Are you looking for the best pilot operated check valve factories in China? If so, you’re in the right place. In this article, we’ll compare some of the top manufacturers, highlighting their strengths, certifications, and the quality of their products to help you make an informed decision.
Single pilot-check valve – Mobile Hydraulics
Product Details: The single pilot-operated check valve is used to block the cylinder in one direction. The flow is free in one direction and blocked in the reverse direction until pilot pressure is applied. This valve is designed for mobile hydraulic systems and is typically used in applications where flow needs to be controlled in a specific direction.
Pros:
– Allows free flow in one direction while blocking i…
– Suitable for mobile hydraulic systems, providing d…
– Can be used to block the actuator in both directio…
Cons:
– Requires pilot pressure to override the check func…
– May not be suitable for applications where continu…
Double Pilot Operated Check Valve
Product Details: The Double Pilot Operated Check Valve is designed to block the actuator in both directions. Flow is free in one direction and blocked in the reverse direction until pilot pressure is applied. This valve is typically used in hydraulic systems to control the flow of fluid and prevent backflow. It is manufactured with high-quality materials and is available at competitive prices.
Pros:
– Allows free flow in one direction while blocking r…
– High-quality materials ensure durability and relia…
– Competitive pricing makes it an economical choice.
Cons:
– Requires pilot pressure to open in the reverse dir…
– May require additional maintenance due to the pilo…
Pilot Operated Check Valve – Series CPOM | China – Parker NA
Product Details: Parker’s CPOM2BBV pilot operated check valve is part of the CPOM series. It features a sandwich design for easy configuration in stack systems. Key specifications include: Operation Type – Pilot, Poppet Style – B, Cracking Pressure – 1 bar, Actuation Type – Hydraulic Pressure, and Maximum Operating Pressure – 350 bar.
Pros:
– Easy configuration of stack systems due to sandwic…
– Good price-performance ratio.
– High maximum operating pressure of 350 bar.
Cons:
– No specific cons mentioned in the provided sources…
– Requires hydraulic pressure for actuation, which m…
Single Pilot Operated Check Valves
Product Details: Single Pilot Operated Check Valves are used to block the cylinder in one direction. The flow is free in one direction and blocked in the reverse direction until pilot pressure is applied. These valves are typically used in hydraulic systems to control the flow of fluid.
Pros:
– Allows free flow in one direction while blocking i…
– Effective in controlling the flow of fluid in hydr…
Cons:
– Requires pilot pressure to change the flow directi…
– May require additional components to manage pilot…
Double Pilot Operated Check Valve
Dual Pilot Operated Check Valve
Product Details: The dual pilot operated check valve is a cartridge type, made of high strength steel with a guided poppet for realizable low leakage performance. It uses dual hydraulic pilots to control the valve. This valve is typically used for load holding when the pump is off, allowing flow in one direction while preventing it in the other.
Pros:
– Provides precise hydraulic flow control
– Low leakage performance due to the guided poppet d…
– Effective load holding when the pump is off
Cons:
– Requires dual hydraulic pilots, which can add comp…
– No specific mention of cost-effectiveness or ease…
Check Valves
Product Details: The check valves offered by Jinan Longli Hydraulic Device Co., Ltd. include various types such as hydraulic cartridge check valves, pilot operated check valves, and poppet type check valves. The hydraulic cartridge check valves are screw-in, cartridge-style valves used for blocking or load-holding applications. Pilot operated check valves allow free flow in one direction and prevent reverse flow until operated by a pilot signal. The Z2S16 isolator valve is a releasable check valve in sandwich plate design, used for leakage-free blocking of actuator ports. The SV and SL valves are poppet type hydraulic pilot operated check valves that can be
opened to permit flow in the reverse direction.
Pros:
– Allow free flow in one direction while preventing…
– Can be operated by a pilot signal for controlled r…
– Available in various designs such as cartridge-sty…
– Suitable for different applications including bloc…
Cons:
– May require additional components or signals for o…
– Specific installation requirements, such as screw-…
– Limited to hydraulic systems and may not be suitab…
Original Factory Excavator Hydraulic Control Valve – HPLK …
Hydraulic Pilot Operated Check Valve – Cepai
Product Details: The Hydraulic Pilot Operated Check Valve is manufactured by CEPAI and is known for its superior quality and competitive price. It features strict quality management procedures and is designed by an experienced technical crew. The valve is used in various industries and is supplied globally to regions such as Europe, America, Australia, and more. It is part of a product line that includes Metal Two-Piece Floating Ball Valves, Vr Plug Wellhead, Mud Gate Valves, and Positive Choke Valves.
Pros:
– Superior quality
– Competitive price
– Strict quality management procedures
– Global supply network
– Experienced technical crew
Cons:
– No specific technical specifications or performanc…
– No information on maintenance or repair requiremen…
China Pilot Controlled Check Valve Manufacturer and …
Product Details: The Pilot Controlled Check Valve is designed to regulate the flow of fluids in hydraulic systems with precision. It allows flow in one direction while preventing reverse flow, eliminating concerns of pressure loss and potential damage. The valve is meticulously engineered to provide accurate control and exceptional response times, ensuring optimal system performance. It is crafted with durable materials and advanced manufacturing techniques, guaranteeing the highest quality and longevity. The valve meets international standards and industry requirements, making it suitable for industrial, construction, or agricultural applications.
