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  • Model 7300 End-of-Line Pressure/Vacuum Valve
Model 7300 End-of-Line Pressure/Vacuum Valve
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  • Product Details

  • Operating Principle:

    Under normal operating conditions, both the exhaust and intake valve disc assemblies remain closed to seal the steam. When internal tank pressure increases, the exhaust valve disc opens to release steam and relieve pressure. When the tank experiences vacuum accumulation, the intake valve disc opens to release the vacuum.

    Applications:

    • Large oil depot storage and transportation centers
    • Chemical plant liquid raw material storage areas
    • Large-scale gas storage facilities
    • Gas cabinets
    • Distillation units
    • Low-pressure gas pipeline systems
    • Port terminal storage and transportation systems

    Construction Materials:

    Components

    Materials

    Other Materials

    Housing

    Corrosion-resistanthigh-strength non-metal

    Aluminum alloy

    Carbon steel

    304 stainless steel

    316L stainless steel

    Hastelloy alloy

    Valve Disc/Base

    Hastelloy alloy

    304 stainless steel

    316L stainless steel

    Hastelloy alloy

    (customizable upon customer request)

    Valve Diaphragm

    FEPTeflon

    Nitrile rubber

    Fluorocarbon rubber

    Cover

    Aluminum

    Carbon steel

    304 stainless steel

    316L stainless steel

    Counterweight and Spring

    Lead

    Galvanized carbon steel

    Austenitic stainless steel

    Coated steel counterweights

    Hastelloy alloy

    Note 1:Replacement and maintenance of the valve disc, counterweight, and spring should be carried out by personnel dispatched by the manufacturer or under remote guidance from the manufacturer.

    Valve Installation Range

    Model

    Inlet Connection Size

    mm/in.

    Pressure

    KPa(G)

    Vacuum

    KPa(G)

    Model 7310

    Counterweight-loaded

    DN50~DN300/（2"~12"）

    0.2~6.9

    -0.2~-4.3

    Model 7320

    Vacuum spring-loaded

    DN50~DN300/（2"~12"）

    0.2~6.9

    -4.3~-82

    Model 7330

    High pressure spring-loaded

    DN50~DN300/（2"~12"）

    6.9~103.4

    -0.2~-4.3

    Model 7340

    High performance spring-loaded

    DN50~DN300/（2"~12"）

    6.9~103.4

    -4.3~-82

    7300 Series Model 7310/7330 End-of-Line Pressure/Vacuum Valve Size Chart

    Model

    Size

    Dimensions

    Connection Bolts

    Inlet Connection Size

    in.(mm)

    Total Height

    H(mm)

    Total Width

    W(mm)

    Center Width

    W1(mm)

    Hole

    QTY

    Thread

    Type

    7310

    /

    7330

    2"

    2"(DN50)

    346/405

    410

    281

    4

    M16

    3"

    3"(DN80)

    370/435

    410

    281

    4

    M16

    4"

    4"(DN100)

    465/545

    580

    400

    8

    M16

    6"

    6"(DN150)

    530/590

    590

    410

    8

    M20

    8"

    8"(DN200)

    615/680

    928

    632

    8

    M20

    10"

    10"(DN250)

    675/715

    928

    432

    12

    M24

    12"

    12"(DN300)

    775/855

    992

    700

    12

    M24

    7300 Series Model 7320/7340 End-of-Line Pressure/Vacuum Valve Size Chart

    Model

    Size

    Dimensions

    Connection Bolts

    Inlet Connection Size

    in.(mm)

    Total Height

    H(mm)

    Total Width

    W(mm)

    Center Width

    W1(mm)

    Hole

    QTY

    Thread

    Type

    7320

    /

    7340

    2"

    2"(DN50)

    346/405

    410

    281

    4

    M16

    3"

    3"(DN80)

    370/435

    410

    281

    4

    M16

    4"

    4"(DN100)

    465/545

    580

    400

    8

    M16

    6"

    6"(DN150)

    530/590

    590

    410

    8

    M20

    8"

    8"(DN200)

    615/680

    928

    632

    8

    M20

    10"

    10"(DN250)

    675/715

    928

    432

    12

    M24

    12"

    12"(DN300)

    775/855

    992

    700

    12

    M24

    ※ The actual product dimensions may vary from those listed in the table above. The allowable tolerance is ±1" (25mm). For products with dimensions beyond those listed in the table, please contact the manufacturer for further assistance.

     

Product application field

Pharmaceuticals

Metallurgy

Food Processing

Petrochemical

Coal Energy

Environmental Protection

Chemical

Electricity

Related Products

Our advantage

Trusted Partner

The company's business also covers the third-level professional contracting of construction mechanical and electrical installation engineering, which can provide customers with one-stop service for product development and design, manufacturing, installation and construction, and after-sales guidance.

Perfect quality system

The company has established a perfect quality management system in strict accordance with domestic and foreign industry standards. China Taian Branch cooperates closely with universities and research institutes to jointly promote technological innovation.

24-hour professional service

With professional after-sales and sincere service as the criterion, 24 hours a day, all year round to provide customers with better quality and more professional service.

Model 7300 End-of-Line Pressure/Vacuum Valve

The Model 7300 end-of-line pressure-vacuum valve is normally installed parallel to the top of the storage tank to prevent excessive accumulation of positive pressure or vacuum within the system, maintaining the system's pressure within a safe operating range. When the tank expels steam due to factors such as filling or temperature increase, the valve allows the steam to be released into the atmosphere; conversely, when the tank experiences vacuum due to draining or temperature decrease, the external air forces the valve disc open to enter the tank, preventing collapse.

Parameter characteristics

Applicable sizes: 2" (DN50) to 12" (DN300)

Precision sliding rail design ensures timely valve disc opening and reduces wear

Use of advanced high-performance special materials for key components

Precision spring-loaded components

Valve disc and base are calibrated according to API 2000 standards for optimal performance

Advanced testing platform provides reliable flow rate curves and leakage detection reports

Modular valve body components design for easy and simple maintenance

FEP coating

Optional design for intake (vacuum) port connection

Keywords

Product Query

The main products are: special bursting disc safety device, flameless relief device, explosion-proof valve, dust suppression device, flame arrester, breathing valve, emergency relief valve, etc.

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