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 epitomize innovation by eliminating the need for external energy sources. Harnessing the innate energy from the controlled medium itself, these valves employ a sophisticated actuator to deftly adjust the position of the valve core. This strategic maneuver alters the flow area, enabling precise regulation of flow rates to ensure unwavering stability of pressure either before or after the valve.
Distinguished by their remarkable sensitivity, impeccable sealing, and minimal pressure fluctuations, these valves have become indispensable in the realm of automatic control. They excel in both pressure reduction and stabilization, as well as pressure relief and stabilization for gas, liquid, and steam mediums across a myriad of industrial applications.
Our company's exceptional product line is meticulously crafted into diverse configurations. Based on valve core typology, they are categorized into single-seat (P), sleeve (M), and double-seat (N) structures. Furthermore, actuator variations include the precision of diaphragm type, the robustness of piston type, and the adaptability of bellows type, catering to a wide array of specific application needs.
Operating Principle
In scenarios where downstream pressure control is essential (ZZYP-B type), the valve adeptly performs pressure reduction and stabilization functions. If the downstream pressure exceeds the pre-set desired value, the valve instinctively moves towards closure, ultimately sealing off. Conversely, when the downstream pressure falls beneath the desired threshold, the valve remains open to robustly counterbalance the pressure.
For upstream pressure control applications (ZZYP-K type), the valve functions as a pivotal safety mechanism for pressure relief and stabilization. Once the upstream pressure surpasses the predetermined value, the valve naturally gravitates towards opening, fully responding to pressure demands. In contrast, if the pressure is below the set limit, the valve remains closed, safeguarding the system's integrity.
The pioneering ZZYP-II series nitrogen sealing device represents our company's commitment to innovation in self-operating micro-pressure control systems. Its primary role is to sustain a stable pressure of protective gases, typically nitrogen, at the zenith of storage tanks, effectively shielding the contents from air exposure. This ingenious measure mitigates material evaporation, prevents oxidation, and ensures the utmost safety of the container.Particularly adept for large storage tank gas sealing systems, this product seamlessly marries energy efficiency with sensitive operation. Its reliable performance, combined with ease of operation and maintenance, makes it a sought-after solution in the petroleum and chemical engineering sectors.
By negating the need for external energy resources, this device operates autonomously, devoid of electricity or gas, thus epitomizing convenience, energy conservation, and cost-efficiency. The nitrogen sealing device is ingeniously designed for facile nitrogen supply and vent pressure adjustments, even amid continuous production processes. It features a pressure detection diaphragm boasting a large effective area, low spring stiffness for setting, an acute operational sensitivity, and smooth functionality.
To fortify storage tank safety, it's imperative to install a breather valve at the tank's apex. This valve's sole purpose is to act as a safety buffer, preemptively avoiding the recurrent and wear-inducing activities of nitrogen supply and vent valves characteristic of traditional nitrogen sealing devices. Test and Detection Equipment
SNT Machinery (Qingdao) Co., Ltd. proudly upholds the prestigious reputation of adhering to the esteemed standards of ISO9001 and API SPECQ. Our meticulous approach is reflected in the strategic design and implementation of vital control methodologies and sophisticated apparatuses. This includes our superior range of inspection and testing equipment, as well as our high-performance process machinery. Our integrated approach ensures a seamless and flawless experience across every phase of design, manufacturing, inspection, testing, installation, and service processes. Our exceptional array of tools boasts the latest in material chemical composition analysis technology, state-of-the-art imported metal spectrum analyzers, versatile universal tool microscopes, and robust mechanical performance re-inspection capabilities, ensuring unparalleled precision and reliability.
Our expertise is further amplified by a comprehensive suite of advanced nondestructive inspection equipment, including RT, UT, MT, PT, expertly managed by a team of certified inspectors specializing in nondestructive testing. Additionally, we are equipped with a remarkable variety of pressure test equipment in multiple sizes, cutting-edge low-temperature test apparatus, helium mass spectrometer leak detectors, and a range of other sophisticated testing machinery. Our exhaustive testing repertoire includes low emission helium mass spectrometer testing, rigorous high-pressure gas testing, precision vacuum testing, exhaustive fatigue testing, and meticulous degreasing testing-each committed to upholding the highest echelons of quality standards, ensuring every product meets the zenith of excellence.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. is a renowned leader in the production of control valves, expertly merging manufacturing, design, sales, and service into a unified, seamless operation. Nestled in the bustling city of Qingdao, Shandong province, our expansive 42,000-square-meter facility is equipped with cutting-edge workshops and the latest production equipment. As a high-tech enterprise, we pride ourselves on our independent intellectual property rights and the adoption of advanced management and production techniques from around the globe. Our dynamic team of over 150 professionals is dedicated to innovation and excellence, with 15% focused on research and development and 30% holding graduate or higher degrees. Our elite production management team and pioneering research efforts have empowered us to create a wide array of top-quality valves for the petrochemical, oil, and coal chemical industries, reaching an impressive sales milestone of nearly 100 billion in 2017.
SNT proudly holds the TS special equipment manufacturing certificate and ISO 9001 certification, along with prestigious network qualification certificates from industry titans such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. We have also secured numerous national patents for our technological innovations. Our extensive capabilities enable us to design and produce a comprehensive range of valves, fully compliant with ANSI, API, DIN, BS, and JIS standards. By blending the strengths of celebrated global valve designs with our own pioneering research, we have developed an extensive portfolio 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 lineup includes V ball valves, high wear-resistant ball valves, high-pressure steam valves, micro-flow control valves, self-operating control valves, and cryogenic valves, available in manual, power-driven, pneumatic, and hydraulic drive configurations. We use premium materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, with sizes ranging from 1/2" to 120", and operating pressures from ANSI 150# to 2500#. The broad operational temperature range (-196ºC to 1100ºC) ensures our valves meet the rigorous demands across a wide spectrum of industrial applications.
Boasting advanced production technology management and a robust quality assurance framework, SNT valves are widely employed across the petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our esteemed clientele features leading 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 Jinan branch, among numerous others.
Prioritizing our customers' success, we are dedicated to crafting exceptional quality and building a distinguished brand. Our comprehensive quality assurance and stellar 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.
