- 1 - 5th edition No. SS2-8113-2620 Labyrinth Trim Angle Control Valves Model HAL OVERVIEW Model HAL labyrinth trim angle control valves provide the valve plug with Labyrinth groove to restrict generation of cavitation around the sheet by generating fluid resistance by Labyrinth effect. The HAL are best-suited for blowdown control of sturated water in which cavitation and errosion are frequently generated at high temperature and high differential pressure and hand to retain shut-off performance. The actuator employs compact, high output multispring type diaphragm motor. SPECIFICATIONS Body Type Venturi-throat type, forged angle control valve Nominal size 3/4, 1, 1. inches Pressure rating ANSI Class 900, 1500, 2500 End connection Flanged end: Material For body/trim material combinations and operating temperature ranges, refer to Table 1. Bonnet . Plain bonnet (0 to 200 °C) . Finned bonnet (200 to 425°C) Gland type Bolted gland Packing/Grease Standard . Grease not provided When graphite packing is used. Connection type Pressure rating Applicable standard RF ANSI Class 900, 1500, 2500 ANSI B16.5-1981 JPI Class 900, 1500, 2500 JPI-7S-15-1993 RJ ANSI Class 900, 1500, 2500 ANSI B16.5-1981 JPI Class 900, 1500, 2500 JPI-7S-15-1993 Option for oil free treatment or specific fluid use . Grease not provided When V shaped PTFE packing or PTFE yarn packing is used. Note) PTFE: Polytetrafluoroethylene Gasket Type Serrated type Material SUS316 Trim Valve plug Single seated, Contoured-type plug . Metal seat : Equal percentage (%C), Linear (LC) (For flow characteristics, refer to Fig.1) Material For body/trim material combinations and operating temperature ranges, refer to Table 1. 3 3 Specifications are subject to change without notice. “This product is designed for general industrial use.”