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 boast an innovative design that eliminates the need for external energy sources. These intelligent valves harness the power of the controlled medium itself, ingeniously using it as a driving force. This allows the actuator to deftly maneuver the valve core position, adjusting the flow area with precision. This seamless operation ensures that the flow rate is meticulously controlled, resulting in stable pressure management either before or after the valve.
Characterized by their exceptionally sensitive operation, these valves offer unparalleled sealing capabilities and maintain pressure with minimal fluctuations. They are indispensable in various industrial sectors, excelling in the automatic control of pressure reduction, stabilization, and pressure relief for gas, liquid, and steam mediums. Their versatility makes them an essential component in a wide range of industrial applications.
Our meticulously crafted series of products are available in three distinct valve core structures: single-seat (P), sleeve (M), and double-seat (N). Moreover, they are equipped with one of three sophisticated actuator types: diaphragm, piston, and bellows. This comprehensive range caters to diverse operational needs, ensuring optimal performance in any setting.
Operating Principle
In scenarios where downstream pressure control is required (ZZYP-B type), the valve performs dual functions: pressure reduction and stabilization. If the downstream pressure exceeds the desired set value, the valve instinctively closes to mitigate excess pressure, eventually shutting off to prevent overpressure. Conversely, when downstream pressure falls below the set value, the valve remains open to maintain the desired pressure equilibrium.
For controlling upstream pressure (ZZYP-K type), the valve is engineered to provide safety pressure relief and stabilization. Should the upstream pressure surpass the predetermined set value, the valve instinctively opens, reaching a fully open state to release excess pressure safely. When the pressure is below the desired threshold, it remains closed to ensure stability.
Our pioneering ZZYP-II series nitrogen sealing device is a marvel of modern engineering, functioning as a self-operating micro-pressure control system. Expertly developed by our company, it's designed to maintain a consistent and protective pressure of nitrogen gas atop storage tanks. This prevents the materials within from encountering air, thus avoiding unwanted evaporation, oxidation, and ensuring the utmost safety of the container's contents.Perfectly suited for large storage tank gas sealing protection systems, this device offers exceptional energy efficiency, sensitive operation, and unfailing reliability. It's not only easy to operate but also requires minimal maintenance. Its applications span across crucial industries such as petroleum and chemical engineering, where it has become a staple for ensuring operational safety and efficiency.
Remarkably, this device operates independently of external energy sources, requiring no electricity or gas for its function. This makes it a paragon of convenience, energy conservation, and cost-effectiveness, revolutionizing efficiency in industrial operations. The nitrogen sealing device is ingeniously equipped for straightforward nitrogen supply and vent pressure settings, making it perfect for continuous production environments. Featuring a pressure detection diaphragm with a large effective area and low spring stiffness, it operates with enhanced sensitivity and remarkable smoothness, ensuring seamless performance.
To further bolster the safety of storage tanks, it is essential to install a breather valve at the top. This valve serves a critical safety function by preventing the frequent and often wear-inducing opening and closing of nitrogen supply and vent valves typically seen in conventional devices, therefore extending the longevity and reliability of the system.Test and Detection Equipment
SNT Machinery (Qingdao) Co., Ltd. is steadfast in our unwavering commitment to excellence, adhering meticulously to the high standards of ISO9001 and API SPECQ. We innovatively design and meticulously implement essential control methodologies along with sophisticated apparatuses. Our offerings include premium inspection and testing equipment as well as high-performance process machinery. By employing a holistic approach, we ensure seamless integration and flawless compatibility across all aspects of design, manufacturing, inspection, testing, installation, and service processes. Our exceptional toolkit features cutting-edge material chemical composition analysis technology, advanced imported metal spectrum analyzers, versatile universal tool microscopes, and robust mechanical performance re-inspection capabilities. This dedication guarantees superior quality and reliability in every facet of our operations.
Elevating our proficiency is a comprehensive suite of advanced nondestructive inspection equipment, encompassing RT, UT, MT, PT techniques, skillfully handled by our team of certified inspectors in nondestructive testing. Furthermore, we offer an impressive selection of pressure test equipment in various sizes, complemented by state-of-the-art low-temperature test apparatus and helium mass spectrometer leak detectors, alongside other sophisticated testing machinery. Our thorough testing capabilities cover low emission helium mass spectrometer testing, rigorous high-pressure gas testing, precision vacuum testing, exhaustive fatigue testing, and meticulous degreasing testing. All these efforts are aligned to uphold the pinnacle of quality standards, ensuring exceptional reliability and performance across our product range.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. stands as a premier and renowned producer of control valves, adeptly fusing manufacturing, design, sales, and service into one seamless, unified operation. Nestled in the bustling city of Qingdao, Shandong province, our expansive 42,000-square-meter headquarters is equipped with cutting-edge workshops and state-of-the-art production equipment. As a recognized high-tech enterprise, we are proud to possess independent intellectual property rights while embracing forward-thinking management and production techniques from around the globe. Our vibrant team comprises over 150 committed professionals, with 15% focused on research and development and 30% holding advanced degrees. This commitment to innovation and excellence enables us to craft a wide array of superior valves for the petrochemical, oil, and coal chemical sectors, culminating in a remarkable sales milestone approaching 100 billion in 2017.
SNT has rightfully earned the prestigious TS special equipment manufacturing certificate and ISO 9001 certification, along with net qualification accolades from industry titans such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. We have also secured multiple national patents for our cutting-edge technological innovations. Our expansive capabilities empower us to design and manufacture a comprehensive array of valves in accordance with ANSI, API, DIN, BS, and JIS standards. By seamlessly integrating the acclaimed benefits of global valve designs with our own pioneering research, we now offer an extensive lineup 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 diverse product portfolio 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, offered in manual, power-driven, pneumatic, and hydraulic drive configurations. Utilizing premium materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, we offer specifications ranging from 1/2" to 120", and operating pressures from ANSI 150# to 2500#. With a broad working temperature range from -196ºC to 1100ºC, our valves are engineered to meet the rigorous demands of diverse industrial applications.
Outfitted with advanced production technology management and a robust quality assurance framework, SNT valves have gained widespread recognition and are extensively utilized across industries including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Esteemed clientele 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, rely on our exceptional quality and service.
At SNT, placing our customers' success at the forefront is paramount. We are dedicated to crafting exceptional quality and cultivating a reputable brand. Our comprehensive quality assurance and exemplary after-sales systems ensure that SNT valves work hand-in-hand with our customers to foster mutual growth, prosperity, and enduring 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.
