Angle seat valves
Angle seat valves
The document outlines the specifications for OMAL S.p.a.'s pneumatic angle seat valves with threaded ends. These valves comply with ISO 228/1 and ISO 7/1 standards and can be assembled in various positions. They are available in Double Acting and Spring Return versions, with Normally Closed (N.C.) and Normally Open (N.O.) configurations. Suitable for air, water, oil, and steam, they support pressures up to 25 bar and temperatures from -10°C to 180°C.
Different valve models (Ares, Atena, Zeus) are highlighted for their lip seals, metal pistons with chemical nickel coating, and pre-loaded seals to prevent leakage. Designed for high flow rates and minimal flow loss, they are certified for explosive environments (ATEX) and comply with European Pressure Equipment standards (PED).
Valves can be configured for Normally Closed or Normally Open operations, with specific flow directions to prevent water hammering. Double Acting bidirectional configurations are also available.
Detailed dimensional tables and material specifications are provided. Valve bodies are made from AISI 316, with components like sleeves, stems, plugs, and seals made from PTFE. Actuator cylinders are made from Poliamide PA 66 + GF 30%, and pistons are available in brass with chemical nickel coating.
Various codes correspond to different valve configurations, including Normally Closed, Normally Open, and Double Acting bidirectional models, detailing specific dimensions, control head sizes, and pressure ratings.
Detailed specifications include threading size, flow rate (Kv), control head diameter, pressure control range, operating pressure, and weight. Valves are categorized by operation type: normally closed, normally open, and double-acting bidirectional.
The 'piloting head replacement kit' includes the complete item without the valve body. The 'shutter replacement kit' includes the shutter and necessary seals.
The document advises against unnecessary printing to promote environmental friendliness.
- Stroke Limiter: Regulates flow by limiting the plug run during opening. Available for all versions and can be used as emergency control in normally open versions.
- Emergency Manual Override: Allows valve opening in emergencies, available on all normally closed valves.
- Limit Switch Box: Monitors open/close positions with mechanical limit switches, suitable for valves with actuators of various diameters. Features optional solenoid valve connections and LED indicators, with IP 65 protection and a temperature range of -20°C to +70°C.
- Inductive Limit Switches NAMUR EExia: Operates at 8 Vdc with a working temperature range of -20°C to +100°C.
- Proximity Limit Switches: Operates at 10-30 Vdc with a working temperature range of -20°C to +70°C.
- Mechanical Limit Switches: Configuration for open and close valve positions.
- Control Solenoid Valve: Electro-pilot 3/2 for direct assembly, with a body and reel positionable at 360°. Features standard manual control and a NAMUR solenoid valve set for function selection.
Available for both electropilot and NAMUR solenoid valves in various AC and DC voltages.
Catalog excerpts
OMAL S.p.a. Via Ponte Nuovo, 11 - 25050 Rodengo Saiano (BS) ITALY Phone +39 0308900145 - Fax +39 0308900423 Booked in the Enterprise Register of: Brescia number 1661640175 Share capital completely deposited: € 500.000,00 PNEUMAT IC VALVES Angle seat valves Threaded end featu res featu res and benefits method s of u se materials, d imensions and d iag ram cod es accessories Features GENERAL FEATURES Threaded valve ends, as per ISO 228/1 and ISO 7/1 – other types available on request. Assembling is possible in all positions: upright, flat or angled. Range available from 3/8” to 2” in the Double Acting versions, Spring Return N.C. from above and below the plug, Spring Return N.O. from below the plug. According to 97/23 EC “PED” ATEX version in conformity with directive 2014-34-EU (to request at time of order) The variations in the actioning of the valve, the several combinations and the possibility to intercept the fluid from above or below the plug, originate multiple versions of the automatic valve. In the table below are indicated the standard versions with the main parameters. On the basis of the kind of valve and the variations of pressure ?P that must be intercepted, the necessary control pressure can be individuated, and consequently, the code for the corresponding valve. Operating media Air,water, alcohol, oil, petroleum products, saline solutions, steam, etc. (as long as compatible with AISI 316 or Bronze RG5). Pressure from 0 to 16 / 25 bar (steam from 180°C, from 0 to 10 bar) depending on the size and model chosen (see following pages). Temperature from –10°C to 180°C. Max. viscosity 600 cst (mm2/s). Control media Driving media: compressed air, lubricated or dry, gas or neutral media. Ambient temperature: -10°C to +60°C Be environmentally friendly...please don't print this document unless you really
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FEATURES & BENEFITS Be environmentally friendly...please don't print this document unless you really need to. 4 / 33
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FEATURES & BENEFITS
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N.C. Normally Closed bidirectional. With the flow coming from below the plug you avoid water hammering. Flow from above the plug for condensable media. N.C. Normally Closed with the flow from above the plug. Flow from above the plug for condensable media. N.O. Normally Open with flow from below the plug. Be environmentally friendly...please don't print this document unless you really need to.
