GENERAL
The single seat control valve is of small size with simple structure which can work normally under severe conditions. The single seat control valves can be divided into following types: pneumatic type, electro-motion type and manual operation type.
The structure of this kind control valve bonnet includes standard type, bellow seal type, low-temperature type, Fin-Extension type, jacketed heat preservation type and etc.
Features:
Body type: Straight line single seat (sleeve) foundry valve S style
D N: DN20~300mm
PN: PN1.6 4.0 6.4MPa
Connecting way: Flange style JB78-59 JB/T79.2-94 concave style
Material: HT200 ZG230_450 ZG1Cr18Ni9Ti ZG0Cr18Ni12M02Ti
Back cover: Normal temperature -20~+200degree
Heat elimination type -40~+450degree
Packing: V-pattern PTFE, soft graphite, stainless steel bellows.
Nominal pressure rating: PN1.6~6.3MPa, ANSI150~600
Nominal diameter: DN40~200mm
Working temperature: Stainless steel metal seat: -20~230degrees Celsius, 20~425degrees Celsius PTFE soft seat: -20~150degrees Celsius
Flow characteristic: Approximate to equal percentage or linear
Pneumatic actuator: Single acting diaphragm
Air supply pressure: 0.2~0.35MPa
Seat type: Double seated
Material: Body: (1)WCB (2)CF8 (3)CF8M (4)CF3 (5)CF3M
Trim: (1)SS304 (2)SS316 (3)SS316L
Optional accessories: (1)Positioner: A. Imported B. Made in China
(2)Connecting flange, bolt: A. Carbon steel B. Stainless steel
Established in 2010, Fuyang Nafang ValveCo., Ltd. is a high-tech company specialized in manufacturing electricoperated, pneumatic operated control valves. The company is located by the Fuchun River, 20 km away from Hangzhou City. Finely staffed with more than 80 employees, the company now has more than 30 state-of-the-art full-featured CNCmachining equipments (turning, milling, and grinding, drilling, linear cutting), more than 50 metal processing equipments, flow test system, and labs.
Main products include:
Electric and pneumatic ball valve (type O, type V, block type);
Electric and pneumatic globe valve (singleseat, sleeve, cage type, three links, two-seater);
Electric and pneumatic butterfly valve (lowload, double eccentric, three eccentric);
Self-operated pressure regulator (pressure, temperature, flow rate and pressure);
Other (high temperature high pressurevalves, surge valve, low temperature valve, pressure and temperature reducingdevice, power plant special valves, etc)
Our company pays much attention to the development of products, and constantlyexcavates internal potential. We focus on high-end market, also pay moreattention of the products before technical direction and after-sales service, pay attention to the details of the products, and digest the foreign advancedtechnology and process. Products are widely used in petroleum, chemicalindustry, metallurgy, electric power, paper making, textile, food, refrigeration, pharmaceuticals and water industries. "Careful manufacturing, providing high quality products; continuous improvement; meeting customer'sneed", is the motto od our company.
We are dedicated to the development ofadvanced technology and high quality products, help you reduce the energyconsumption and the intensity of labor; strengthen your process environment 's safetyand performance.
