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 ingeniously eliminate the need for external energy sources. By harnessing the energy of the controlled medium, these valves effortlessly function with a built-in actuator that exquisitely adjusts the valve core position. This sophisticated mechanism alters the flow area, thus finely tuning the flow rate to ensure the pressure before or after the valve remains perfectly stable.
These valves stand out with their remarkably sensitive operation, outstanding sealing capabilities, and minimal pressure fluctuations, making them the go-to choice for automatic pressure control. They excel in reducing and stabilizing pressure or providing pressure relief for gas, liquid, and steam mediums across various industrial equipment, ensuring optimal performance and efficiency.
Our company's production of this series boasts a diverse range of designs: single-seat (P), sleeve (M), and double-seat (N) structures tailored to the valve core type. Furthermore, they offer three distinct actuator types: diaphragm, piston, and bellows. This comprehensive approach ensures a perfect fit for any application, providing unrivaled versatility and reliability.
Operating Principle
When the ZZYP-B type is deployed for downstream pressure control, its dual roles are pressure reduction and stabilization. Should the downstream pressure surpass the desired set value, the valve instinctively moves towards closure until it efficiently shuts off. Conversely, if the pressure falls below the set value, the valve remains open, continually compensating to maintain ideal pressure levels.
For upstream pressure management with the ZZYP-K type, this valve serves as both a safety pressure relief and stabilizing device. When upstream pressure climbs beyond the set value, the valve gracefully opens, providing complete relief. If the pressure dips below the set value, it stays closed, safeguarding the system's integrity.
Introducing the ZZYP-II series nitrogen sealing device, a cutting-edge, self-operating micro-pressure control system, proudly designed and manufactured by our company. This sophisticated device is designed to maintain a consistent pressure of protective gas, typically nitrogen, at the top of storage tanks. This ensures no direct contact between the tank's contents and air, effectively preventing evaporation, oxidation, and guaranteeing the utmost container safety.This device is exceptionally well-suited for gas sealing protection in large storage tanks, offering unmatched energy efficiency, precise operation, and trustworthy performance. Its user-friendly design simplifies operation and maintenance, making it indispensable in petroleum and chemical engineering industries.
Remarkably, this device operates without the need for external energy sources such as electricity or gas, embodying convenience, energy-saving principles, and cost-effectiveness, making it a sustainable choice for modern industries. The device facilitates effortless nitrogen supply adjustments and vent pressure settings, performing seamlessly even under continuous production conditions. Featuring a pressure detection diaphragm with an extensive effective area, minimal spring stiffness, and sensitive operation, this device guarantees smooth and efficient performance.
For ultimate storage tank safety, a breather valve must be installed at the tank's summit. This essential component serves exclusively as a safety measure, preventing the frequent, wear-inducing open-and-close cycles associated with conventional nitrogen sealing devices, thus ensuring long-term reliability and protection.Test and Detection Equipment
At SNT Machinery (Qingdao) Co., Ltd., we are passionately committed to upholding the prestigious standards represented by ISO9001 and API SPECQ. Our strategic approach encompasses the thoughtful design and implementation of indispensable control methodologies paired with sophisticated apparatus. This includes elite inspection and testing equipment, alongside high-efficiency process machinery. We ensure a holistic integration and seamless compatibility across every stage-from design and manufacturing to inspection, testing, installation, and service. Our exceptional toolkit features state-of-the-art material chemical composition analysis, imported metal spectrum analyzers of the highest precision, versatile universal tool microscopes, and robust mechanical performance re-inspection capabilities, all catering to the most exacting demands of modern industry.
Expanding our technological prowess, we offer a comprehensive suite of cutting-edge nondestructive inspection equipment, including RT, UT, MT, and PT, supported by a team of certified experts in nondestructive testing. Our distinguished range of pressure test equipment is available in various sizes and is complemented by avant-garde low-temperature test apparatus, helium mass spectrometer leak detectors, and a plethora of other advanced testing machinery. Our thorough testing regimen includes low emission helium mass spectrometer testing, stringent high-pressure gas testing, precise vacuum testing, exhaustive fatigue testing, and meticulous degreasing testing. Each test is diligently executed to uphold the highest echelons of quality standards, ensuring our products are synonymous with excellence and reliability.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. is a premier manufacturer of control valves, skillfully merging production, design, sales, and service into a unified, efficient operation. Nestled in the bustling city of Qingdao, Shandong province, our expansive 42,000-square-meter facility is equipped with cutting-edge workshops and production technology. As a recognized high-tech enterprise, we proudly hold independent intellectual property rights and have embraced advanced management and production techniques from leading international methodologies. Our dynamic workforce of over 150 committed professionals includes 15% specialized R&D experts and 30% with graduate or higher degrees, reflecting our commitment to innovation and excellence. Our superior production management team and trailblazing research have empowered us to manufacture an extensive range of premium valves for the petrochemical, oil, and coal chemical industries, reaching an impressive sales milestone nearing 100 billion in 2017.
SNT Machinery has successfully acquired the TS special equipment manufacturing certificate and ISO 9001 certification, along with esteemed qualification endorsements from industry titans such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Additionally, our technological prowess has garnered numerous national patents. Our extensive capabilities enable us to design and produce a wide array of valves in alignment with ANSI, API, DIN, BS, and JIS standards. By melding the advantages of renowned global valve designs with our innovative research, we now offer a comprehensive 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 diverse product lineup 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 employ premium 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 wide working temperature range (-196ºC to 1100ºC) ensures our valves meet the diverse needs of various industrial applications.
Endowed with advanced 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 prestigious clientele includes 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.
Prioritizing our customers' success, we remain committed to delivering exceptional quality and establishing a reputable brand. Our comprehensive quality assurance and exemplary after-sales systems ensure that SNT valves work in harmony with our customers to foster mutual success 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.
