Lift Type Check Valve is an automatic non-return valve designed to prevent reverse flow in industrial pipelines. It uses an axially guided piston disc that opens under forward pressure and closes when flow stops or reverses.
Technical Specifications
|
Item |
Specification |
|
Valve Type |
Lift Type Check Valve |
|
Operating Principle |
Axial guided piston disc movement |
|
Body Design |
Cast body with bolted bonnet |
|
Size Range |
Customized according to requirements |
|
Pressure Rating |
ASME Class 150–2500 / PN16–PN420 |
|
End Connection |
RF, RTJ, customized flange standards |
|
Body Materials |
Carbon Steel, LTCS, Stainless Steel, Duplex Steel, Alloy Steel |
|
Medium |
Water, Oil, Gas, Steam, Chemical Fluids |
|
Design Standards |
API, ANSI, DIN, BS, JIS, GB |
|
Testing |
Hydrostatic and leakage testing |
Key Features
Axial Guided Disc Movement
The piston disc moves along the valve axis to provide controlled opening and closing during flow changes.
Cast Body Construction
The cast valve body with bolted bonnet design supports pressure resistance and maintenance access.
Automatic Reverse Flow Protection
The disc closes through gravity and back pressure to prevent reverse circulation after flow interruption.
Flexible Sealing Configuration
Seat and sealing designs can be selected according to medium, pressure, temperature, and service requirements.
Typical Applications
Pump Discharge Protection Systems
Installed on pump outlet pipelines to prevent reverse flow and protect pumps and connected equipment after shutdown.
Oil & Gas Pipeline Systems
Applied in crude oil, natural gas, and process pipelines requiring automatic one-way flow protection.
Chemical Processing Units
Used in chemical production systems where maintaining directional flow stability supports continuous process operation.
Power Generation Facilities
Suitable for boiler feedwater, cooling water, and auxiliary pipeline systems requiring automatic flow protection.
Water Treatment & Supply Systems
Installed in water transfer and treatment pipelines to maintain flow direction and prevent reverse circulation.
Industrial Fluid Transfer Equipment
Used in pumps, compressors, pressure systems, and fluid handling equipment requiring non-return protection.
Marine & Shipbuilding Systems
Applied in shipboard piping systems for fuel, cooling, and process fluid applications.
Customization Options
Valve Size & Pressure Rating
Customized valve dimensions and pressure ratings according to pipeline design, flow requirements, and operating conditions.
Body & Trim Material Selection
Material configurations selected according to fluid characteristics, temperature conditions, and corrosion requirements.
End Connection Configuration
Available with customized flange standards, connection dimensions, and installation requirements.
Valve Seat & Sealing Design
Sealing components can be configured according to sealing performance requirements, medium characteristics, and service conditions.
Disc & Internal Component Design
Internal components can be optimized according to flow characteristics, operating conditions, and maintenance requirements.
Special Application Requirements
Customized configurations available for specific flow conditions, installation environments, and industrial applications.
Quality Inspection & Testing
PORO performs inspection and testing throughout the manufacturing process to verify material quality, dimensional accuracy, pressure integrity, and sealing performance.
Inspection activities include:
Material Verification
Material grade and traceability are verified according to applicable requirements.
Dimensional Inspection
Critical dimensions, flange connections, and component accuracy are inspected before assembly.
Pressure Testing
Shell and seat leakage tests are performed according to applicable standards.
Assembly Inspection
Internal components, sealing parts, and valve operation are checked before shipment.
Final Quality Inspection
Valve appearance, marking, documentation, and shipment readiness are reviewed before delivery.
Third-party inspection and additional quality documentation can be arranged according to customer and project requirements.
Manufacturing Capability
Highly Experienced
Established in 1997, PORO provides over 25 years of experience in industrial valve manufacturing for global industrial applications.
Controlled Manufacturing Process
Manufacturing covers material verification, machining inspection, component assembly, and final inspection to maintain product consistency throughout production.
Comprehensive Valve Manufacturing Range
Producing gate valves, globe valves, check valves, ball valves, butterfly valves, slab gate valves, and forged valves for different pipeline systems.
Engineering Standard Compatibility
Supporting valve manufacturing according to ANSI, DIN, BS, JIS, and GB requirements for different industrial applications.
Multi-Material Capability
Supporting carbon steel, LTCS, stainless steel, duplex stainless steel, and alloy steel materials according to project requirements.
Packaging & Delivery
Protective Valve Packaging
Valves are packed with protective measures to prevent surface damage, impact, and contamination during transportation.
Port Protection
Valve ends are covered to prevent dust, moisture, and foreign particles from entering the flow passage during storage and shipment.
Secure Export Packing
Packing methods are selected according to valve size, weight, and transportation requirements to support safe international delivery.
Product Identification & Marking
Product labels and packing marks are provided for order identification, storage management, and installation preparation.
FAQ
Q: What information is needed to select a Lift Type Check Valve?
A: Provide medium type, pressure, temperature, flow direction, installation position, valve size, and applicable standards.
Q: Can Lift Type Check Valves be customized for high-pressure applications?
A: Yes. Valve design, materials, pressure class, and sealing configuration can be adjusted according to project requirements.
Q: What inspection documents are available for export orders?
A: Typical documents include material certificates, test reports, inspection records, and project-specific quality documents.
Q: What is the typical production process for Lift Type Check Valves?
A: Production normally includes material inspection, machining, assembly, pressure testing, and final quality verification.
Q: Can PORO provide valves according to API or ANSI requirements?
A: Yes. Manufacturing can follow API, ANSI, DIN, BS, JIS, GB, and customer-specific requirements.
Q: What materials are recommended for corrosive applications?
A: Material selection depends on the chemical composition, temperature, pressure, and service environment. Stainless steel, duplex steel, and alloy materials are commonly used options.
Q: Are third-party inspections available?
A: Yes. Third-party inspection arrangements can be supported according to customer or project requirements.
Q: What is the difference between standard and customized Lift Type Check Valves?
A: Standard valves follow common specifications, while customized valves are engineered for special pressure ratings, materials, dimensions, or operating conditions.
Q: Can Lift Type Check Valves be used in steam systems?
A: Yes. Suitable designs and materials can be selected for steam applications based on temperature and pressure conditions.
Q: What should be provided when requesting a valve quotation?
A: A quotation request should include valve size, quantity, operating medium, pressure, temperature, material requirements, standards, and delivery requirements.
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