Pros:
– Enhances fluid control systems with precision
– Prevents reverse flow and pressure loss
– Provides accurate control and exceptional response…
– Ensures optimal system performance
– Crafted with durable materials for longevity
– Meets international standards and industry require…
Comparison Table
| Company | Product Details | Pros | Cons | Website |
|---|---|---|---|---|
| Single pilot-check valve – Mobile Hydraulics | The single pilot-operated check valve is used to block the cylinder in one direction. The flow is fr… | – Allows free flow in one direction while blocking i… – Suitable for mobile hydraulic systems, pro… | – Requires pilot pressure to override the check func… – May not be suitable for applications where… | www.hoyea.com |
| Double Pilot Operated Check Valve | The Double Pilot Operated Check Valve is designed to block the actuator in both directions. Flow is… | – Allows free flow in one direction while blocking r… – High-quality materials ensure durability a… | – Requires pilot pressure to open in the reverse dir… – May require additional maintenance due to… | www.sjhydraulic.com |
| Pilot Operated Check Valve – Series CPOM | China – Parker NA | Parker’s CPOM2BBV pilot operated check valve is part of the CPOM series. It features a sandwich desi… | – Easy configuration of stack systems due to sandwic… – Good price-performance ratio. – High maxim… | – No specific cons mentioned in the provided sources… – Requires hydraulic pressure for actuation,… |
| Single Pilot Operated Check Valves | Single Pilot Operated Check Valves are used to block the cylinder in one direction. The flow is free… | – Allows free flow in one direction while blocking i… – Effective in controlling the flow of fluid… | – Requires pilot pressure to change the flow directi… – May require additional components to manag… | www.sjhydraulic.com |
| Double Pilot Operated Check Valve | www.hoyea.com | |||
| Dual Pilot Operated Check Valve | The dual pilot operated check valve is a cartridge type, made of high strength steel with a guided p… | – Provides precise hydraulic flow control – Low leakage performance due to the guided poppet d… -… | – Requires dual hydraulic pilots, which can add comp… – No specific mention of cost-effectiveness… | www.hydraulicmanufacture.com |
| Check Valves | The check valves offered by Jinan Longli Hydraulic Device Co., Ltd. include various types such as hy… | – Allow free flow in one direction while preventing… – Can be operated by a pilot signal for contr… | – May require additional components or signals for o… – Specific installation requirements, such a… | www.longlihydro.com |
| Original Factory Excavator Hydraulic Control Valve – HPLK … | www.hanshang-hydraulic.com | |||
| Hydraulic Pilot Operated Check Valve – Cepai | The Hydraulic Pilot Operated Check Valve is manufactured by CEPAI and is known for its superior qual… | – Superior quality – Competitive price – Strict quality management procedures – Global supply networ… | – No specific technical specifications or performanc… – No information on maintenance or repair re… | www.cepaivalves.com |
| China Pilot Controlled Check Valve Manufacturer and … | The Pilot Controlled Check Valve is designed to regulate the flow of fluids in hydraulic systems wit… | – Enhances fluid control systems with precision – Prevents reverse flow and pressure loss – Provides… | www.flagup-hydraulic.com |
Frequently Asked Questions (FAQs)
What is the primary function of a pilot operated check valve?
?
A pilot operated check valve is designed to control the flow of fluids in one direction while preventing reverse flow. It allows free flow in one direction but blocks the flow in the reverse direction until sufficient pilot pressure is applied. This ensures smooth and efficient operations in hydraulic systems, preventing pressure loss and potential damage.
What materials are typically used in the construction of pilot operated check valves in China?
?
Pilot operated check valves from Chinese manufacturers are often made with high-quality materials. The valve body is usually made of zinc-plated steel, while internal parts are hardened and ground steel for durability. Seals are typically made of BUNA N standard materials to ensure leak-free performance.
How do pilot operated check valves work in hydraulic systems?
?
In hydraulic systems, pilot operated check valves work by allowing flow from one port to another (e.g., from V1 to C1) without any restriction. However, flow in the reverse direction is blocked until a pilot pressure is applied at a specific port (e.g., X port), which then pushes the poppet from its seat, enabling reverse flow. This mechanism ensures precise control over fluid flow.
What are the common applications of pilot operated check valves?
?
Pilot operated check valves are widely used in various industries, including industrial, construction, and agricultural sectors. They are particularly useful in applications involving hydraulic cylinders, where they help to block the actuator in one or both directions until pilot pressure is applied. This makes them ideal for managing fluid flow in complex hydraulic systems.
How do Chinese manufacturers ensure the quality of pilot operated check valves?
?
Chinese manufacturers of pilot operated check valves adhere to strict quality control measures to ensure their products meet international standards. They use advanced manufacturing techniques, precision machining, and hardening processes to guarantee high-quality and leak-free performance. Additionally, they often follow oil cleanliness standards such as NAS1638 and ISO4406 to ensure the valves operate reliably in various environments.
