32 S Y S T E M C O M P O N E N T S Selection Guide N T S * - S Z - T - 0 2 0 2 Breakaway 304 Stainless Steel Series SZ = Cable Release PI = Pull-Away Connection T = FNPT x FNPT F = 150 lb RF x 300 lb RF F3 = 300 lb RF x 300 lb RF Size 02 = 2" 03 = 3" 04 = 4" 06 = 6"** Seals 02 = Viton® 03 = EPDM 04 = Chemraz® 06 = Kalrez® Safety Breakaway Devices NTS-PI Series (Pull-Away) Breakaway Coupling Areas of application The OPW Engineered Systems NTS-PI Series Breakaway protects loading facilities, hoses and prevents spills at the same time. Separation occurs by a simple pulling force on the hose line. It finds its application in fluid and gas transfer. The OPW Engineered Systems NTS-PI is axially built into hose lines (see example design at right). Construction of the NTS-PI Series The NTS-PI consists of two halves (Adaptor & In-line), each equipped with spring-loaded valves held together by a ball-bearing connection for rapid hook-up. A pulling force on the hose triggers the separation. To protect the hose line from damage, the separation force of the NTS-PI can be individually adjusted. Function While coupled, the valves of the Emergency Release System NTS-PI are open. Upon a pre-determined tensile force – independently from the working pressure – the separation occurs. Both valves close thus preventing spills and protecting the loading station at the same time. The NTS-PI allows for a spare-part-free, non-destructive separation – no shear pins involved and no destruction. After depressurizing and emptying the hose, the NTS-PI can be reassembled easily, without tools or spare parts. Material/Seal Rings: • 1.4571(316 Ti)/PFE/Chemraz® for most chemicals • Hastelloy® , Monel 400, Alloy 20/Chemraz for acids and alkaline solutions • Aluminum 1.4301(304)/Viton for LPG, solvents & fuels Pressure Ratings: 360 psi for all sizes (Alu 232psi) Connections: NPT/BS or Flange 150/300# 2", 3", 4" Options: Valve only on one side, open system for water, vapor lines, granulate material/powder, highly viscous media *Other materials and seals upon request. Specifications and conditions may vary. IMPORTANT: OPW products should be used in compliance with applicable federal, state, provincial, and local laws and regulations. Product selection should be based on physical specifications and limitations and compatibility with the environment and materials to be handled. OPW MAKES NOWARRANTY OF FITNESS FOR A PARTICULAR USE. All illustrations and specifications in this literature are based on the latest product information available at the time of publication. OPW reserves the right to make changes at any time in prices, materials, specifications and models and to discontinue models without notice or obligation. **PI series only available up to 4" size
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