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  • Flange single port quick inlet and outlet valve
  • Flange single port quick inlet and outlet valve
  • Flange single port quick inlet and outlet valve
  • Flange single port quick inlet and outlet valve
  • Flange single port quick inlet and outlet valve
Flange single port quick inlet and outlet valve
Flange single port quick inlet and outlet valve
Flange single port quick inlet and outlet valve
Flange single port quick inlet and outlet valve
Flange single port quick inlet and outlet valve
+

Flange single port quick inlet and outlet valve

DN40-200
Product OverviewThe QB1 single port exhaust valve (single port inlet and exhaust valve) is a floating ball automatic exhaust valve. The valve body is made of ductile iron casting, with a deep blue anti-corrosion coating on the inside and outside of epoxy electrostatic spraying. It is equipped with a 304 stainless steel floating ball component and installed at the highest point of the water supply pipeline and the main outlet pipe of the pump room. It has dual functions of large exhaust and negative pressure air supply. Quickly evacuate the air inside the pipeline during the water filling stage to eliminate air resistance; When negative pressure is generated due to water or pump shutdown, air is automatically sucked in to prevent the pipeline from being damaged by negative pressure suction. It is a standard valve component for tap water, fire protection, and pump station pipelines, and can be combined with the front double valve check valve, Y-shaped filter, and water meter expansion filter to form a pump room valve group.Core technical parameters• Model: QB1-16Q• Nominal diameter: DN25 to DN200• Nominal pressure: PN10/PN16Valve body material: QT450-10 ductile iron• Coating: Internal and external epoxy resin spraying, meeting drinking water conditions• Float ball: 304 stainless steel float ballSealing element: Nitrile rubber NBRConnection standard: GB/T9113 flangeApplicable media: clean water, fire water, circulating water• Medium temperature: 0-80 ℃Installation location: highest point of pipeline, hump position, high point of pump outlet pipe sectionExecution standard: JB/T12386Product advantages1. One valve dual-use, when exhausting and replenishing air and water, it can quickly exhaust air with high flow rate, reduce air blockage, and lower the load on the water pump; The pipeline automatically intakes air in an instant under negative pressure, resisting negative pressure damage and protecting the pipeline and pipes.2. The structure is simple, the action is sensitive, and the single floating ball has a direct movement structure without complex levers. It can automatically open and close when the liquid level changes, with a quick response and less likely to get stuck or fail.3. Epoxy full coating anti-corrosion, water quality safety, strong adhesion of epoxy coating on the inner and outer walls, rust and precipitation prevention, stable long-term use in underground valve wells and wet pump rooms, suitable for clean water systems.4. The sealing is reliable, with a leak proof floating ball guiding and positioning design to prevent water flow from hitting the floating ball and causing accidental closure or leakage. The sealing performance is stable under pressure.5. Easy to maintain, the valve cover bolts are detachable, and can be opened to inspect and clean internal impurities, with a small maintenance workload.6. Compact size, low height, small footprint, and easy installation in narrow valve chambers.Application ScenariosHigh points of municipal water supply network, community water supply pump room, fire water supply main pipeline, water conservancy transmission pipeline, and circulating cooling water system.

Email:

lh@sfvalves.cn, sc@sfvalves.cn

WhatsApp:

+8619358036990, +8619358022290

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Related Product

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Products Category

Exhaust Valves

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  • 产品描述

  • Product Overview

    The QB1 single port exhaust valve (single port inlet and exhaust valve) is a floating ball automatic exhaust valve. The valve body is made of ductile iron casting, with a deep blue anti-corrosion coating on the inside and outside of epoxy electrostatic spraying. It is equipped with a 304 stainless steel floating ball component and installed at the highest point of the water supply pipeline and the main outlet pipe of the pump room. It has dual functions of large exhaust and negative pressure air supply. Quickly evacuate the air inside the pipeline during the water filling stage to eliminate air resistance; When negative pressure is generated due to water or pump shutdown, air is automatically sucked in to prevent the pipeline from being damaged by negative pressure suction. It is a standard valve component for tap water, fire protection, and pump station pipelines, and can be combined with the front double valve check valve, Y-shaped filter, and water meter expansion filter to form a pump room valve group.

