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, these innovative devices eliminate the need for external energy sources by harnessing the power of the controlled medium itself. Through an intelligently designed actuator, these valves dynamically adjust the valve core position, altering the flow area to precisely regulate and stabilize the pressure before or after the valve, ensuring seamless flow management.
With remarkable sensitivity and excellent sealing capabilities, these valves minimize pressure fluctuations, making them indispensable in automatic control systems. Whether for pressure reduction and stabilization or pressure relief in various gas, liquid, and steam mediums, they excel across a diverse range of industrial equipment applications.
Our meticulously engineered product line encompasses a variety of valve core structures, including single-seat (P), sleeve (M), and double-seat (N) designs. Additionally, the robust series offers three actuator types: diaphragm, piston, and bellows, providing tailored solutions for specific industrial needs.
Operating Principle
For downstream pressure control (ZZYP-B type), the valve adeptly handles tasks of pressure reduction and stabilization. When downstream pressure exceeds the desired set value, the valve initiates closure, eventually sealing off to maintain optimal conditions, while it remains open to compensate when pressure is below the target.
In contrast, for upstream pressure control (ZZYP-K type), safety pressure relief and stabilization are key functions. As upstream pressure surpasses the preset threshold, the valve efficiently opens, ensuring full pressure relief, whereas it remains closed when pressure stays below the designated level.
Presenting the ZZYP-II series nitrogen sealing device, an advanced self-operating micro-pressure control system, exclusively crafted by SNT Machinery (Qingdao) Co., Ltd. This cutting-edge device secures a constant protective gas pressure, typically nitrogen, atop storage tanks, shielding contents from air exposure, preventing evaporation and oxidation, and guaranteeing container safety.Ideally suited for large storage tank gas sealing systems, this device stands out for its energy efficiency, precision operation, and reliable performance. Its ease of use and maintenance make it a preferred choice in the petroleum and chemical engineering sectors.
Remarkably, it operates independently of external energy sources, negating the need for electricity or gas, thus epitomizing convenience, energy savings, and cost-effectiveness. The nitrogen sealing device simplifies nitrogen supply and pressure setting, capable of functioning seamlessly under continuous production. Featuring a large diaphragm area for pressure detection and a spring with minimal stiffness, it ensures sensitive operation and smooth performance.
For enhanced storage tank safety, a breather valve is essential atop the tank. This safety-focused component prevents the wear from frequent opening and closing of conventional nitrogen supply and vent valves, ensuring consistent and reliable tank pressure management.Test and Detection Equipment
At SNT Machinery (Qingdao) Co., Ltd., we are resolutely committed to upholding the prestigious standards dictated by ISO9001 and API SPECQ. With strategic prowess, we meticulously design and implement critical control methodologies paired with sophisticated apparatus, encompassing top-tier inspection and testing equipment along with high-performance process machinery. Our holistic approach ensures seamless integration and impeccable compatibility across the spectrum of design, manufacturing, inspection, testing, installation, and service processes. Our distinguished collection of tools incorporates state-of-the-art material chemical composition analysis technology, advanced imported metal spectrum analyzers, adaptable universal tool microscopes, and robust mechanical performance re-inspection capabilities that redefine excellence.
Elevating our expertise, we offer a comprehensive suite of advanced nondestructive inspection equipment, including RT, UT, MT, PT, backed by a team of certified inspectors in nondestructive testing. Additionally, we pride ourselves on an impressive array of pressure test equipment in various sizes, cutting-edge low-temperature test apparatus, helium mass spectrometer leak detectors, and other sophisticated testing machinery. Our exhaustive testing lineup covers low emission helium mass spectrometer testing, rigorous high-pressure gas testing, precise vacuum testing, comprehensive fatigue testing, and meticulous degreasing testing, all performed with an unwavering commitment to maintaining the highest quality standards.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. is revered as an eminent authority in the production of control valves, expertly harmonizing manufacturing, design, sales, and service within an integrated framework. Nestled in the dynamic city of Qingdao, Shandong province, our expansive 42,000-square-meter complex is furnished with avant-garde workshops and cutting-edge production equipment. Lauded as a high-tech enterprise, we proudly hold independent intellectual property rights and have assimilated pioneering management and production techniques from around the globe. Our vibrant team, comprising over 150 devoted professionals, includes 15% specialized R&D experts and 30% with advanced degrees, embodying our commitment to innovation and excellence. Our robust production management and trailblazing research have empowered us to engineer a diverse array of premium valves for the petrochemical, oil, and coal chemical sectors, with our sales approaching an impressive milestone of 100 billion in 2017.
SNT proudly holds the esteemed TS special equipment manufacturing certificate and ISO 9001 certification, along with coveted net qualification certificates from industry titans like SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Furthermore, our technological innovations have garnered numerous national patents. Our extensive capabilities empower us to design and manufacture an all-encompassing range of valves, adhering to ANSI, API, DIN, BS, and JIS standards. By fusing the advantages of celebrated global valve designs with our proprietary research, we produce an expansive 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 product catalog features 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 modes. We employ superior materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, with specifications from 1/2" to 120", and operating pressures from ANSI 150# to 2500#. The comprehensive working temperature range (-196ºC to 1100ºC) guarantees our valves fulfill the diverse demands of various industrial applications.
Endowed with sophisticated production technology management and a robust quality assurance system, SNT valves have found extensive applications across petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our prestigious clientele encompasses 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, amongst others.
Prioritizing our customers' triumph, we dedicate ourselves to crafting outstanding quality and a reputable brand. Our comprehensive quality assurance and exemplary after-sales systems ensure that SNT valves collaborate with our customers to cultivate 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.
