DESIGN FEATURES:
? Flexible Wedge for improved seating and ease of operation, especially in high temperature service. Wedges are accurately guided thru the entire stroke.
? Standard trim is API trim 8 for carbon steel valves, API trim 5 for chrome alloy valves, and API trim 10 for CF8M (T316) valves for optimal performance under normal conditions. Other trim materials are available on request.
? Seat faces lapped for smooth finish and superior sealing.
? Stems are non-rotating with surface finish to maximize packing seal for low fugitive emissions.
? Bonnet and Yoke arms designed for ease of gear, motor or cylinder actuator adaptation.
? Each valve is shell, seat and back-seat pressure tested per industry standard API 598.
? Gland is two piece gland / gland flange design for optimal alignment and uniform packing compression
? End Flanges have the following raised faces per ASME B16.5:
Classes 150-300: 1/16" (2mm).
Classes 600-1500: 1/4" (7mm).
? Weld ends are available per ASME B16.25 or per customer's specification.
? Each valve has a unique certification number that is traceable to the valve certification sheet which includes MTR data, pressure test report, inspection report and certificate of conformance.
? Other available options as follows:
-Alternate valve materials such as chrome and stainless steel alloys
-Alternate trim materials
-Bypass, drain and other auxiliary connections
-Gear, motor, and cylinder actuators available
-NACE service
-Special cleaning for applications such as oxygen or chlorine
-Other options available as specified
Material list:
ITEM | PARTNAME | STANDARD | ALLOY CARBON STEEL | STAINLESS STEEL |
1 | BODY | A216 WCB | A217 WC6 | A351 CF8M |
2 | SEAT | A105 | A182 F11 | A182 F316 |
3 | WEDGE | A216 WCB | A217 WC6 | A351 CF8M |
4 | STEM | A182 F6 | AISI 4140/4340 | A182 F316 |
5 | SEALING RING | AISI 1008/SS304L/SS316L |
6 | BONNET | A216 WCB | A217 WC6 | A351 CF8M |
7 | THRUST RING | A276 410 | A276 410 | A276 316 |
8 | SEGMENT RING | A276 410 | A276 410 | A276 316 |
9* | LANTERN RING | 276 410 | 276 410 | A276 316 |
10 | RETAINER | AISI 1025 | 182 F11 | 182 F316 |
11 | BOLT/NUT | A193 B7,B7M/A194 2H,2HM | A193 B16/A194 4 | A193 B8M/A194 8M |
12 | PACKING | GRAPHITE/PTFE |
13 | GLAND | 276 410 | 276 410 | A276 316 |
14 | GLAND FLANGE | A216 WCB | A217 WC6 | A351 CF8 |
15 | GLAND NUT | A194 2H/2HM | A194 4 | A194 8 |
16 | EYEBOLT | A193 B7/B7M | A193 B16 | A193 B8 |
17 | YOKE | A216 WCB | A217 WC6 | A351 CF8 |
18* | GEAR | ASSEMBLY |
*AVAILABLE UPON REQUEST FOR CLASS 300 AND ABOVE
*GEAR OPERATOR, ELECTRICAL OPERATOR, PNEUMATIC OPERATOR, HUDRAULIC OPERATOR AND ETC ARE AVAILABLE
NOTE: OTHER MATERIALS ARE AVAILABLE UPON REQUEST
China zhongya valve Co., Ltd. is a collection research and development, manufacturing, sales and integrated high-tech enterprises. The company is located in NO. 3511 Yongqiang Avenue Longwan District Wenzhou city Zhejiang China...The company introduces advanced technology from abroad, the modern scale production, and equips Germany processing center, Taiwan CNC machine, super precision vertical lathe, automatic painting line and special equipment, machining center, CNC machine tools, special molding, slinging cleaning, passivation treatment, ultrasonic cleaning equipment and a variety of valve pressure testing equipments. As well as equipped with photoelectric direct reading analyzer, thickness tester, radiographic, ultrasonic and liquid penetrant ect, non-destructive testing equipment to ensure that the company's products can be manufactured strictly in accordance with clients'requirements of related standard, to meet the different demands of them.
The company mainly in producing gate valve, globe valve, ball valve, check valve, butterfly valve, hydraulic control valve, supply and drainage water equipment and a variety of special non-standard special valves.
The company implements API (USA) and EN (European Union), ISO (international organization for standardization), BS (British), JIS (Japan) and GB (China) and other major advanced industrial countries and the latest standards of the national standard designing production. Valve body materials are used of carbon steel, alloy steel, chrome molybdenum steel, stainless steel, low-temperature steel, high-temperature steel, nickel base and cobalt base alloy and other materials, and materials specified by the user. Products are widely used in petroleum, chemical, natural gas, coal chemical industry, electric power, shipbuilding, pharmaceutical, paper making, beer industry, food, building, water supply, prevent pollution, and a large number of them are exported to the United States, Europe, Russia, Middle East, Japan, South Korea and southeast Asia and other regions.