Changeover Valves are the product developed independently by our company based on oversea similar product structures and domestic service conditions (Patent No.: ZL 2011 2 0434286.6). This valve is used in conjunction with a safety valve to achieve online switching of safety valves.
The Changeover Valve is a product developed independently by our company based on similar products overseas and tailored to fulfill the needs of domestic customers (Patent No.: ZL 2011 2 0434286.6). When paired with a safety valve, it allows valves to be switched during operation.
Likewise, the Lockable Combination Valve is a new product developed independently by our company (Patent No.: ZL 2015 2 0719490.0). This device is composed of two Changeover Valves, one on the inlet side and a Changeover Valve on the outlet side as well with two identical safety valves installed in the middle; if necessary, the reducing joint is equipped to allow transitions. By utilizing universal couplings and worm gear structures, we're able to synchronize both Changeover Valves. When the inlet and outlet of either of the two safety valves are simultaneously closed, you're able to swap between the active safety valve and the backup safety valve. This is extremely useful for systems where there's backpressure at the outlet of the safety valve, and allows the safety valve to be dismantled or overhauled.
We deliver cutting-edge safety valves meticulously engineered to prevent dangerous overpressure scenarios and ensure uninterrupted operation in a wide array of industries. Our state-of-the-art solutions, crafted from durable materials and backed by rigorous testing, are designed to excel under extreme conditions—ranging from high-temperature processes to highly corrosive environments. With robust, reliable performance at their core, these valves provide peace of mind, minimize the risk of costly downtime, and safeguard both your personnel and critical equipment. Whether you operate a chemical processing plant, an oil refinery, or a power generation facility, our expert team is committed to customizing solutions that meet your specific needs. Ready to optimize your operations? Contact us today for a free quote or to learn more about our comprehensive valve solutions.
Our Spring-Loaded Pressure Relief Valves have the nozzle screwed directly into the body, allowing for easy maintenance. The use of high-quality materials such as Super-Duplex Alloys, Alloy 625, etc. also ensures robust operation.
Luofu pilot-operated pressure relief valves deliver advanced, reliable, and efficient solutions for overpressure protection.
The Changeover Valve is an independently developed product by our company, designed based on the structure of similar overseas products and tailored to meet domestic service conditions. (Patent No.: ZL 2011 2 0434286.6)
Compact and affordable, our Small-Orifice Pressure Relief Valves are available with various connection forms such as flanges or pipe threads.
These valves are specifically designed for saturated and superheated steam services on power boilers, superheaters, reheaters and other similar applications.
Used in situations where crystallizing is common and the viscosity is high, our jacketed versions of PSVs allow the body’s inlet and outlet body to be covered in a way that allows hot mediums to flow through the created space.
Fluorine-lined pressure relief valves are a technically reliable and cost-effective alternative to conventional pressure relief valves made of nickel-based materials. Our model in particular has broad chemical resistance, ensuring protection against corrosion.
We engineer state-of-the-art safety valves to protect your systems from hazardous overpressure conditions and maintain continuous productivity. Whether you operate industrial pipelines, petrochemical facilities, or power generation plants, our advanced designs and premium materials deliver dependable performance—even in the toughest environments. Built with a keen focus on quality, safety, and compliance, our valves minimize downtime, reduce maintenance expenses, and safeguard valuable equipment from unexpected pressure spikes. Ready to secure your operations? Contact us today for a free quote or to learn more about our comprehensive valve solutions.
0
Reportable Health and Safety Incidents
40+
Years of Industry Expertise
1,000+
(Sets) Production and Inspection Equipment
100,000+
(Sets) Pressure Relief Valves Produced Annually
We only provide high-quality safety valve products.
The company continuously innovates to improve valve performance, incorporating advanced materials and coatings to enhance durability and corrosion resistance, meanwhile, our facilities are equipped with advanced R&D labs and precision manufacturing tools.
Efficient assembly line production allows us to provide reasonable prices.
Using high-quality raw materials can effectively improve the service life of the labeling product.
Over 40 years of experience has granted our engineering and design team the insight to come up with rugged, quality products to meet our customer’s every need.
The company utilizes modern manufacturing equipment, including CNC machines and advanced testing facilities. It has a full- performance testing device capable of handling valves with a maximum diameter of DN250 and a maximum pressure of 10MPa. Our 65,000 sqm ASME-certified facility in Zhejiang utilizes CNC machining, automated assembly lines, and robotic welding to ensure micron-level accuracy
Luofu Valve Group maintains strict quality control standards, with certifications such as CE, ISO 9001, and ASME “UV” certification.
We also guarantee timely delivery and can offer a project management approach to ensure customer satisfaction.
Luofu Valve Group offers customized solutions to meet specific customer requirements, working closely with clients to design and manufacture valves tailored to their needs and can provide timely support to customers around the world.
Our company provides comprehensive after- sales services, including free on- site technical guidance, installation, and commissioning.
Address: Dong’ou Industrial Zone, Oubei Town, Yongjia County, Zhejiang Province, China
Zip Code: 325105
Office Hour: 9:00 – 18:00 Beijing Time, Mon-Fri
Reviews
As a petrochemical product manufacturer, CNOOC Oil & Gas (Taizhou) Petrochemical Co., Ltd. is committed to ensuring the continuity and stability of production and operation of each unit. In order to ensure the annual production target, under the correct leadership of our company's leaders, all staff have carefully organized and worked hard. The company's production work is being carried out in an orderly manner according to the plan, and the four major controls are fully controllable. Your company made outstanding contributions to us in the supply in the fourth quarter of 2017, which reflects the good strategic partnership between your company and CNOOC Oil & Gas (Taizhou) Petrochemical Co., Ltd. Here, we would like to express our sincere gratitude to the leaders and relevant staff of your company for their strong support.
CNOOC Oil & Gas (Taizhou) Petrochemical Co., Ltd.
Luofu is trustworthy in terms of product quality, price, delivery time and after-sales service.
PetroChina Guangxi Petrochemical Company
Our company is the EPC contractor of 476 system unit safety valves for the ZhongKe (Guangdong) Refinery & Petrochemical Company limited Refining and Chemical Integration Project. We use the safety valve products of Luofu Valve Group Co., Ltd. After quality inspection, they are stable and run well.
Sinopec Luoyang Engineering Co., Ltd.
Thank you Luofu Valve for your cooperation all the time! You have given us all-round support in safety valve technology selection and pre-sales service.
Moon Environment Technology Co., Ltd.
As an OEM supplier, your company always puts product quality and innovation at the top of the enterprise development, which is impressive. The Safety Valve and Changeover Valve Lockable Combination used on our company's compressors are of reliable quality and timely delivery!
ShenGu Group