MT Valves & Fittings product. Series 66 double coupling with compression fitting. Brass fitting in accordance with standard UNE-EN 12164. Nickel-plated brass body and nut and fastening threads in accordance with ISO 288/1. Coupling 6601 has a pressure rating of 16 bar and a maximum temperature rating of 30°C at 16 bar, 65°C at 10 bar, 110°C at 6 bar and 120°C at 5 bar. Thanks to its compression fitting system, it is easy and quick to install, saving time and making assembly more convenient. MT’s brass compression fittings are manufactured in accordance with the hot forging method and in accordance with EN 1254-2. They have high temperature and pressure resistance, making them ideal for both hot and cold water fluid handling applications and are suitable for EN 1057:2007 copper and BS4127:1994 stainless steel pipe systems. Available references and published specifications: • 6601012 — measures: NICKEL PLATED BRASS STRAIGHT COUPLING 12X12; weight (kg): 0.04; small / large box: 10 / 300 • 6601015 — measures: NICKEL PLATED BRASS STRAIGHT COUPLING 15X15; weight (kg): 0.06; small / large box: 10 / 240 • 6601018 — measures: NICKEL PLATED BRASS STRAIGHT COUPLING 18X18; weight (kg): 0.08; small / large box: 10 / 160 • 6601022 — measures: NICKEL PLATED BRASS STRAIGHT COUPLING 22X22; weight (kg): 0.1; small / large box: 10 / 140 • 6601028 — measures: NICKEL PLATED BRASS STRAIGHT COUPLING 28X28; weight (kg): 0.15; small / large box: 10 / 70 • 6601035 — measures: NICKEL PLATED BRASS STRAIGHT COUPLING 35X35; weight (kg): 0.25; small / large box: 5 / 45 • 6601042 — measures: NICKEL PLATED BRASS STRAIGHT COUPLING 42X42; weight (kg): 0.33; small / large box: 5 / 35 • 6601054 — measures: NICKEL PLATED BRASS STRAIGHT COUPLING 54X54; weight (kg): 0.58; small / large box: 5 / 30 Price and local availability on request. Source: https://mtspain.net/en/straight-coupling-nickel-plated-brass-compression/