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 the need for external energy sources. They harness the innate energy of the controlled medium itself, which acts as a power source. This smart mechanism involves an actuator that deftly manipulates the valve core's position, effectively altering the flow area. As a result, the flow rate is meticulously adjusted, ensuring the pressure is stabilized either before or after the valve, as required.
These valves boast a highly sensitive operation, ensuring excellent sealing and minimal pressure fluctuation. Their versatility and reliability make them indispensable in automatic control systems for pressure reduction and stabilization, or pressure relief and stabilization of gas, liquid, and steam. They are extensively utilized across a broad spectrum of industrial equipment, offering unparalleled performance and efficiency.
Our company's esteemed series of products is categorized based on the valve core type into single-seat (P), sleeve (M), and double-seat (N) structures. Additionally, the series is classified by actuator type: diaphragm, piston, and bellows. This diverse range of configurations ensures that we cater to various industrial needs with precision and expertise.
Operating Principle
In applications where downstream pressure control is paramount (ZZYP-B type), these valves perform dual roles of pressure reduction and stabilization. Should the downstream pressure surpass the predetermined set value, the valve instinctively begins to close, ultimately shutting off if necessary. Conversely, if the pressure is lower than the set value, the valve maintains an open state, thereby compensating and stabilizing the pressure effectively.
When tasked with controlling upstream pressure (ZZYP-K type), these valves excel in providing safety pressure relief and stabilization. If the upstream pressure exceeds the set threshold, the valve automatically opens, fully engaging to relieve pressure. On the other hand, if the upstream pressure is below the desired set value, the valve remains closed, ensuring safety and stability in the system.
The ZZYP-II series nitrogen sealing device represents a pioneering self-operating micro-pressure control system, meticulously developed and crafted by our company. Its primary role is to maintain consistent pressure of protective gas-typically nitrogen-at the top of storage tanks. This prevents direct contact between the stored materials and air, thereby mitigating risks of evaporation and oxidation, while ensuring the utmost safety of the container.Ideal for gas sealing protection systems in vast storage tanks, this product embodies energy efficiency, responsive operation, reliable performance, and straightforward maintenance. Its widespread application in industries such as petroleum and chemical engineering underscores its critical role as a dependable and efficient solution in today's industrial landscape.
Remarkably, this device operates independently of external energy sources, negating the need for electricity or gas. This attribute not only enhances convenience but also translates to significant energy savings and cost-effectiveness, making it a practical choice for modern industry. Designed for seamless integration into continuous production, the nitrogen sealing device allows for straightforward adjustments to nitrogen supply and vent pressure settings. Boasting a pressure detection diaphragm with a large effective area and a spring with low stiffness, it operates with heightened sensitivity, ensuring smooth and efficient functionality.
For optimal safety of the storage tank, it is imperative to install a breather valve at the tank's apex. The breather valve serves a crucial safety function, eliminating the frequent, wear-induced operation typically associated with conventional nitrogen sealing devices' supply and vent valves, thus extending the longevity of the system.Test and Detection Equipment
SNT Machinery (Qingdao) Co., Ltd. proudly upholds the prestigious standards of ISO9001 and API SPECQ. Our commitment to excellence drives us to meticulously craft and integrate vital control strategies and state-of-the-art equipment. We offer a distinguished selection of premium inspection and testing equipment along with high-performance process machinery. Our holistic methodology ensures perfect synergy and unmatched compatibility throughout the design, manufacturing, inspection, testing, installation, and service processes. Our impressive suite of tools includes innovative material chemical composition analysis technology, cutting-edge imported metal spectrum analyzers, versatile universal tool microscopes, and robust mechanical performance re-inspection capabilities.
Strengthening our expertise, we present a comprehensive suite of advanced nondestructive inspection equipment, encompassing RT, UT, MT, PT methods, all supported by a skilled team of certified nondestructive testing inspectors. Furthermore, we showcase an extraordinary range of pressure test equipment in various sizes, along with cutting-edge low-temperature test apparatus, helium mass spectrometer leak detectors, and other sophisticated testing machinery. Our extensive testing portfolio includes low emission helium mass spectrometer testing, rigorous high-pressure gas testing, precision vacuum testing, exhaustive fatigue testing, and meticulous degreasing testing, all passionately committed to upholding the highest quality standards.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. is a renowned leader in the production of control valves, skillfully merging manufacturing, design, sales, and service into one smooth and efficient operation. Nestled in the energetic city of Qingdao, Shandong province, our sprawling 42,000-square-meter facility is equipped with cutting-edge workshops and the finest production equipment. As a high-tech enterprise, we proudly hold independent intellectual property rights and have embraced advanced management and production techniques from around the globe. Empowered by a dynamic team of over 150 passionate professionals, where 15% are dedicated R&D specialists and 30% possess graduate or higher qualifications, we are committed to innovation and excellence. Our superior production management team and trailblazing research efforts have allowed us to manufacture an extensive array of premium valves tailored for the petrochemical, oil, and coal chemical sectors, reaching an impressive sales milestone of nearly 100 billion in 2017.
SNT proudly carries the TS special equipment manufacturing certificate and the esteemed ISO 9001 certification, along with net qualification certificates from industry titans such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technological prowess has earned us numerous national patents. We possess the unmatched capability to design and manufacture a broad spectrum of valves adhering to ANSI, API, DIN, BS, and JIS standards. By seamlessly blending the advantages of internationally acclaimed valve designs with our own pioneering research, we have curated an extensive selection of valves including GLOBE valves, high-pressure boiler blow-down valves, high-performance butterfly valves, angle-regulating valves, eccentric rotary valves, and the sophisticated three-eccentric center butterfly valves.
Our expansive 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, available in manual, power-driven, pneumatic, and hydraulic drive variations. Crafted from top-tier materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, our valves are available in specifications spanning from 1/2" to 120", and can withstand operating pressures from ANSI 150# to 2500#. Our valves' extensive working temperature range (-196ºC to 1100ºC) ensures they are perfectly suited to meet the diverse demands of various industrial applications.
Backed by advanced production technology management and a strong quality assurance system, SNT valves enjoy widespread use across the petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our esteemed clientele includes powerhouse enterprises 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 the Jinan branch, among many others.
Placing the success of our customers at the pinnacle of our priorities, we are dedicated to crafting products of exceptional quality and fostering a reputable brand. Our comprehensive quality assurance and outstanding after-sales service systems ensure that SNT valves work in tandem with our customers to forge mutual 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.
