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Products breif:
The inlet valve is used in conjunction with a check valve. 
After the high-pressure heater is filled with water, as the water pressure increases and reaches a specific level, the pressure differential across the stem cross-section of the inlet valve forces the valve to open automatically.
This allows steam to enter the heater for heating purposes. When the unit is shut down or the water supply is interrupted, the inlet valve closes pr

  •    Description   

    The inlet valve operates in tandem with a check valve. After the high-pressure heater is filled with water, the rising water pressure creates a differential force across the stem cross-section of the inlet valve. This force lifts the stem upward, raising the disc and opening the passage to allow water to enter the high-pressure heater, thereby commissioning the heater.

    In the event of a heater failure (e.g., tube rupture) where the water level exceeds the allowable limit, a level signal triggers an electrical device to activate the rapid-closure bypass valve. Condensate is then directed into the upper piston chamber of the inlet valve, forcing the piston downward. This action drives the disc down to shut off the inlet to the high-pressure heater while simultaneously opening the bypass, isolating the heater from the system. The full actuation time is 2 seconds.

     

      Key Features   

    • Automatic Pressure-Driven Operation: Opens via water pressure differential without external power.

    • Emergency Rapid Closure: Actuates within 2 seconds to prevent equipment damage during failures.

    • Fail-Safe Bypass Integration: Automatically redirects flow to bypass upon shutdown.

     

      Applications   

    • High-pressure heater systems in thermal and nuclear power plants.

    • Critical processes requiring rapid isolation during tube ruptures or overpressure events.

     

       Parameters   

    • Product Standards:  JB/T 3595, NB/T 47044, ASME B16.34
    • Pressure Rating: PN16-PN420 (150LB-2500LB)
    • Nominal Diameter: DN50-DN350 (2"-14")
    • Body Material: WCB, ZG20CrMo, Cr5Mo, ZG20CrMoV, 25#, 12Cr1MoV, ASTM A217 WC6, ASTM A217 WC9, ASTM A105, ASTM A182 F11, ASTM A182 F22
    • Operating Temperature:
    • WCB: -29°C ~ 425°C
    • Alloy Steel: -29°C ~ 540°C, -29°C ~ 570°C
    • Working Media: Water, Steam
    • Connection Type: Flanged, Welded
    • Actuation Type: Handwheel, Worm Gear, Pneumatic, Electric
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Products breif:
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2. COSMOSXpress software help engineer to optimize valve's structure.
3. Flow simulation simulate medium's flowing action, heat transfer process, and help engineer to decrease cavation, make less flowing resistance.
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Products breif:
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2. The main shaft has undergone quenching and nitriding treatment, featuring high heat resistance, wear resistance and excellent corrosion resistance.
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High Temp&Pressure Inlet Valve
Products breif:
The inlet valve is used in conjunction with a check valve.
After the high-pressure heater is filled with water, as the water pressure increases and reaches a specific level, the pressure differential across the stem cross-section of the inlet valve forces the valve to open automatically.
This allows steam to enter the heater for heating purposes. When the unit is shut down or the water supply is interrupted, the inlet valve closes pr
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Product Breif:
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Product Breif:
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2. The stem undergoes quenching and nitriding treatment, providing heat resistance, wear resistance, and high corrosion resistance.
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Products breif:
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Products breif:
1. The three-eccentric design provides instant contact or disconnection of the disc from the saddle, which guarantees zero wear and zero leakage.
2. The sealing ring is fully integrated into the drive, which allows to carry out replacement without dismantling the whole valve, the...
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