Basic Info.
Temperature
Ordinary Temperature
Certification
GS, CE, ISO9001
Media
Gas, Oil, Water, Acid
Medium Pressure
Above 6.4MPa
Nominal Pressure
Pn11-Pn42
Operating Pressure
Super-High Pressure
Body Rating
ANSI600lb-ANSI2500lb
Actuator Type
Diaphragm/Plunger/Bellows
Connection Type
Flange/Bw Butt Welded
Specification
110.00cm * 110.00cm * 90.00cm
Product Description
ZZY type self-operating pressure regulating valves are marvels of engineering that function without the need for any external energy source. They ingeniously harness the energy of the controlled medium itself, utilizing an actuator to precisely govern the valve core's position. This dynamic adjustment of the flow area allows for a seamless regulation of flow rate, ensuring a stable pressure is maintained before or after the valve, making it an indispensable component in pressure management.
Designed with meticulous attention to detail, these valves boast incredibly responsive operation, exemplary sealing capabilities, and exhibit minimal pressure fluctuations. Their versatility makes them ideal for a wide array of applications, offering reliable automatic control for pressure reduction, stabilization, or pressure relief across gas, liquid, and steam mediums. They are an excellent choice for various industrial settings, providing precision and reliability.
Our company's exceptional series of products includes a diverse range of configurations tailored to meet specific needs. These are categorized by valve core type into single-seat (P), sleeve (M), and double-seat (N) structures, and further classified by actuator type into diaphragm, piston, and bellows types. Such variety ensures that each valve is perfectly suited to its intended industrial application, delivering optimal performance.
Operating Principle
In the realm of downstream pressure control, the ZZYP-B type valve excels in pressure reduction and stabilization. When downstream pressure exceeds the preset threshold, the valve skillfully responds by gradually closing until it is shut off, ensuring stability. Conversely, if the downstream pressure falls below the desired level, the valve remains open, allowing for pressure compensation that maintains equilibrium with precision.
For upstream pressure management, the ZZYP-K type valve is the epitome of safety pressure relief and stabilization. In instances where the upstream pressure surpasses the predetermined set value, the valve intuitively opens wide, safeguarding the system. Should the upstream pressure drop below the target, the valve stays closed, maintaining system integrity and ensuring consistent performance.
The groundbreaking ZZYP-II series nitrogen sealing device, an innovation born from our company's expertise, is a self-operating micro-pressure control marvel designed to maintain a constant, protective gas pressure at the top of storage tanks. By preventing direct contact between the tank's contents and air, it effectively curtails material evaporation and oxidation, while ensuring the utmost container safety. This makes it an invaluable asset in preserving the integrity and quality of stored materials.Particularly adept for use in gas sealing protection systems of large storage tanks, this device is a paragon of energy efficiency, demonstrating unmatched sensitivity, reliability, and user-friendly operation. Its application extends across industries like petroleum and chemical engineering, where its precision and dependability are highly sought after, setting a new standard for industry excellence.
Remarkably, this system operates independently of external energy sources, requiring neither electricity nor gas. Its energy-saving, convenient, and cost-effective nature makes it a standout choice for those seeking efficiency without compromise, reinforcing its role as a leader in sustainable industrial solutions. The nitrogen sealing device streamlines the process of nitrogen supply and vent pressure setting, efficiently operating under continuous production conditions. With a large effective area on the pressure detection diaphragm and minimal spring stiffness, it operates with exceptional sensitivity, ensuring smooth and trouble-free performance that aligns with continuous industrial demands.
To safeguard storage tank integrity, it is imperative to install a breather valve atop the tank. This valve plays a crucial safety role, mitigating the wear and tear associated with frequent operation of nitrogen supply and vent valves. Thus, it serves as a protective measure, enhancing the longevity and reliability of the nitrogen sealing system, while ensuring consistent, reliable performance.Test and Detection Equipment
SNT Machinery (Qingdao) Co., Ltd. is steadfastly committed to upholding the rigorous benchmarks established by ISO9001 and API SPECQ. We meticulously engineer and deploy vital control strategies and intricate apparatuses, encompassing top-tier inspection and testing equipment, along with high-performance process machinery. Our holistic approach guarantees seamless integration and flawless compatibility across the entire spectrum of design, manufacturing, inspection, testing, installation, and service processes. Our outstanding suite of tools is equipped with state-of-the-art material chemical composition analysis technology, cutting-edge imported metal spectrum analyzers, flexible universal tool microscopes, and robust mechanical performance re-inspection capabilities, ensuring pinnacle operational efficiency and quality.
