance: ±5% to ±20%
Temperature Range: –196°C to 600°C
Operating Margin: Up to 85%
Fragmentation: None
Use Under Valve: Yes
Corrosion Resistance: Very good
Linings: Optional
Holder Options: FSHI/A, FSHI/P, FSHI/F, FSHTC
Rupture Detection: Electrical, Magnetic, Inductive, Optical
Certifications: ASME (UD Stamp), PED (CE), ATEX EX II 2 GD
Flowstar (UK) Ltd
Wiltshire Road, Kingston-upon-Hull, East Riding of Yorkshire, HU4 6PA, United Kingdom
Flowstar (UK) Ltd is a leading global supplier of safety, relief, and reducing valves. With strong partnerships across major manufacturers, we deliver precise, reliable valve solutions tailored to your needs. Email enquiries to sales@flowstar.co.uk or call us on +44 (0)1482 601030.