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Home > Other > Custom Single port air exhaust valve ductile iron PN16 Manufacturers, Manufacturer
Custom Single port air exhaust valve ductile iron PN16 Manufacturers, Manufacturer
Custom Single port air exhaust valve ductile iron PN16 Manufacturers, Manufacturer
Custom Single port air exhaust valve ductile iron PN16 Manufacturers, Manufacturer
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Custom Single port air exhaust valve ductile iron PN16 Manufacturers, Manufacturer
Custom Single port air exhaust valve ductile iron PN16 Manufacturers, Manufacturer
Custom Single port air exhaust valve ductile iron PN16 Manufacturers, Manufacturer

Custom Single port air exhaust valve ductile iron PN16 Manufacturers, Manufacturer

Type：Flanage type

Series：QB1-10/16

Size: DN40-DN300/2”-12”

Pressure rating: PN6/PN10/PN16/PN25

Design standard: BS/API/DIN/JIS

Service: OEM&ODM

The single port exhaust valve is an automatic valve installed at the high point of a liquid pipeline, which automatically exhausts air, prevents air resistance, and can automatically air in under negative pressure. The structure is simple, economical and durable.

Application Scenarios

The flange single port vent valve mainly used at the high point of pipeline system with clean water, no impurities and low pressure, and the core is automatic air discharge and air resistance prevention.

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Product Description

Technical Specifications

Valve Type: Exhaust valve Structure: Single port
Standard: BS/API/DIN/JIS Workmanship: Investment casting
Sealing direction: Single-directional Sealing grade: Zero leakage
Temperature: -20°C < T < 120°C Operation: Self-starting
Single port air exhaust valve ductile iron PN16

Characteristics

This air valve adopted flange-connected, installed firmly and sealed well, suitable for large-diameter, medium and high-pressure pipelines, not easy to fall off and leak water.

Characteristics

Key Advantages

01
Firm connection and reliable sealing
The pressure is higher, and it is not easy to loosen and leak. Suitable for large-diameter, medium and high-pressure pipeline networks, safer than threaded exhaust valves.
02
High exhaust efficiency, no suffocation
Single port large channel, rapid and large exhaust during pipeline water injection. Continuous micro exhaust during operation to eliminate air resistance and water hammer and ensure stable water pressure.
03
Both exhaust and negative pressure protection
Normal exhaust; when the pipeline is under negative pressure, it will automatically air in to prevent the pipeline from being sucked and damaged.

Material & Packing

Component Material Details
Body, bonnet Cast iron HT200 / Stainless steel / Carbon steel
Floating ball 304 Stainless steel (Vent: H59 Steel / H59 brass)
Sealing ring NBR
Elastic screw A3
Packing Standard export wooden case packaging
Packing

Main Dimensions

Dimension Diagram
DN(mm) D D1 D2 Φ H
15956545135210
201057555135210
251158565135210
4014011580150210
150160125100150210

Frequently Asked Questions

What are the primary functions of this single port exhaust valve? It provides rapid exhaust during water injection, continuous micro-exhaust during operation to eliminate air resistance, and automatic air intake for negative pressure protection.
In what temperature range can this valve operate? The valve is designed to operate safely within a temperature range of -20°C to 120°C.
What materials are available for the valve body and bonnet? Available materials include Cast Iron HT200, Stainless Steel, and Carbon Steel to suit different industrial requirements.
Why is a flange connection preferred for this valve? Flange connections provide a firmer installation and more reliable sealing, making them ideal for large-diameter, medium, and high-pressure pipeline networks.
Does this valve prevent pipeline damage from vacuum conditions? Yes, when the pipeline is under negative pressure, the valve automatically draws in air to prevent the pipeline from being sucked flat or damaged.
What kind of sealing performance does it offer? The valve features a single-directional sealing design that achieves a zero-leakage sealing grade.

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