Augmenting our proficiency is a comprehensive suite of advanced nondestructive inspection equipment, including RT, UT, MT, PT, coupled with a team of certified experts in nondestructive testing. Furthermore, we possess an impressive array of pressure test equipment of various sizes, cutting-edge low-temperature test apparatus, helium mass spectrometer leak detectors, and an array of other sophisticated testing machinery. Our exhaustive testing lineup incorporates low emission helium mass spectrometer testing, stringent high-pressure gas testing, precise vacuum testing, extensive fatigue testing, and meticulous degreasing testing, all unwaveringly dedicated to upholding the highest quality standards.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. stands as a distinguished producer of control valves, seamlessly integrating manufacturing, design, sales, and service into a singular, cohesive operation. Situated in the vibrant city of Qingdao, Shandong province, our expansive 42,000-square-meter facility is outfitted with state-of-the-art workshops and production equipment. Recognized as a high-tech enterprise, we boast independent intellectual property rights and have adopted cutting-edge management and production methodologies from abroad. With a dynamic team of over 150 dedicated professionals, 15% of whom are specialized R&D experts and 30% hold graduate or higher degrees, we pride ourselves on innovation and excellence. Our high-quality production management team and pioneering research have enabled us to produce a vast range of top-tier valves for the petrochemical, oil, and coal chemical industries, achieving a sales milestone nearing 100 billion in 2017.
SNT has proudly obtained the TS special equipment manufacturing certificate and ISO 9001 certification, alongside the prestigious net qualification certificates from industry giants like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Moreover, we have earned numerous national patents for our technological advancements. Our extensive capabilities allow us to design and manufacture a comprehensive range of valves in compliance with ANSI, API, DIN, BS, and JIS standards. By merging the benefits of acclaimed global valve designs with our own innovative research, we now produce an extensive array of valves, including GLOBE, high-pressure boiler blow-down valves, high-performance butterfly valves, angle-regulating valves, eccentric rotary valves, and three-eccentric center butterfly valves.
Our product lineup extends to V ball valves, high wear-resistant ball valves, high pressure steam valves, micro-flow control valves, self-operated control valves, and cryogenic valves, available in manual, power-driven, pneumatic, and hydraulic drive forms. We utilize high-quality materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, with specifications ranging from 1/2" to 120", and operating pressures from ANSI 150# to 2500#. The broad working temperature span (-196ºC to 1100ºC) ensures our valves meet the demands of diverse industrial applications.
Equipped with advanced production technology management and a robust quality assurance system, SNT valves have been extensively utilized across petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our esteemed clientele includes leading enterprises such as SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Qingdao Refinery, SINOPEC Changling branch, and Jinan branch, among others.
Placing our customers' success at the forefront, we are committed to crafting exceptional quality and a reputable brand. Our comprehensive quality assurance and exemplary after-sales systems ensure that SNT valves collaborate with our customers to create mutual prosperity and lasting partnerships.
Address:
Shiao International 1602, Shinan District, Qingdao, Shandong, China
Business Type:
Manufacturer/Factory
Business Range:
Industrial Equipment & Components
Management System Certification:
ISO 9001, ISO 20000, IATF16949, HSE
Company Introduction:
SNT Machinery(Qingdao)Co., Ltd. Stands as a leading authority in control valve manufacturing. Based in the strategic hub of Qingdao, Shandong province, our sprawling 42, 000m² Facility is outfitted with cutting-edge workshops and advanced production equipment. As a high-tech enterprise, we take pride in owning independent intellectual property rights and implementing cutting-edge international management and production techniques. Our team of over 150 dedicated professionals includes 15% R&D specialists and 30% with graduate degrees or higher. This commitment to excellence and innovation enables us to produce a diverse array of top-tier valves, widely utilized across the petrochemical, oil, and coal chemical industries. In an impressive milestone, our sales neared 100 billion in 2017. SNT proudly holds the prestigious TS special equipment manufacturing certificate and ISO 9001 certification. We are honored to possess net qualification certificates from industry titans including SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technological prowess has garnered us multiple national patents. We design and manufacture an extensive range of valves adhering to stringent ANSI, API, DIN, BS, and JIS standards. By merging the finest attributes of world-renowned valves with our innovative R&D, we offer a comprehensive portfolio featuring GLOBE Valves, High-Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric Rotary Valves, and beyond.
Our product lineup showcases V Ball Valves, High Wear-resistant Ball Valves, High-Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, and Cryogenic Valves, available in manual, electric, pneumatic, and hydraulic driving forms. We use premium materials such as A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. Our specifications range from 1/2" to 120" in size, accommodating working pressures from ANSI 150# to 2500# and operating temperatures from -196º C to 1100º C. Utilizing our advanced production technology, precise management, and robust quality assurance systems, SNT valves earn trust across diverse industries including petrochemical, oil, steel, iron, paper manufacturing, and power stations. Our esteemed clientele features SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, among others. At SNT, we are devoted to maximizing customer profitability by consistently delivering superior quality and establishing a reputable brand. Our unwavering commitment to comprehensive quality assurance and exemplary after-sales services ensures that SNT valves cultivate enduring partnerships with our clients, driving mutual success and long-term prosperity.
