Finden Sie schnell steuerventil hydraulik elektrisch für Ihr Unternehmen: 3 Ergebnisse

Elektromechanisch gesteuertes Gasregelventil. The Young & Franklin 3010 Series sonic flow Gas Control Valves (GCVs) are electro-mechanically actuated (EMA) to provide excellent speed and valve position accuracy. This GCV electronically homes on power cycle and has a turndown ratio of ~100:1. The entire YF 3010 Series is certified for use in hazardous locations around the world and available in a range of sizes suitable for industrial or power turbines of any size. The valve body is coupled to an actuator assembly that contains a fail-safe spring to quickly close the valve, halting fuel flow in the event of a power failure or turbine trip condition. Shock absorbers protect the actuator drive mechanism and valve seats during rapid closing thus ensuring reliable operation, and independent position feedback can be obtained via 2 optional LVDTs. The complete system provides precise fuel flow delivery with reliable operation. Avaliable Sizes: 1" -- 2" -- 3" -- 4" -- 6" Flow Profile: 1" - 3" (Linear / Non linear) -- 4", 6" (Linear) Rated Cg: 1" (Up to 311 Cg) -- 2" (Up to 1200 Cg) -- 3" (Up to 2900 Cg) -- 4" (Up to 4300 Cg) -- 6" (Up to 6600 Cg) Estimated Dry Weight: 1" (75 lbs. / 34 kg) -- 2" (95 lbs. / 43 kg) -- 3" (160 lbs. / 54 kg) -- 4" (255 lbs. / 116 kg) -- 6" (370 lbs. / 168 kg) Slew Time: 1" - 2" (≤250 ms) -- 3" (≤350 ms) -- 4", 6" (≤700 ms) Trip Time: 1" - 3" (≤250 ms) -- 4", 6" (≤350 ms) Maximum Operating Pressure: Carbon Steel: 620 psig (42.7 barg) -- Stainless Steel: 497 psig (34.2 barg) Burst Pressure: 5x Maximum Operating Pressure Valve Flange Size: ASME B 16.5 Class 300 Flange Fluid Temperature Range: -0°F to 450°F (-18°C to 232°C) Ambient Temperature Range: -4°F to 212°F (-20°C to 100°C) Mean Time Between Service: 96,000 Hours Mean Time Between Failures (MTBF): 290,000 Hours Valve Materials: Available in Carbon Steel or Stainless Steel (NACE MRO175 Compliant) Bandwidth/Frequency Response: Customizable up to 23 Hz with 3dB attentuation Independent Feedback: 2 LVDTs (Optional) Motor Coil: Class F insulation (311°F, 155°C) LVDT Wiring: 6.56 ft (2 m) Flying Lead or MIL Connector Motor Wiring: 3 ft (.91 m) Flying Lead or 32.8 ft (10 m) Jacketed Cable Visual Position Indicator: Yes Ingress Protection: IP65 Stem Leakage: Zero Leakage, as shipped Seat Leakage: Class IV per ANSI FCI 70-2 Failure Mode: Spring to drive valve to Safe position (Fail Close) Environmental: MIL-STD-810 - Shock and Vibration Command: 4-20 mA Position, -8 to +8 mA Triple Redundant Velocity Certifications: Standard Assembly: (Class 1 Div 2, Group B, C & D, T3) -- (ll 2G Ex db IIB+H2 T3 Gb) . With Optional LVDTs: (Class 1 Div 2, Group B, C & D, T3) -- (ll 2G Ex db ibIIB+H2 T3 Gb)

Die Y&F 8580 Serie Gas Control Assemblies ermöglicht eine schnelle und zuverlässige Kontrolle des Gasbstroms zum Verbrennungssystem einer grossen Industrie- oder Nutzgasturbine. The Y&F 8580 Series Gas Control Valve Assemblies provide fast and reliable control of gas fuel flow to the combustion system of a large industrial or utility gas turbine. The two-way valves provide variable flow control in applications requiring highly linear critical gas flow relative to valve stroke. The hydraulic actuator assemblies provide safe turbine fuel shutoff and reliable valve positioning. Control valve positioning is affected through a triple coil, two-stage servo valve that recieves a +/- 8 mA command. Position feedback is measured using two LVDT’s. Y&F 8580 Series Valves utilize a common design for 1” to 10” line size applications. Line Size: 2" -- 3" -- 4" -- 6" -- 8" Flow Characteristics: 2"- 8" (Linear) Maximum Cg: 2" (1,200) -- 3" (2,900) -- 4" (4,300) -- 6" (6,600) -- 8" (13,000) Hydraulic Pressure: 1200 to 1700 psig Maximum Operating Pressure: 1700 psig Proof Pressure: 2800 psig Maximum Rod Seal Drain Pressure: 10 psig Maximum Return Pressure: 30 psig Trip Valve: Independent electric or hydraulic trip valve Trip Time: < 100 ms for up to 6” valve, < 200 ms for 8” or larger valve Trip Relay: Low Pressure (100 psi) -- High Pressure (1600 psi) -- Electric (125 VDC) Feedback: 0.7 to 3.5 Vrms LVDT feedback with 7.0 Vrms input RVDT feedback: Available for rotary valves; limit switch standard for aux/stop valves Servo Command: +/- 8 mA servo command; +/- 60 mA servo command options available Typical slew time: 0.7 +/- .03 second; 0.200 second slew time available for some models Failsafe: Close Overboard leakage: Zero leakage, as shipped Failure Mode: Spring type to drive valve to safe position with loss of signal (Fail Close) Component Certifications: Certified to North American and European standards for use in hazardous locations

Die Y&F 8641 Serie Integriertes Erdgas-Kraftstoffregelventil ist ein ausbalanciertes Doppelkolbenventil für die Gasturbinenkraftstoff Steuerung. The Y&F 8641 Series Integrated Natural Gas Fuel Control Valve Assembly is a balanced double-poppet flow control valve for gas turbine fuel control. With a known Cv curve, it can be operated via closed-loop position control by any modern turbine controller. Additionally, with a specially programmed Y&F 1100 Series Motor Controller, the 8641 is a retrofit replacement for the Y&F 7-5078 Hydraulic Actuator, loader and butterfly valve fuel control system on several Solar gas turbines (including Centaur, Taurus, and Mars). In this application there is no need to upgrade turbine controls; the Y&F system regulates flow based directly on the Compressor DIscharge Pressure and Setpoint signals. Power: 120 Volt DC Nominal (80-180 Volt DC Range). Also operates on AC Motor position: 4-20 mA command Minimum/Maximum pressure: 0-435 psi(g) Minimum/Maximum fuel temp: -40°C to +150°C (-40 to +302°F) Rated flow: 6000 pph Valve body material: Stainless Steel Compliance: NACE IV Slew Rate: < 100 Milliseconds Full Stroke Response time: < 20 Milliseconds Options: RF 600# ANSI Flanges, 24VDC Nominal, (18 - 30 Volt DC Range), also operates on AC Options 2: NACE available Ratings: CE (PED, ATEX: ZONE 1) NA (Class 1, Div 1) Certifications: UL / CE / CSA / ATEX / PED / MD / IP-65