    Core technical parameters

    • Model: QB1-16Q

    • Nominal diameter: DN25 to DN200

    • Nominal pressure: PN10/PN16

    Valve body material: QT450-10 ductile iron

    • Coating: Internal and external epoxy resin spraying, meeting drinking water conditions

    • Float ball: 304 stainless steel float ball

    Sealing element: Nitrile rubber NBR

    Connection standard: GB/T9113 flange

    Applicable media: clean water, fire water, circulating water

    • Medium temperature: 0-80 ℃

    Installation location: highest point of pipeline, hump position, high point of pump outlet pipe section

    Execution standard: JB/T12386

    Product advantages

    1. One valve dual-use, when exhausting and replenishing air and water, it can quickly exhaust air with high flow rate, reduce air blockage, and lower the load on the water pump; The pipeline automatically intakes air in an instant under negative pressure, resisting negative pressure damage and protecting the pipeline and pipes.

    2. The structure is simple, the action is sensitive, and the single floating ball has a direct movement structure without complex levers. It can automatically open and close when the liquid level changes, with a quick response and less likely to get stuck or fail.

    3. Epoxy full coating anti-corrosion, water quality safety, strong adhesion of epoxy coating on the inner and outer walls, rust and precipitation prevention, stable long-term use in underground valve wells and wet pump rooms, suitable for clean water systems.

    4. The sealing is reliable, with a leak proof floating ball guiding and positioning design to prevent water flow from hitting the floating ball and causing accidental closure or leakage. The sealing performance is stable under pressure.

    5. Easy to maintain, the valve cover bolts are detachable, and can be opened to inspect and clean internal impurities, with a small maintenance workload.

    6. Compact size, low height, small footprint, and easy installation in narrow valve chambers.

    Application Scenarios

    High points of municipal water supply network, community water supply pump room, fire water supply main pipeline, water conservancy transmission pipeline, and circulating cooling water system.

Contact Us

Send Email

lh@sfvalves.cn

sc@sfvalves.cn

WhatsApp

+8619358036990

+8619358022290

Phone/Wechat

+86-13932786363

+86-18632765063

Flange single port quick inlet and outlet valve

DN40-200
Product OverviewThe QB1 single port exhaust valve (single port inlet and exhaust valve) is a floating ball automatic exhaust valve. The valve body is made of ductile iron casting, with a deep blue anti-corrosion coating on the inside and outside of epoxy electrostatic spraying. It is equipped with a 304 stainless steel floating ball component and installed at the highest point of the water supply pipeline and the main outlet pipe of the pump room. It has dual functions of large exhaust and negative pressure air supply. Quickly evacuate the air inside the pipeline during the water filling stage to eliminate air resistance; When negative pressure is generated due to water or pump shutdown, air is automatically sucked in to prevent the pipeline from being damaged by negative pressure suction. It is a standard valve component for tap water, fire protection, and pump station pipelines, and can be combined with the front double valve check valve, Y-shaped filter, and water meter expansion filter to form a pump room valve group.Core technical parameters• Model: QB1-16Q• Nominal diameter: DN25 to DN200• Nominal pressure: PN10/PN16Valve body material: QT450-10 ductile iron• Coating: Internal and external epoxy resin spraying, meeting drinking water conditions• Float ball: 304 stainless steel float ballSealing element: Nitrile rubber NBRConnection standard: GB/T9113 flangeApplicable media: clean water, fire water, circulating water• Medium temperature: 0-80 ℃Installation location: highest point of pipeline, hump position, high point of pump outlet pipe sectionExecution standard: JB/T12386Product advantages1. One valve dual-use, when exhausting and replenishing air and water, it can quickly exhaust air with high flow rate, reduce air blockage, and lower the load on the water pump; The pipeline automatically intakes air in an instant under negative pressure, resisting negative pressure damage and protecting the pipeline and pipes.2. The structure is simple, the action is sensitive, and the single floating ball has a direct movement structure without complex levers. It can automatically open and close when the liquid level changes, with a quick response and less likely to get stuck or fail.3. Epoxy full coating anti-corrosion, water quality safety, strong adhesion of epoxy coating on the inner and outer walls, rust and precipitation prevention, stable long-term use in underground valve wells and wet pump rooms, suitable for clean water systems.4. The sealing is reliable, with a leak proof floating ball guiding and positioning design to prevent water flow from hitting the floating ball and causing accidental closure or leakage. The sealing performance is stable under pressure.5. Easy to maintain, the valve cover bolts are detachable, and can be opened to inspect and clean internal impurities, with a small maintenance workload.6. Compact size, low height, small footprint, and easy installation in narrow valve chambers.Application ScenariosHigh points of municipal water supply network, community water supply pump room, fire water supply main pipeline, water conservancy transmission pipeline, and circulating cooling water system.

Email:

lh@sfvalves.cn, sc@sfvalves.cn

WhatsApp:

+8619358036990, +8619358022290

Send Inquiry
Related Product

Contact HENGYA for Shipping, delivery, and payments information.

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