Wholesale Composite exhaust valve quick exhaust 2-4 inch flange Suppliers, Manufacturer

Type:Flanage type

Series:CARX-10/16

Size: DN40-DN300/2”-12”

Pressure rating: PN6/PN10/PN16/PN25

Design standard: BS/API/DIN/JIS

Service: OEM&ODM

The compound exhaust valve is a high-efficiency automatic air release device widely used in water supply pipelines, long-distance water transmission, and industrial circulating water systems. It integrates large-capacity exhaust and micro-exhaust functions in one compact structure.

Application Scenarios

The compound air valves are essential automatic control components widely applied in various industrial pipeline systems. They are mainly installed at high points, long sloped sections and pump outlets of water transmission, cooling water, chemical processing and industrial circulating water pipelines.

Product Description

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Technical Specifications

Valve Type: Exhaust valve Structure: Compound
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
Exhaust Valve Overview
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Product Characteristics

The compound exhaust valve is designed with a dual-function structure, combining high-speed large-volume air release and continuous micro-exhaust in one unit. It ensures efficient air discharge during pipeline commissioning and stable operation under working pressure.

Valve Characteristics
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Key Advantages

1. Integrated Dual Function

Combining high-speed massive exhaust and continuous micro exhaust, this equipment replaces two traditional valves, reducing procurement costs and saving installation space. It effectively lowers air resistance and pump energy consumption.

2. Intelligent Negative Pressure Protection

Automatically enters air during pump stops or sudden pressure drops to prevent pipeline deformation. It restrains water hammer phenomena, extending system service life and reducing maintenance costs.

3. High Durability & Low Maintenance

Constructed with a ductile iron body and stainless steel float for superior corrosion resistance. Features a composite seal for zero leakage and supports online maintenance without emptying the pipeline.

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Material Specification

Component Material
BodyDuctile iron
BonnetDuctile iron
FloatStainless steel
Lever SupportStainless steel
LeverAluminum Steel
StopperAluminum Steel
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Main Dimensions

Dimension Diagram
DN D D1 H N−Φd
PN10 PN16 PN10 PN16 PN10 PN16
501651651251252804−Φ194−Φ19
802002001601603658−Φ198−Φ19
1002202201801803958−Φ198−Φ19
1502852852402404858−Φ238−Φ23
2003403402952955708−Φ2312−Φ23
25039540535035565512−Φ2312−Φ28
30044546040041075012−Φ2312−Φ28
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Packing & Delivery

Standard export wooden case packaging ensures safe transportation and protection of the valves during transit.

Export Packing

Frequently Asked Questions

What is the main function of a compound exhaust valve?
It combines high-speed large-volume air release during pipeline filling and continuous micro-exhaust of accumulated air during normal pressurized operation into a single unit.
Does this valve protect against vacuum conditions?
Yes, it features intelligent negative pressure protection that quickly allows air into the system to prevent pipeline collapse or deformation when pumping stops.
What materials are used for the floating ball?
The floating ball is made of high-quality stainless steel, providing excellent corrosion resistance and long-term durability in various industrial media.
Is it possible to maintain the valve while the system is online?
Yes, the design supports online maintenance without the need to empty the entire pipeline, which significantly reduces downtime and labor costs.
What international standards do these valves meet?
Our compound exhaust valves are manufactured according to BS, API, DIN, and JIS standards to ensure global compatibility and high-performance reliability.
What is the temperature range for these valves?
The standard working temperature range for these valves is between -20°C and 120°C, making them suitable for a wide variety of environments.

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