Piloted High-Pressure Steam Vent Valves with Heat Tolerance/Flow to Close/Leackage Class V/ANSI150-2500#

• Customization: Available
• Temperature: High Temperature
• Certification: GS, CE, ISO9001
• Model NO.: AOC-4848
• Media: Gas, Oil, Water, Acid
• Standard: Standard
• Connection Mode: Flange
• Power: Pneumatic
• Material: Stainless Steel
• Type: Sleeve
• Nominal Diameter: Nps 2′′-Nps 24′′(DN50-DN600)
• Nominal Pressure: ANSI 150-2500#
• Connection: Butt Welded Joint
• Cap Design: Standard Type/Heat Dissipation Type
• Valve Core Shape: Pilot-Operated Valve Core
• Valve Flow Direction: Flow-to-Close Design
• Packing Material: Flexible Pure Graphite Packing Assembly
• Valve Core Type L: Pilot-Operated Low Noise Sleeve
• Valve Core Type X: Pilot-Operated Special Low Noise Sleeve
• Valve Core Type D: Pilot-Operated Dual-Layer Sleeve (Non-Expansion Ty
• Valve Core Type E: Pilot-Operated Dual-Layer Sleeve (Expansion Type)
• Actuator 1: Pneumatic Diaphragm Multi-Spring Actuator
• Actuator 2: Cylinder-Type Single or Double-Acting Actuators
• Actuator 3: Electric/Hydraulic Actuator
• Leakage Class: IEC V
• Transport Package: Wooden
• Trademark: SNT
• Origin: China
• HS Code: 8481804090
• Production Capacity: 500000PCS/Year

Product Description

 

Product Description

The Pilot-operated High-Temperature Steam Venting Control Valve is a bespoke solution engineered by SNT specifically for conditions involving the release of high-temperature steam.
The basic configuration of the Pilot-operated High-Temperature Steam Venting Control Valve features a straight-through valve body, a pilot-balanced valve core, low noise, and multi-stage pressure reduction sleeve control, making it suitable for extremely harsh conditions. Fluid flow is primarily controlled by specially drilled sleeves, which provide continuous guidance for the valve core throughout its full travel. The flow-to-close design ensures tight shutoff when the valve is closed by leveraging the unbalanced forces generated by fluid flow. The specially designed pilot-balanced valve core requires minimal force to open the valve. A patented metal guide ring and pure metal hard seal ensure that the valve can meet IEC leakage class V at 566°C high temperature conditions without any practical temperature limitation (Patent No.: ZL201621067704). Typically, the valve is equipped with a SNT pneumatic diaphragm multi-spring actuator, but cylinder-type single or double-acting actuators, electric, or hydraulic actuators can also be selected upon request, achieving switching times of less than 1 second.





 

Test and Detection Equipments

          LT impact testing machine                                              UT test equipment                                     MT test equipment

 

          RT test equipment                                                   PT test equipment                              Metallurgical microscope

 Hardness test equpment
 

Advanced production and manufacturing systems
 

                CNC lathe                                                        internal and external grinding machine           Plasma welding machine
 

  
          4m Stem processing equipment                                      CNC wire cutting                      CNC drilling and milling equipment
 

Company Profile

<sup>SNT Machinery(Qingdao) Co. , Ltd is a producer of control valves, combines manufacturing, designing, sales and services in one. It has high starting point quick development SNT is located in Qingdao, Shandong province with an area for 42000m2, equipped with modern workshop and production equipment. It is a high-tech enterprise with independent intellectual property rights and imported advanced management and production experience. Now it has more than 150 workers, and R&D specialist accounts for 15%, graduates or with higher degrees account for 30%. Depending on high quality production management team and innovative technology research and development, now we produce large quantities of high quality vales used in petrochemical, oil and coal chemical industries. We have a sales value to nearly 100billion in the year 2017.

Now SNT has got the TS special equipment manufactuuring certificate and ISO 9001, and has acquired the net qualification certificate of SINOPEC,CNOOC, PETROCHINA and SINOCHEM. And we have got the National Patent in many technologies. We can design and manufacture all series of valves according to ANSI, API, DIN, BS, JIS standards. Combining the advantages of famous valves all cross the world and with independent research and development, until now we can manufacture all kinds of valves, including GLOBE, High Pressure Boiler Blow-down Valves, High-performance Butterfly Valves, Angle-regulating Valves, Eccentric  Rotary Valves, T Three-eccentric Center Butterfly 
Valves, V Ball Valves, High Wear-resistant Ball Valves, High Pressure Steam Valves, Micro-flow Control Valves, Self-operated Control Valves, Cryogennic Valves tc,  Driving form includes manual operation, power-drinven, pneumantic and hydraulic drive. Materials for main parts are A216WCB, A217 WC6/WC9, A351 CF8/CF8M/CF3/CF3M etc. Specification 1/2"~120", working pressure ANSI 150#~2500#, working temperature -196ºC~1100ºC.

Relying on advanced production technology management and qulity assurance system, SNT Valves have been widely used in petrochemical, oil, steel&iron, paper manufacturing and power station industries. Our customers include SINOPEC QILU branch, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINA Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Qingdao Refinery, SINOPEC Qingdao branch, CNOOC Huizhou Refinery, PETROCHINC Guangxi branch, PETROCHINA Ningxia branch, SINOPEC Changling branch, Jinan branch etc.

We make user's profits as our priority, devoting ourselves to the establishment of excellent quality and good brand, Our perfect quality assurance and after-sales systems guarantee that SNT valves join hands with all our customers and creat prosperity.</sup> 

 

Production application