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 modern engineering that function without the need for external energy. By harnessing the inherent power of the controlled medium, these valves deftly manage the valve core position through an integrated actuator. This dynamic system adjusts the flow area, expertly modulating the flow rate to ensure the pressure remains impeccably stable both before and after the valve.
These exceptional valves boast a seamless and responsive operation, impeccable sealing, and maintain pressure with minimal fluctuation. They have become indispensable in automatic control systems, excelling in applications requiring pressure reduction, stabilization, and relief for a variety of mediums such as gas, liquid, and steam across diverse industrial equipment.
Our company's product lineup in this series is categorized based on the valve core type into single-seat (P), sleeve (M), and double-seat (N) structures. Furthermore, the actuators are crafted into three distinct types: diaphragm type, piston type, and bellows type, each designed to meet specific operational needs with precision.
Operating Principle
For downstream pressure control (ZZYP-B type), the valve functions to reduce and stabilize pressure. As downstream pressure surpasses its set threshold, the valve closes, shutting off to prevent excess pressure. Conversely, when downstream pressure falls below the set threshold, the valve remains open, effectively compensating for any pressure deficit.
In the case of upstream pressure control (ZZYP-K type), the valve is deployed for safety pressure relief and stabilization. Surpassing the set upstream pressure prompts the valve to open fully, ensuring optimal pressure relief. Meanwhile, when upstream pressure is below the desired set point, the valve remains steadfastly closed.
Introducing the ZZYP-II series nitrogen sealing device, a cutting-edge self-operating micro-pressure control system independently crafted by our company. Designed to maintain a stable pressure of protective gas, typically nitrogen, at the apex of storage tanks, this device prevents direct contact between tank contents and air, mitigating risks of evaporation, oxidation, and enhancing container safety.Perfectly suited for gas sealing protection systems in expansive storage tanks, this product is lauded for its energy efficiency, responsiveness, and reliability. With straightforward operation and maintenance, it is a preferred choice in fields such as petroleum and chemical engineering, where safety and performance are paramount.
This innovative nitrogen sealing device operates without the need for external energy, negating the use of electricity or gas. Its design emphasizes convenience, energy conservation, and cost-effectiveness, making it a practical choice for modern industrial applications. The device allows seamless nitrogen supply and vent pressure settings, functioning flawlessly under continuous production conditions. It features a pressure detection diaphragm with a substantial effective area, minimal spring stiffness, and an ultra-sensitive operation to ensure smooth performance.
To safeguard the integrity of the storage tank, a breather valve is essential at the tank's summit. This valve is dedicated solely to safety, mitigating the frequent and detrimental wear of opening and closing nitrogen supply and vent valves common in conventional nitrogen sealing systems.Test and Detection Equipment
SNT Machinery (Qingdao) Co., Ltd. exemplifies unwavering commitment to excellence, meeting the rigorous benchmarks of ISO9001 and API SPECQ with precision. We meticulously craft and execute essential control methodologies, delivering sophisticated apparatuses like premium inspection and testing equipment, as well as high-performance process machinery. Our holistic strategy guarantees seamless integration and flawless compatibility across all stages-design, manufacturing, inspection, testing, installation, and service. Our exceptional toolset includes cutting-edge material chemical composition analysis technology, advanced imported metal spectrum analyzers, versatile universal tool microscopes, alongside robust mechanical performance re-inspection capabilities, ensuring top-tier operations.
Our expertise is further bolstered by a comprehensive suite of advanced nondestructive inspection equipment, including RT, UT, MT, and PT, supported by a team of certified nondestructive testing experts. We also feature a remarkable array of pressure test equipment in varied sizes, cutting-edge low-temperature test apparatus, and helium mass spectrometer leak detectors. Our sophisticated testing ensemble covers an extensive range of assessments: low emission helium mass spectrometer testing, rigorous high-pressure gas testing, precision vacuum testing, exhaustive fatigue testing, and meticulous degreasing testing, all devoted to upholding the highest quality standards.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. stands as a premier leader in the control valve industry, seamlessly blending manufacturing expertise, innovative design, comprehensive sales, and unparalleled service into one cohesive powerhouse. Nestled in the dynamic city of Qingdao, within Shandong province, our extensive 42,000-square-meter facility is outfitted with cutting-edge workshops and production equipment. Celebrated as a high-tech enterprise, SNT boasts independent intellectual property rights and has embraced avant-garde management and production techniques from global leaders. Our vibrant team of over 150 dedicated professionals includes 15% specialized R&D experts and 30% with graduate or higher degrees, underscoring our commitment to innovation and excellence. This formidable team has enabled us to produce an impressive array of top-tier valves for the petrochemical, oil, and coal chemical industries, reaching a remarkable sales milestone of nearly 100 billion in 2017.
SNT proudly holds the esteemed TS special equipment manufacturing certificate and prestigious ISO 9001 certification, alongside net qualification certificates from industry titans such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our dedication to technological innovation has earned us numerous national patents, reflecting our leading edge. We possess the extensive capability to design and manufacture a comprehensive range of valves adhering to ANSI, API, DIN, BS, and JIS standards. By blending the strengths of renowned global valve designs with our innovative research, we offer 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 expansive product portfolio includes 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 meticulously select 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 extensive working temperature spectrum (-196ºC to 1100ºC) ensures our valves cater to the diverse demands of varied industrial applications.
With state-of-the-art production technology management and a robust quality assurance system, SNT valves are widely utilized across petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our esteemed clientele comprises 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, underscoring the trust and reliability placed in our superior products.
Prioritizing our customers' success, we dedicate ourselves to crafting exceptional quality and a reputable brand. Our comprehensive quality assurance and exemplary after-sales systems ensure that SNT valves forge strong partnerships with our customers, fostering mutual prosperity and enduring relationships built on trust and excellence.
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.
