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
Introducing the ZZY type self-operating pressure regulating valves, a marvel of engineering that requires no external energy source to perform efficiently. These valves harness the inherent energy of the medium they control, using this as a power source to drive an actuator. This advanced mechanism adjusts the valve core position, dynamically altering the flow area. As a result, it finely tunes the flow rate to ensure stable pressure control, whether before or after the valve.
Our valves are renowned for their remarkably sensitive operation, outstanding sealing capabilities, and consistent minimal pressure fluctuation. These qualities make them invaluable across a wide spectrum of industrial applications. Perfect for automatic pressure reduction and stabilization, or pressure relief and stabilization, they seamlessly manage gas, liquid, and steam mediums within diverse industrial equipment.
Our sophisticated range of products in this series is meticulously categorized based on valve core design into single-seat (P), sleeve (M), and double-seat (N) structures. Furthermore, they are distinguished by the actuator type: diaphragm, piston, and bellows, each offering unique operational benefits tailored to specific needs.
Operating Principle
For downstream pressure control (ZZYP-B type), these valves are designed to proficiently handle pressure reduction and stabilization. Should the downstream pressure exceed the preset value, the valve instinctively closes, eventually shutting off to prevent excess pressure. Conversely, if the pressure falls below the set value, the valve remains open, ensuring pressure compensation is achieved seamlessly.
When tasked with upstream pressure management (ZZYP-K type), the valve functions as a stalwart guardian of safety, providing pressure relief and stabilization. As upstream pressure surpasses the desired set threshold, the valve springs open, offering full relief. When the pressure is beneath the set value, the valve stays closed, maintaining optimal conditions.
Our ZZYP-II series nitrogen sealing device stands as a pinnacle of innovation, representing a self-operating micro-pressure control system developed with precision by our team. This device is expertly utilized to sustain the constant pressure of protective gases, typically nitrogen, at the summit of storage tanks. This strategic design not only prevents the materials within from contacting air, thereby curbing evaporation and oxidation, but also ensures the safety and integrity of the container.Ideal for the gas sealing needs of expansive storage tanks, this product champions energy efficiency and sensitive operation. Its reliable performance and straightforward maintenance make it a preferred choice in the petroleum and chemical engineering industries. It's a solution that significantly elevates operational convenience.
With a design that thrives without external energy sources, this device operates independently of electricity or gas. Such a feature underscores its convenience, making it both energy-saving and remarkably cost-effective. The nitrogen sealing device shines with user-friendly features like easy nitrogen supply and vent pressure settings. It operates flawlessly under continuous production conditions, boasting a pressure detection diaphragm with an expansive effective area and a gently stiff setting spring. Its sensitive operation ensures smooth and reliable performance.
To safeguard your storage tank, installing a breather valve at the top is imperative. This essential safety component prevents the frequent, wear-prone operations of conventional nitrogen supply and vent valves, offering a robust solution for prolonged durability and efficacy.Test and Detection Equipment
SNT Machinery (Qingdao) Co., Ltd. proudly upholds the prestigious standards of ISO9001 and API SPECQ, reflecting our unwavering commitment to excellence. We masterfully craft and execute critical control methodologies and sophisticated equipment, incorporating premium inspection and testing tools alongside high-performance process machinery. Our holistic approach ensures seamless harmony and impeccable compatibility throughout the design, manufacturing, inspection, testing, installation, and service processes. Our impressive suite of tools includes state-of-the-art technology for material chemical composition analysis, advanced imported metal spectrum analyzers, versatile universal tool microscopes, and robust mechanical performance re-inspection capabilities, ensuring unparalleled precision.
To elevate our expertise, we offer an extensive array of cutting-edge nondestructive inspection equipment, such as RT, UT, MT, PT, supported by a team of certified inspectors. Furthermore, we feature a remarkable collection of pressure test equipment in various sizes, ultra-modern low-temperature test apparatus, helium mass spectrometer leak detectors, and other sophisticated testing tools. Our comprehensive testing lineup covers low emission helium mass spectrometer testing, rigorous high-pressure gas testing, precision vacuum testing, exhaustive fatigue testing, and meticulous degreasing testing, all steadfastly committed to upholding the highest quality standards.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. emerges as a premier authority in the production of control valves, harmoniously blending manufacturing, design, sales, and service into a unified, streamlined operation. Nestled in the vibrant metropolis of Qingdao, Shandong province, our sprawling 42,000-square-meter facility is replete with cutting-edge workshops and advanced production equipment. As a high-tech enterprise, we proudly possess independent intellectual property rights and have embraced advanced management and production techniques from around the globe. Our vibrant team comprises over 150 dedicated professionals, with 15% specializing in R&D and 30% holding graduate or higher degrees, underscoring our commitment to innovation and excellence. This synergy of high-quality production management and pioneering research empowers us to deliver an expansive range of superior valves for the petrochemical, oil, and coal chemical sectors, reaching an impressive sales milestone of nearly 100 billion in 2017.
SNT has triumphantly acquired the TS special equipment manufacturing certificate and ISO 9001 certification, in addition to prestigious net qualification certificates from industry titans like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Furthermore, we have secured numerous national patents for our technological innovations. Our expansive capabilities enable us to design and construct a diverse range of valves adhering to ANSI, API, DIN, BS, and JIS standards. By merging globally acclaimed valve designs with our unique research, we produce an extensive variety 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 encompasses 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 employ premium materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, offering specifications from 1/2" to 120", and operating pressures from ANSI 150# to 2500#. The wide operational temperature range (-196ºC to 1100ºC) ensures our valves are well-equipped to meet the rigorous demands of a myriad of industrial applications.
Empowered by advanced production technology management and a robust quality assurance system, SNT valves have seen widespread use across the petrochemical, oil, steel & iron, paper manufacturing, and power station sectors. Our esteemed clientele features industry-leading entities 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 many others.
At the heart of our mission is our customers' success; thus, we are steadfastly devoted to cultivating exceptional quality and an esteemed brand. Our comprehensive quality assurance and unmatched after-sales systems ensure that SNT valves foster mutual prosperity and enduring partnerships with our valued clientele.
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.
