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
The ZZY type self-operating pressure regulating valves are an innovative marvel that eliminates the need for external energy sources. Harnessing the energy of the controlled medium itself, these valves incorporate an advanced actuator mechanism to adjust the valve core position masterfully. By altering the flow area, they adeptly modulate the flow rate, ensuring stable pressure levels either before or after the valve.
These valves are distinguished by their exceptionally sensitive operation, impeccable sealing capabilities, and minimal pressure fluctuation, making them an ideal solution for automatic control systems. They excel in reducing and stabilizing pressure or providing relief and stabilization for gas, liquid, and steam mediums across a wide spectrum of industrial equipment.
Our company's exquisite product line in this series features a versatile range of designs. Options include single-seat (P), sleeve (M), and double-seat (N) structures, tailored to complement the valve core type. The series also offers three actuator types: diaphragm, piston, and bellows, providing a comprehensive selection to meet diverse operational needs.
Operating Principle
In applications where downstream pressure control is required (such as with the ZZYP-B type), the function is twofold: pressure reduction and stabilization. If the downstream pressure exceeds the set value, the valve instinctively moves towards closure, ultimately shutting off. Conversely, when the pressure dips below the target value, the valve remains open to maintain optimal pressure.
For upstream pressure control (ZZYP-K type), the valve operates as a guardian for safety pressure relief and stabilization. Upon exceeding the set pressure, it promptly opens and fully engages to relieve excess pressure. If the upstream pressure falls below the desired level, the valve remains closed, ensuring stability and safety.
The ZZYP-II series nitrogen sealing device, a cutting-edge, self-operating micro-pressure control masterpiece, is proudly developed and manufactured by our company. It is expertly designed to maintain a consistent pressure of protective gas-typically nitrogen-at the apex of storage tanks. This ingenious design prevents direct exposure of internal materials to air, counteracting evaporation, oxidation, and ensuring the utmost safety of containers.Particularly suited for gas sealing protection systems in vast storage tanks, this product is synonymous with energy efficiency, precise operation, unwavering performance, and effortless maintenance. It has become a staple in industries like petroleum and chemical engineering, where reliability and efficiency are paramount.
Revolutionizing convenience, this device operates independently of external energy sources, eschewing the need for electricity or gas. This feature makes it an exemplary choice for those seeking convenience, energy savings, and cost-effectiveness in their operations. Engineered for seamless nitrogen supply and precise vent pressure setting, the nitrogen sealing device is designed to thrive under continuous production conditions. The pressure detection diaphragm's expansive effective area, coupled with its minimal setting spring stiffness, ensures sensitive operation and a smooth, reliable performance.
To bolster the safety of the storage tank, the installation of a breather valve at the tank's summit is obligatory. This valve's singular purpose is to safeguard against frequent, wear-inducing operations of nitrogen supply and vent valves found in traditional sealing systems, thereby enhancing the overall longevity and efficacy of nitrogen sealing devices.Test and Detection Equipment
SNT Machinery (Qingdao) Co., Ltd. stands resolute in our commitment to the prestigious benchmarks of ISO9001 and API SPECQ. With strategic precision, we craft and implement essential control methodologies alongside sophisticated apparatuses. Our offerings include premium inspection and testing equipment as well as superior process machinery. Embracing a holistic approach, we ensure flawless integration and compatibility across every stage, from design and manufacturing to inspection, testing, installation, and service. Our exceptional toolkit is equipped with state-of-the-art material chemical composition analysis technology, advanced imported metal spectrum analyzers, versatile universal tool microscopes, and robust mechanical performance re-inspection capabilities.
Augmenting our expertise, we present an expansive array of cutting-edge nondestructive inspection equipment, including RT, UT, MT, PT, supported by a team of certified nondestructive testing inspectors. Additionally, our collection boasts an impressive selection of pressure test equipment in various sizes, cutting-edge low-temperature test apparatus, helium mass spectrometer leak detectors, and other sophisticated testing machinery. Our exhaustive testing portfolio includes low emission helium mass spectrometer testing, rigorous high-pressure gas testing, precision vacuum testing, comprehensive fatigue testing, and meticulous degreasing testing, all committed to sustaining the pinnacle of quality standards.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. emerges as a beacon of excellence in the control valve industry, uniquely blending cutting-edge design, seamless manufacturing, strategic sales, and unparalleled service into one unified operation. Nestled in the dynamic city of Qingdao, Shandong province, our expansive 42,000-square-meter facility bristles with state-of-the-art workshops and sophisticated production equipment. As a high-tech powerhouse, SNT Machinery prides itself on owning independent intellectual property and has embraced the most advanced management and production techniques from around the globe. Our vibrant team of over 150 committed professionals includes 15% specialized R&D experts and 30% with graduate or higher degrees, driving our ethos of relentless innovation and excellence. Through robust production management and groundbreaking research, we craft an extensive array of premium valves tailored for the petrochemical, oil, and coal chemical industries, achieving a remarkable sales milestone of nearly 100 billion in 2017.
Earning the prestigious TS special equipment manufacturing certificate and ISO 9001 certification, SNT is further distinguished by net qualification certificates from industry leaders such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our prowess in technological innovation is underscored by numerous national patents. Our capabilities empower us to design and manufacture a wide spectrum of valves that adhere to ANSI, API, DIN, BS, and JIS standards. By synergizing world-renowned valve design principles with our proprietary innovative research, we now proudly offer a vast selection 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 extensive product range features V ball valves, high wear-resistant ball valves, high pressure steam valves, micro-flow control valves, self-operated control valves, and cryogenic valves. These are available in manual, power-driven, pneumatic, and hydraulic drive configurations, leveraging top-tier materials such as A216WCB, A217 WC6/WC9, and A351 CF8/CF8M/CF3/CF3M. We offer specifications from 1/2" to an impressive 120", and our valves are built to withstand operating pressures from ANSI 150# to 2500#. With a broad operational temperature range of -196ºC to 1100ºC, our valves are engineered to meet rigorous demands across diverse industrial applications.
Harnessing advanced production technology management and a formidable quality assurance system, SNT valves have become indispensable in industries such as petrochemical, oil, steel & iron, paper manufacturing, and power stations. Our prestigious clientele includes industry titans like 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.
With our customers' triumph at the heart of our mission, we are unwavering in our dedication to crafting superior quality and establishing a reputable brand. Our meticulous quality assurance and outstanding after-sales service ensure that SNT valves not only meet but exceed expectations, fostering mutual success and enduring partnerships with our valued clients.
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.
