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 ingeniously designed to function without any external energy. By harnessing the energy of the controlled medium itself as a power source, these valves incorporate an actuator that expertly maneuvers the valve core position, altering the flow area. This precise adjustment allows for the seamless control of the flow rate, ensuring a stable pressure is maintained either before or after the valve.
Boasting sensitive operation, exceptional sealing capabilities, and minimal pressure fluctuation, these valves are a hallmark of sophistication. They are extensively utilized in the automatic control of pressure reduction and stabilization, as well as pressure relief and stabilization, for gas, liquid, and steam mediums across a myriad of industrial applications.
Our array of products within this series is meticulously categorized based on the valve core type into single-seat (P), sleeve (M), and double-seat (N) structures. Furthermore, they are classified by actuator type into diaphragm, piston, and bellows variants, offering a comprehensive selection tailored to diverse requirements.
Operating Principle.
For downstream pressure control (ZZYP-B type), the valve excels in pressure reduction and stabilization. Should the downstream pressure surpass the pre-set value (desired value), the valve instinctively moves towards closure, eventually shutting off. Conversely, if the downstream pressure drops below the set value, the valve remains open, adeptly adjusting to maintain the desired pressure.
In the realm of upstream pressure regulation (ZZYP-K type), the valve is dedicated to safety pressure relief and stabilization. When the upstream pressure exceeds the predetermined set value, the valve automatically opens fully, relieving excess pressure. If the upstream pressure falls beneath the set value, the valve stays closed, ensuring safety and stability.
Introducing the ZZYP-II series nitrogen sealing device, a cutting-edge, self-operating micro-pressure control system exclusively developed by our company. Its primary function is to uphold a constant protective gas pressure, typically nitrogen, at the top of storage tanks. This clever solution prevents direct contact between the stored materials and air, mitigating material evaporation and oxidation, thereby safeguarding container integrity.Ideal for gas sealing protection systems of extensive storage tanks, this product exemplifies energy efficiency, sensitive operation, and dependable performance, while being exceptionally easy to manage and maintain. It finds widespread application in industries such as petroleum and chemical engineering, proving its versatility and reliability.
Ingeniously designed to function autonomously, this device requires no external energy sources, operating without electricity or gas. Its convenience, energy-saving prowess, and cost-effectiveness position it as a highly desirable choice for modern industries. With its user-friendly nitrogen supply and vent pressure setting capabilities, the nitrogen sealing device operates effortlessly under continuous production conditions. The pressure detection diaphragm features a substantial effective area, while the setting spring's minimal stiffness ensures sensitive operation and smooth device functionality.
To guarantee the utmost safety of the storage tank, a breather valve is essential at the top of the tank. This breather valve serves a crucial safety purpose, preventing the frequent and wear-induced opening and closing of nitrogen supply and vent valves, a common issue in conventional nitrogen sealing devices.Test and Detection Equipment
SNT Machinery (Qingdao) Co., Ltd. proudly upholds the prestigious standards of ISO9001 and API SPECQ, showcasing our unwavering commitment to excellence. Our strategic approach is embodied in the meticulous design and implementation of essential control strategies and sophisticated apparatus. We are dedicated to delivering only the finest quality, with our lineup featuring premium inspection and testing equipment alongside high-performance process machinery. This comprehensive strategy ensures seamless integration and impeccable compatibility across all phases, including design, manufacturing, inspection, testing, installation, and service provisions. Our exceptional suite of tools boasts cutting-edge material chemical composition analysis technology, top-of-the-line imported metal spectrum analyzers, versatile universal tool microscopes, and robust re-inspection capabilities for mechanical performance.
Elevating our proficiency is an extensive collection of advanced nondestructive inspection equipment, featuring RT, UT, MT, PT, all operated by a team of certified nondestructive testing inspectors. Furthermore, we offer an impressive range of pressure test equipment in various dimensions, cutting-edge low-temperature test apparatus, and sophisticated helium mass spectrometer leak detectors, among other advanced testing machinery. Our rigorous testing lineup promises unparalleled quality assurance, with capabilities including low emission helium mass spectrometer testing, stringent high-pressure gas testing, precision-driven vacuum testing, comprehensive fatigue testing, and meticulous degreasing testing, all aimed at preserving the highest standards of product excellence.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. is a premier leader in the realm of control valves, expertly combining manufacturing, cutting-edge design, strategic sales, and exceptional service into one unified, streamlined operation. Nestled in the vibrant heart of Qingdao, Shandong province, our expansive 42,000-square-meter facility is a beacon of innovation, equipped with state-of-the-art workshops and the latest production equipment. As a high-tech enterprise, we proudly hold independent intellectual property rights and have embraced avant-garde management and production techniques from around the globe. Our team, a vibrant mix of over 150 passionate professionals, includes 15% specialized R&D experts and 30% with graduate-level or higher qualifications, underscoring our commitment to innovation and excellence. Pioneering in research and high-quality production management, we have crafted a diverse array of premium valves for industries such as petrochemical, oil, and coal chemical. Our success is reflected in reaching a remarkable sales milestone close to 100 billion in 2017.
SNT is distinguished by the prestigious TS special equipment manufacturing certificate and ISO 9001 certification, along with esteemed net qualification certificates from industry titans including SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our relentless pursuit of technological advancements has garnered numerous national patents. Our extensive capabilities empower us to design and manufacture an impressive range of valves that meet ANSI, API, DIN, BS, and JIS standards. By synthesizing the excellence of renowned global valve designs with our own innovative research, we have created an abundant variety of valves, featuring GLOBE, high-pressure boiler blow-down valves, high-performance butterfly valves, angle-regulating valves, eccentric rotary valves, and three-eccentric center butterfly valves.
Our versatile product range includes V ball valves, high wear-resistant ball valves, high pressure steam valves, micro-flow control valves, self-operated control valves, and cryogenic valves, tailored for manual, power-driven, pneumatic, and hydraulic drive configurations. We employ superior materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, offering specifications from 1/2" to 120", and operating pressures spanning ANSI 150# to 2500#. With a broad operational temperature range from -196ºC to 1100ºC, our valves are engineered to meet the rigorous demands of diverse industrial applications.
Empowered by cutting-edge production technology management and a robust quality assurance framework, SNT valves have been widely adopted across various sectors including petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our prestigious clientele consists of industry leaders such as the SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Qingdao Refinery, SINOPEC Changling branch, and Jinan branch, to name a few.
Our unwavering commitment to our customers' success drives our dedication to crafting products of exceptional quality and establishing a reputable brand. Our comprehensive quality assurance and exemplary after-sales systems ensure that SNT valves foster mutual prosperity and enduring partnerships with our valued customers.
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.
