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 marvels of engineering that require no external energy, leveraging the inherent energy of the controlled medium itself. As a powerhouse utility, they employ an actuator to adeptly manage the valve core position, optimizing the flow area to meticulously regulate the flow rate, thus ensuring the pressure before or after the valve remains steadfastly stable.
These valves epitomize precision with their sensitive operational capabilities, outstanding sealing integrity, and negligible pressure fluctuation. They have become indispensable across diverse industrial landscapes, excelling in the automatic regulation for both pressure reduction and stabilization, as well as pressure relief and stabilization, of gas, liquid, and steam mediums.
Our company's cutting-edge series of products is crafted into distinct structural designs: single-seat (P), sleeve (M), and double-seat (N), based on the valve core type. Furthermore, the series is innovatively categorized according to actuator type: the resilient diaphragm type, the robust piston type, and the versatile bellows type.
Operating Principle
For downstream pressure control (ZZYP-B type), it embodies functions of pressure reduction and steadfast stabilization. Should the downstream pressure surpass the set parameter (desired value), the valve instinctively trends towards closure, ultimately shutting off. Conversely, when the pressure dips beneath the set value, the valve remains open, actively compensating the pressure.
In the realm of upstream pressure regulation (ZZYP-K type), the valve's prowess lies in safety pressure relief and stabilization. Should the upstream pressure exceed the predetermined value, the valve predictably opens, fully embracing its capacity. On the other hand, if the pressure remains below the designated threshold, the valve stays closed, ensuring stability.
The ZZYP-II series nitrogen sealing device is a self-operating micro-pressure control masterpiece, meticulously engineered by our dedicated team. Primarily designed to maintain an unwavering, constant pressure of protective gas-typically nitrogen-at the storage tank tops, this device prevents the precious materials within from coming into direct contact with air, thwarting evaporation, oxidation, and safeguarding container integrity.This product is tailor-made for gas sealing protection systems associated with vast storage tanks, showcasing energy efficiency, operational sensitivity, and reliable performance. Coupled with its user-friendly operation and low maintenance demands, it stands as a beacon of innovation, widely adopted in sectors like petroleum and chemical engineering.
A hallmark of convenience, the nitrogen sealing device operates seamlessly without the need for external energy sources, such as electricity or gas. This energy-saving, cost-effective solution bolsters operational efficiency while minimizing resource consumption. The nitrogen sealing device is designed for simplicity, allowing facile nitrogen supply and vent pressure setting, adeptly functioning under continuous production conditions. With a pressure detection diaphragm boasting a significant effective area and low spring stiffness, it ensures sensitive operation and smooth performance.
To fortify the safety of storage tanks, installing a breather valve at the tank's summit is imperative. This essential component serves a protective role, preventing the frequent and wear-inducing opening and closing actions commonly associated with conventional nitrogen sealing devices.Test and Detection Equipment
SNT Machinery (Qingdao) Co., Ltd. is steadfastly committed to maintaining the prestigious standards of ISO9001 and API SPECQ. Our strategic focus is on the meticulous design and execution of vital control methodologies and cutting-edge apparatus, which include top-tier inspection and testing equipment paired with high-efficiency process machinery. Our holistic approach guarantees the flawless integration and impeccable compatibility in the realms of design, manufacturing, inspection, testing, installation, and service. Our unparalleled range of tools showcases state-of-the-art chemical composition analysis technology, sophisticated imported metal spectrum analyzers, adaptable universal tool microscopes, along with robust mechanical performance re-inspection capabilities.
Elevating our proficiency is a comprehensive suite of advanced nondestructive inspection equipment, such as RT, UT, MT, PT, coupled with a team of highly skilled, certified inspectors in nondestructive testing. Our exceptional collection includes a wide range of pressure test equipment in various dimensions, cutting-edge low-temperature test apparatus, helium mass spectrometer leak detectors, and other high-tech testing machinery. Our exhaustive testing regime covers low emission helium mass spectrometer testing, stringent high-pressure gas testing, highly accurate vacuum testing, extensive fatigue testing, and thorough degreasing testing, all dedicated to upholding the highest quality standards.
Production application
Company Profile
SNT Machinery (Qingdao) Co., Ltd. is a renowned leader in the production of control valves, seamlessly blending manufacturing, design, sales, and service into a unified and effective operation. Nestled in the bustling city of Qingdao, Shandong province, our expansive 42,000-square-meter facility boasts cutting-edge workshops and advanced production equipment. As an esteemed high-tech enterprise, we're proud to hold independent intellectual property rights, adopting world-class management and production techniques from abroad. Our vibrant and dynamic team comprises over 150 dedicated professionals, with 15% being specialized R&D experts and 30% holding graduate or higher degrees, reflecting our commitment to innovation and excellence. Our top-tier production management and pioneering research efforts have empowered us to produce an extensive range of superior valves for the petrochemical, oil, and coal chemical sectors, leading to a remarkable sales milestone nearing 100 billion in 2017.
SNT takes pride in having secured the TS special equipment manufacturing certificate and ISO 9001 certification, as well as the prestigious network qualification certificates from industry titans such as SINOPEC, CNOOC, PETROCHINA, and SINOCHEM. We have also been awarded numerous national patents for our technological innovations. Our comprehensive capabilities enable us to design and manufacture a wide array of valves in adherence to ANSI, API, DIN, BS, and JIS standards. By fusing the advantages of renowned global valve designs with our proprietary innovative research, we now 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 selection includes V ball valves, high wear-resistant ball valves, high-pressure steam valves, micro-flow control valves, self-operated control valves, and cryogenic valves. These are available in manual, power-driven, pneumatic, and hydraulic actuation forms. We utilize top-quality materials like A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M, with a broad range of specifications from 1/2" to 120", and operating pressures from ANSI 150# to 2500#. Our valves are designed to handle an expansive working temperature range (-196ºC to 1100ºC), ensuring they meet the diverse demands of various industrial applications.
Armed with advanced production technology management and a robust quality assurance system, SNT valves have been widely adopted across the petrochemical, oil, steel & iron, paper manufacturing, and power station industries. Our esteemed clientele features 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.
By placing our customers' success at the heart of our operations, we dedicate ourselves to crafting exceptional quality and building a reputable brand. Our comprehensive quality assurance and exemplary after-sales systems guarantee that SNT valves foster collaboration with our customers, paving the way for mutual prosperity 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.
