Reliance RWC Blue 2116 Rubber Seat Pressure Relief Expansion Cartridge 8 Bar ZRC214009

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.

The NABIC 520 spares kit includes a replacement diaphragm and 'O' rings, designed to rejuvenate all the soft components within the valve. This comprehensive kit is specifically tailored for the NABIC 520 safety relief valve, ensuring optimal performance and reliability.

Product Specifications

Sizes: Available in 1/2", 3/4", 1", 1.1/4", 1.1/2", and 2".

Connections: BSPP male, cone and nut to DIN 11851, flanged to DIN or ANSI, threaded to DIN 11851.

Materials: Constructed from high-quality Stainless Steel (91.2). Disk: Viton. Joints & Seals: FPM.

Medium: Suitable for non-toxic steam and gases. Set Pressure: Vacuum range from -0.05 to -0.95 Barg.

Temperature Range: Operates effectively between -60 to +150°C (91.2).

Design Certification: TUV certified.

Important Note: Please be aware that the Brass (91.3) version of this valve has been discontinued.