Butterfly Valves

TALIS – the number one choice for all valve-related products. TALIS is the major brand whenever products and services are needed for the water cycle. The brands ATLANTIC PLASTICS, BAYARD, BELGICAST, ERHARD, FRISCHHUT, SCHMIEDING, STRATE, UNIJOINT and WAFREGA are united under this name to provide a unique comprehensive service that provides the best solution for every application. Our global experience and the in-depth knowledge of our employees are the basis for TALIS’ innovative strength. In our quest for new sustainable solutions, we regularly set new milestones in valve technology. And have...

Established in 1957, Belgicast is a leader company in the manufacturing of gate valves, check valves and butterfly valves, as well as universal couplings and flanged adaptors commonly used in clean and sewage water applications, in natural gas Our range of products features diameters from 20 up to 2200 mm and nominal pressures from 10 up to 40 kg/cm2 in accordance with DIN, ISO, BS5, ANSI, J IS, API. The purpose of this catalogue is to inform our customers about the wide range of butterfly valves Belgicast manufactures: lug, wafer and flanged type up to DN2200, and the actuators possibilities....

Main Features Range GOLD Model: MAIN FEATURES: • Replaceable liner • Easy maintenance • Low operating torque • Centered shaft • Bidirectional flow • Rubber lined • omplete protection of the shaft and body from circulating fluids C • or clean water with temperature from -10ºC to +80ºC (special manufacturing for other fluids and temperatures upon F request) • Blue Ral 5015 anticorrosive epoxy powder coating electrostatically applied, 200 microns average • Class tightness Rate A according to EN 12266-1 (“O drops”) MATERIALS: BODY • EN GIS-400-15 (GGG-40) • CF8M • CF3M • CF3M Polished • Aluminium-Bronze...

Manufacturing Program Torque values Hydraulic data Rubber liners and application Butterfly Valves

UPPER BEARING LOWER BEARING STANDARD MATERIAL STANDARD MATERIAL UPPER SHAFT LOWER SHAFT UPPER BEARING LOWER BEARING LOCATING SCREW Butterfly Valves

Installation between flanges according to EN 1092 PN10/16 Installation according to PN-6, ANSI-150, BS Table E/D, JIS-5K/10K upon request

STANDARD MATERIAL UPPER BEARING LOWER BEARING STANDARD MATERIAL UPPER SHAFT LOWER SHAFT UPPER BEARING LOWER BEARING LOCATING SCREW Butterfly Valves

Installation between flanges:

Wafer type (art. 14) DN350-700 STANDARD MATERIAL DISC BEARING LOCATING SCREW INTERMEDIATE BEARING STANDARD MATERIAL UPPER SHAFT LOWER SHAFT UPPER BEARING LINER UPPER SHAFT LOWER SHAFT UPPER BEARING DISC BEARING LOCATING SCREW INTERMEDIATE BEARING LOWER BONNET STANDARD MATERIAL UPPER STEM LOWER STEM UPPER BONNET LOWER BONNET PLUG STEM Butterfly Valves

Butterfly Valves

UPPER SHAFT LOWER SHAFT UPPER BEARING STANDARD MATERIAL DISC BEARING LOCATING SCREW STANDARD MATERIAL UPPER SHAFT LOWER SHAFT UPPER BEARING DISC BEARING LOCATING SCREW INTERMEDIATE BEARING STANDARD MATERIAL UPPER SHAFT LOWER SHAFT UPPER BEARING DISC BEARING Butterfly Valves LOCATING SCREW INTERMEDIATE BEARING LOWER BONNET

Butterfly Valves

STANDARD MATERIAL UPPER STEM LOWER STEM UPPER BONNET LOWER BONNET PLUG STEM STANDARD MATERIAL UPPER STEM LOWER STEM UPPER BEARING LOWER BEARING LOWER DISTANCING UPPER DISTANCING UPPER BONNET LOWER BONNET COTTER UPPER STEM COTTER STEM/DISC Other materials upon request. See page 3. Butterfly Valves

Butterfly Valves

Installation in pipeline Flanges must leave enough space to make the assembly of valve without dragging the liner. Before tightening the flanges screws, open the valve completely and check that operation is effected at a complete freedom. The disc must be in the position shown in the drawing. (NEVER IN CLOSED POSITION) ATTENTION Do not weld the flanges to the pipe with assembled valve. HEAT COULD HARM THE LINER VALVE POSITION GENERAL PRECAUTIONS In valves up to DN-300 with clean liquids, - Do not place other elements with resilient projection, such as rubber expansion joint in contact with the...

PIPE FLANGE PIPE FLANGE E = Valve face to face distance L = Threaded rod length T = Bolt length M = Rod, bolt or nut metric size No = Number of rods or bolts PN-10 BOLTING FOR FLANGE TYPE 1 AND WAFER BOLTING FOR FLANGE TYPE 2 BOLTING FOR FLANGE TYPE 1 AND WAFER THREADED ROD BOLTING FOR FLANGE TYPE 2 Butterfly Valves

Hydraulic data Flow coefficient Cv: Flow in USGIPM that when going through the valve produces a loss of head (∆p) of 1 psi. Flow coefficient KV: Same as above in Q metric units in m3/hour and ∆P in Kg/cm2. FLOW VARIATION CURVE It shows the variation of (Cv) or (KV) in terms of the valve opening angle. LOSS OF HEAD CALCULATION FORMULAS For liquids (in metric units) – ∆pin Kg/cm2. – Q in m3/hour. – g Relative density (with relation to the water). – KV valve flow coefficient. For gas (in metric units) – ∆p in Kg/cm2. – P1 Valve inlet pressure in absolute Kg/cm2. – Q in Nm3/sec. – g Relative density...

Rubber liners and applications MATERIAL CHEMICAL NAME Water, weak mineral acids and basis, water ketones, esters Ethylene-Propylene Terpolymer High temperature AcrylonitrileButadiene Copolymer Oils, Greases, Fuel, Gas oil, CO2, CO, H2 Chlorosulfonated Polyethylene Moderate resistance to oil, greases and weak acids Hexafluorpropylene vinylidene fluoride copolymer Best chemical resistence HFP-VDF-TFE terpolymer Oxygenated Gasoline Very good abrasion resistance Highest and lowest temperature resistance Poly methyl vinyl siloxane Steam water SILICONE STEAM SILICONE Orientative information provided...

The above indicated torque values are Maximum Working Pressure (bar) 16 for guidance only since they have been calculated under constant working pressure and conditions. It is convenient to consider velocity of the fluid because of the dynamic forces produced by the Butterfly Valves flow on the disc. For valves bigger than DN200, this dynamic torque must be taken into account when selecting an actuator. Torques listed are valid for Belgicast butterfly valves with EPDM or Nitrile liners for water at room temperature (approx 20ºC). Belgicast safety factor is not included, please apply 30%. Belgicast...