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Double Acting bidirectional Be environmentally friendly...please don't print this document unless you really need to.
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Testa di comando orientabile a 360° Control head adjustable at 360° Esempiodell interfaces EN 15714-3 (Namur) assemblata alia testa di comando N'2 INSERTI FILETTATATI DA G 1/8" PER LO STAFFAGGIO DELL INTERFACCIA EN 15714-3 (Namur) ALLATE5TA DI COMANDO pilotaggio di elettrovalvola NAMUR N°2 THREADED INSERTS G I/S" FOR CLAMPING THE INTERFACE EN IS7I4-3 (Namur) TO THE CONTROL HEAD Example of NAMUR plate EN 15714-3 to be assembled on the control head To be supplied ON REQUEST once NAMUR Solenoid valve should be needed FORO PASSANTE PER PASSAGGIO ARIA (entrambi gli inserti) THRO UGH HOL E FOR AIR...
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PRESSURE/TEMPERATURE DIAGRAM i^i Be environmentally friendly...please don't print this document unless you really need to.
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Testa di comando orientabile a 360' Control head adjustable at 360° N"2 INSERTI FILETTATATI DA G 1/8" PER LO STAFFAGGIO DELL INTERFACCIA EN 15714-3 (Namur) ALLA TESTA DI COMANDO N"2 THREADED INSERTS G I/S" FOR CLAMPING THE INTERFACE EN 15714-3 (NamuriTOTHE CONTROL HEAD_ Esempio dell'interfaccia EN 15714-3 (Namur) assemblata alia testa di comando Da fornire A RICHIESTA nel caso di pilotaggio di elettrovalvola NAMUR Codice: KBNJ0001 Example of NAMUR plate EN 15714-3 to be assembled on the control head To be supplied ON REQUEST once NAMUR Solenoid valve should be needed Code: KBNJ0001 FORO PASSANTE...
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PRESSURE/TEMPERATURE DIAGRAM Be environmentally friendly...please don't print this document unless you really need to.
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**Control cylinder without NAMUR interface Bronze version B C H ^ Be environmentally friendly...please don't print this document unless you really need to.
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testa head testa head 090 aria 0,238 dmVdldo air 0,238 dmVcycle testa head 063 aria 0,108 dmVdldo air 0,108 dmVcycle testa head aria 0,505 dmVdldo air 0,505 dmVcycle ARES ATHENA NORMALLY CLOSED N.C. Normally Closed bidirectional. With the flow coming from below the plug you avoid water hammering. With the flow from below the plug p operating Weight plug HEAD Be environmentally friendly...please don't print this document unless you really need to.
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With the flow from above the plug see diagrams below The “piloting head replacement Kit” includes the complete item without the valve body only The shutter “replacement Kit” includes the shutter and the necessary seals Nei diagrammi le linee tratteggiate indicano le versioni disponibili a richiesta In the diagrams, the dash lines indicate versions available on request Pressione di comando Control pressure bar aria 0,238 dmVcilcio air 0,238 dmVcycle Pressione di comando Control pressure bar ARES AND ATENA NORMALLY CLOSED N.C. Normally Closed with the flow coming from above the plug. aria 0,505...
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