Swing Type Check Valve is a non-return valve with a hinged disc mechanism that prevents reverse flow in pipeline systems.
Technical Specifications
|
Parameter |
Specification |
|
Product Type |
Swing Type Check Valve / Swing Check Valve / Non-Return Valve |
|
Valve Design |
Hinged Disc Swing Check Valve |
|
Nominal Size |
DN50–DN1200 / 2"–48" (Customized sizes available) |
|
Pressure Rating |
Class 150–2500 / PN10–PN420 |
|
Body Material |
Carbon Steel, LTCS, Stainless Steel, Duplex Stainless Steel, Alloy Steel |
|
Connection Type |
Flanged, Butt Weld End |
|
Design Standard |
Designed according to API 6D, ASME B16.34, DIN, BS, JIS, GB, or customer-specific requirements |
|
Face-to-Face Standard |
ASME B16.10 / Applicable standards |
|
Testing Standard |
API 598 or applicable customer inspection requirements |
|
Temperature Range |
According to material selection and service conditions |
|
Operation Type |
Automatic Operation by Pipeline Flow Pressure |
|
Installation |
Horizontal installation is commonly used; vertical installation is available depending on valve design and flow direction requirements. |
Key Components
Valve Body
Main pressure-retaining component forming the primary valve structure and providing pipeline connection points.
Disc Assembly
Internal moving component responsible for controlling flow passage according to pipeline flow conditions.
Hinge Pin & Arm
Mechanical connection assembly supporting the disc installation and allowing controlled movement within the valve body.
Valve Seat
Sealing surface designed to contact with the disc and maintain sealing performance to prevent leakage when the valve is closed.
Bolted Bonnet
Removable cover structure providing access to internal valve components for inspection and maintenance.
Core Features
Cast Valve Body Construction
Cast body construction provides strength and durability for industrial pipeline service under different pressure and temperature conditions.
Bolted Bonnet Design
Bolted bonnet design allows convenient access to internal components for inspection and maintenance.
Automatic Operation Without External Actuation
The valve operates automatically through flow pressure changes without requiring external power or control systems.
Low Pressure Loss Flow Passage
Optimized flow passage design helps reduce turbulence and pressure loss in high-flow pipeline systems.
Reverse Flow Protection
The valve prevents backflow and helps maintain proper pipeline flow direction during operation.
Reduced Closing Impact Design
Controlled disc movement helps reduce closing impact and potential pressure surge risks.
Typical Applications
Pump Discharge Pipeline Protection
Installed downstream of pumps to prevent reverse rotation and protect pumping equipment.
Oil & Gas Pipeline Systems
Used in crude oil, refined oil, and natural gas pipelines requiring automatic flow direction control, including transmission pipelines, compressor stations, and terminal facilities.
Petrochemical Process Systems
Applied in process pipelines requiring controlled fluid movement and stable operation.
Power Plant Circulation Systems
Suitable for cooling water and auxiliary pipeline systems requiring flow reversal protection.
Water Supply & Treatment Facilities
Used in water transmission, wastewater treatment, and pumping station systems.
Large-Diameter Industrial Pipelines
Applied in high-flow pipeline systems requiring low flow resistance and dependable check performance.
Customization Options
Valve Size & Connection Configuration
Customized valve sizes and end connections, including flange and welded configurations.
Pressure Class & Design Requirements
Valve pressure class and design configuration selected according to operating conditions and project requirements.
Body & Internal Material Selection
Material options include carbon steel, LTCS, stainless steel, duplex stainless steel, and alloy steel.
Seat & Sealing Configuration
Seat and sealing materials selected according to medium characteristics and service conditions.
Disc & Hinge Assembly Configuration
Disc design and hinge structure adjusted according to flow conditions and installation requirements.
Surface Coating Options
Surface coating options include epoxy coating and corrosion protection treatments according to operating environments.
Why Choose Us
Highly Experienced
Over 25 years of industrial valve manufacturing experience supporting global pipeline and industrial applications.
Valve Production Capability
Manufacturing gate, globe, check, ball, butterfly, slab gate, and forged valves with carbon steel, LTCS, stainless steel, duplex stainless steel, and alloy steel material capabilities.
Standards & Quality Control
PORO follows structured quality control procedures throughout the manufacturing process, including incoming material verification, PMI testing, dimensional inspection, pressure testing, and final inspection before shipment release.
Global Supply
Operating from a 23,186㎡ manufacturing facility and supplying industrial valve solutions across ASEAN, Europe, South America, the Middle East, and Africa.
FAQ
Q: What information is required to select a Swing Type Check Valve?
A: Valve selection requires information including size, pressure rating, temperature, medium characteristics, flow conditions, connection type, and installation requirements to determine the suitable valve configuration.
Q: What is the difference between a Swing Type Check Valve and a Wafer Check Valve?
A: A Swing Type Check Valve uses a hinged disc mechanism, while a wafer check valve has a more compact design installed between flanges. Swing check valves are commonly used for larger pipeline systems requiring robust construction and lower flow resistance.
Q: How do I choose the correct material for a Swing Type Check Valve?
A: Material selection depends on the operating medium, temperature, pressure, corrosion conditions, and service environment. Common options include carbon steel, stainless steel, duplex stainless steel, and alloy steel.
Q: What causes Swing Type Check Valve failure during operation?
A: Common causes include incorrect selection, unsuitable installation, excessive flow conditions, improper material selection, or insufficient maintenance. Proper engineering evaluation helps improve valve reliability.
Q: Can Swing Type Check Valves be used in pipelines with frequent flow changes?
A: Yes. Valve selection should consider flow velocity, pressure fluctuations, and closing characteristics to ensure stable performance under changing operating conditions.
Q: How can I reduce pressure loss when selecting a Swing Type Check Valve?
A: Pressure loss can be reduced by selecting the correct valve size, flow passage design, and configuration according to pipeline flow conditions.
Q: What is the service life of a Swing Type Check Valve?
A: Service life depends on material selection, operating conditions, installation quality, and maintenance. Properly selected valves can provide reliable long-term operation.
Q: Can Swing Type Check Valves be used for high temperature or corrosive media?
A: Yes. Material selection, sealing design, and valve configuration can be adjusted according to temperature, corrosion resistance, and pressure requirements.
Q: What documents are available when purchasing Swing Type Check Valves?
A: Available documents may include material certificates, inspection reports, pressure test records, dimensional reports, and other quality documentation according to project requirements.
Q: How do I select a reliable Swing Type Check Valve manufacturer?
A: A reliable manufacturer should have valve manufacturing experience, quality control procedures, engineering support capability, quality documentation, and the ability to meet project-specific requirements.
Q: Does PORO provide engineering support for Swing Type Check Valve selection?
A: Yes. PORO provides engineering support to help customers evaluate valve selection based on pressure, temperature, medium characteristics, flow conditions, installation requirements, and project specifications.
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