FLOWMATIC® - Pressure Independent Control Valve - NA Market

FLOWMATIC® - Pressure Independent Control Valve - NA Market

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A válvula de controle independente de pressão FLOWMATIC® (PICV) combina um regulador automático de pressão diferencial e uma válvula de controle com atuador opcional. O PICV ajusta automaticamente a taxa de fluxo e a mantém constante sob condições variáveis de pressão diferencial do circuito onde está instalado.
A taxa de fluxo é ajustada:
• manualmente no regulador automático de pressão diferencial, para restringir o valor máximo, ou
• automaticamente pela válvula de controle ao utilizar um atuador proporcional (0–10 V) ou ON/OFF adquirido separadamente e instalado em campo.
O (PICV) é fornecido completo com portas de teste de pressão a montante e a jusante para medir as condições de operação.
O FLOWMATIC PICV foi projetado para uso em sistemas hidrônicos de aquecimento e resfriamento e possui fechamento hermético para minimizar a perda de energia.

Especificação

Pressure independent control valve (PICV) complete with pressure/temperature ports. Connections ½”, ¾”, 1” NPT male, sweat,
press. Connection for actuators code 145013, 145018 and series 6565: M30 x 1.5. DZR corrosion-resistant brass body and bonnet, EN 12164 CW602N. Stainless steel EN 10088-3 (AISI 303) control stem and piston. Stainless steel EN 10270-3 (AISI 302) springs. Peroxide-cured EPDM differential pressure regulator diaphragm, valve plug and differential pressure regulator seals. Asbestos-free EPDM fibre washers. Glass fiber reinforced PA6G30 pre-adjustment indicator, polyamide nylon PA6 knob.
Water and up to 50% maximum glycol solutions. Maximum working pressure 360 psi (25 bar). Maximum differential pressure with actuator code 145013, 145018 and 6565 series) installed 58 psi (4 bar). Working temperature range -4 to 250°F (-20–120°C). Nominal differential control range 3.6 to 58 psid (.25–4 bar). Accuracy ± 5% of the setpoint. Flow rate regulation range: 0.09-0.90 gpm (0.34–3.4 l/min); 0.35-1.75 gpm (1.3–6.6 l/min); 0.35-3.50 gpm (1.3–13.2 l/min); 0.53-5.30 gpm (2.0–20
l/min); 0.79-7.9 gpm (3.0–30.3 l/min); 1.3-13 gpm (5.0–50 l/min); 1.6-16 gpm (6.25–62.5 l/min). The adjustment position does not affect the valve plug stroke. Full stroke modulation. Flow rate pre-adjustment 10 reference positions and continuous adjustment. Leakage 0%: class V in accordance with EN 60534-4, equivalent to ISA/FCI Class VI. Provide with optional 24 V AC/DC supply actuators: 0 to 10 volt proportional fail-in-place, code 145013; 0 to 10 volt proportional, normally closed, normally open, code 145018; on/off thermo-electric normally closed, code 656504; 0 to 10 volt proportional thermo-electric, normally closed, code 656524, separately sourced, Provide with optional inlet and outlet full-port ball valves, NPT female x NPT female, for isolating size 1/2 or 1 inch 145 series valves, separately-sourced, Code NA108 series, with separately-sourced close nipples. field installed. Provide with optional inlet and outlet isolation ball valves for size 3/4 inch 145 series valves, separately sourced, code 290030, and stem extension, separately sourced, code NA10815, field installed.