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 are ingeniously designed to function without the need for any external energy sources. These sophisticated valves harness the power of the controlled medium itself, ingeniously utilizing it as a power source. By introducing an actuator, they precisely control the position of the valve core. This smart mechanism allows for the seamless adjustment of the flow area, enabling the regulation of flow rate to ensure the stabilization of pressure, either before or after the valve.
These valves boast extraordinarily sensitive operation, superior sealing capabilities, and exhibit minimal pressure fluctuations. They are the epitome of efficiency and reliability, widely utilized for automatic control applications. Whether for pressure reduction and stabilization or for pressure relief and stabilization, these valves perform exceptionally in managing gas, liquid, and steam mediums across diverse industrial equipment.
Our company's distinguished product line is meticulously categorized based on the valve core type into three distinctive structures: single-seat (P), sleeve (M), and double-seat (N). Furthermore, based on the actuator type, they are divided into three sophisticated types: diaphragm type, piston type, and bellows type, each offering unique advantages.
Operating Principle
When tasked with controlling downstream pressure (ZZYP-B type), the valve excels in pressure reduction and stabilization. If the downstream pressure surpasses the predetermined set value, the valve automatically advances towards closure and ultimately shuts off. Conversely, when the downstream pressure is below the desired set value, the valve remains open, adeptly compensating the pressure to maintain equilibrium.
In scenarios where controlling upstream pressure is paramount (ZZYP-K type), the valve is engineered to provide unparalleled safety pressure relief and stabilization. Should the upstream pressure exceed the predefined set value, the valve instinctively opens and achieves a fully open state. Conversely, if the upstream pressure is below this set threshold, the valve remains resolutely closed, safeguarding the system effectively.
Our cutting-edge ZZYP-II series nitrogen sealing device represents a remarkable self-operating micro-pressure control system, meticulously developed and manufactured in-house. It is predominantly employed to maintain a consistent pressure of protective gas, typically nitrogen, at the apex of storage tanks. This ingenious mechanism prevents any direct contact between the materials within the tank and the surrounding air, effectively averting material evaporation and oxidation, thereby ensuring the utmost safety of the container.This exceptional product is specifically engineered for gas sealing protection systems in various large storage tanks. It shines with its energy efficiency, precision operation, dependable performance, and user-friendly nature, proving invaluable in industries such as petroleum and chemical engineering.
Distinguished by its ability to operate without external energy sources, this device functions seamlessly without the need for electricity or gas, making it remarkably convenient, energy-efficient, and cost-effective. The nitrogen sealing device offers effortless nitrogen supply and vent pressure settings, operating flawlessly under continuous production conditions. It boasts a pressure detection diaphragm with a substantial effective area, a spring with minimal stiffness, and exhibits sensitive operation, ensuring the device functions with unparalleled smoothness.
To enhance the safety of storage tanks, it is imperative to install a breather valve at their apex. This breather valve is solely devoted to safety, mitigating the frequent and wear-prone opening and closing of nitrogen supply and vent valves that is typical in conventional nitrogen sealing devices, thus significantly extending the operational lifespan and reliability of the system.Test and Detection Equipment
SNT Machinery (Qingdao) Co., Ltd. prides itself on an unwavering dedication to the exemplary standards established by ISO9001 and API SPECQ. Our strategic design and implementation of essential control methodologies, coupled with sophisticated apparatus, define our excellence. We offer premium inspection and testing equipment alongside high-performance process machinery. Our comprehensive approach guarantees seamless integration and flawless compatibility across all phases: design, manufacturing, inspection, testing, installation, and service. Our exceptional portfolio of tools boasts cutting-edge material chemical composition analysis technology, advanced imported metal spectrum analyzers, versatile universal tool microscopes, and robust mechanical performance re-inspection capabilities. These features ensure that our products meet and exceed industry expectations.
Our expertise is further enhanced by a complete suite of advanced nondestructive inspection equipment, including RT, UT, MT, and PT, supported by a team of certified inspectors in nondestructive testing. We also possess a remarkable collection of pressure test equipment in varied sizes, alongside state-of-the-art low-temperature test apparatus, helium mass spectrometer leak detectors, and other sophisticated testing machinery. Our comprehensive testing lineup includes low emission helium mass spectrometer testing, rigorous high-pressure gas testing, precision vacuum testing, exhaustive fatigue testing, and meticulous degreasing testing. These rigorous procedures are all committed to maintaining the pinnacle of quality standards, ensuring that we consistently deliver products that are both reliable and exceptional in their performance.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. is a premier leader in the world of control valves, merging cutting-edge manufacturing, innovative design, dynamic sales, and exceptional customer service into a unified, seamless operation. Nestled in the bustling city of Qingdao, Shandong province, our sprawling 42,000-square-meter facility showcases state-of-the-art production workshops and top-tier equipment. As a lauded high-tech enterprise, we proudly hold independent intellectual property rights, incorporating the latest management and production techniques from global pioneers. Our vibrant team comprises over 150 passionate professionals, with 15% dedicated to specialized research and development and 30% holding esteemed graduate or higher degrees. We stand at the forefront of innovation and excellence, with a high-quality production management team and groundbreaking research that empower us to deliver an expansive range of superior valves for petrochemical, oil, and coal chemical industries. Our impressive sales milestone approached 100 billion in 2017, underscoring our unwavering commitment to quality and innovation.
SNT has achieved the distinguished TS special equipment manufacturing certificate and ISO 9001 certification, alongside coveted net qualification certifications from industry titans such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. Our technological prowess is further evidenced by the numerous national patents we have been awarded. Our extensive expertise enables us to design and produce a versatile array of valves that adhere to ANSI, API, DIN, BS, and JIS standards. By skillfully blending renowned global valve designs with our own groundbreaking research, we now offer a vast 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, each crafted with precision and excellence in mind.
Our diverse 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 options. Constructed from premium materials such as A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, our valves cover specifications from 1/2" to 120", and operate under pressures ranging from ANSI 150# to 2500#. Our wide operational temperature span (-196ºC to 1100ºC) ensures our valves are perfectly suited to meet the rigorous demands of diverse industrial applications, providing reliability and versatility.
Backed by advanced production technology management and a robust quality assurance system, SNT valves have become indispensable across sectors such as petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our esteemed clientele includes industry leaders like SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Qingdao Refinery, SINOPEC Changling branch, and Jinan branch, to name a few, reflecting our trust and recognition in the market.
Our customers' success is our utmost priority, and we are passionately devoted to delivering unparalleled quality and fostering a prestigious brand. Our comprehensive quality assurance systems, coupled with our exemplary after-sales support, ensure that SNT valves don't just align with our customers' needs but drive forward mutual prosperity and forge enduring partnerships for a brighter future.
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.
