imgboxbg
导航

语言

Time of issue:2021-01-12 13:33:33

CN  |
Search
OK
Cancel
耐益
耐益
 全套工业
全套工业
 RY
RY
Service hotline：400 665 0577
耐益
全套工业
RY

COMPANY

naiyi
naiyi

 Naiyi Valve Manufacturing Co., Ltd., established in 1995, is a modern professional valve manufacturing company integrating scientific research, manufacturing, sales and service. It is located in Wenzhou Economic and Technological Development Zone, Zhejiang Province, with a building area of 30000 square meters. At present, there are more than 100 employees, including more than 10 senior and intermediate engineering and technical personnel, mainly serving in oil, natural gas, chemical industry, power station, metallurgy, national defense, pharmaceutical, manufacturing and other fields.

Naiyi Valve Manufacturing Co., Ltd

The company mainly produces all kinds of high, medium and low pressure gate valves, globe valves, hard seal flange butterfly valves, hard seal wafer butterfly valves, electric flange butterfly valves, pneumatic flange butterfly valves, electric wafer butterfly valves, pneumatic wafer butterfly valves, electric gate valves, electric globe valves, check valves, ball valves, Y-type filters, and non-standard special valves.

PRODUCT
 

PRODUCT
 

HONOR
 

Business license
Business license
Intellectual Property Management System Certification Certificate
Intellectual Property Management System Certification Certificate
Quality management system certification
Quality management system certification
Quality management system certification
Quality management system certification
Intellectual Property Management System Certification Certificate
Intellectual Property Management System Certification Certificate
Intellectual Property Management System Certification Certificate
Intellectual Property Management System Certification Certificate
Quality management system certification
Quality management system certification
Quality management system certification
Quality management system certification
Zhejiang Province Science and Technology SME Certificate
Zhejiang Province Science and Technology SME Certificate

APPLICATIONS
 

naiyi

01
water conservancy

naiyi

02
Industry

naiyi

03
Metallurgy

naiyi

04 
Chemical industry

naiyi

05
Gas

naiyi

01
water conservancy

 

02
Industry

 

naiyi
naiyi

03
Metallurgy

 

03
Metallurgy

 

naiyi
naiyi

05
Gas

 

NEWS
 

NEWS

05-19

What are the maintenance methods of valves

01-12

Control valve for pipeline with diameter below DN65

Gate valve: The rated water working pressure should be above 175psi, and the valve body and bonnet material are cast bronze alloys that meet the American Society for Testing and Materials ASTM 62 standard. The valve structure is OS&Y and threaded connection. The valve should obtain UL certification, FM certification, and comply with the MSS-SP80 standard of the American Valve and Pipe Fitting Manufacturer Standardization Association.   Available valves: American Nibco T-104-O gate valve   Ball valve: The rated water working pressure should be above 175psi, and adopt PTFE valve seat. This type of valve should be equipped with a gear actuator that is not affected by the weather, can be used indoors/outdoors, has a rising position indicator and two built-in monitoring switches. This kind of valve should be threaded connection or slotted connection, and obtain UL certification, FM certification, and comply with the MSS-SP110 standard of the American Valve and Pipe Fitting Manufacturer Standardization Association.   Available standard runner valves: American Nibco KT-505 ball valve (threaded connection) American Nibco KG-505-8W ball valve (slotted connection) pipeline control valve with a diameter of DN65 or more   Gate valve: Rated water working pressure should be above 175psi, cast iron valve body and bronze valve trim, or elastic rubber sealing wedge. The valve body and bonnet should be made of cast iron alloy conforming to ASTMA126 level B of the American Society for Testing and Materials, or ASTMA536 ductile iron, with OS&Y type bonnet. If an elastic wedge structure is used, the inside of the valve must be coated with epoxy resin. The valve stem is prefabricated with slotted pipe, and the monitoring switch can be configured when needed. The connection method is 125-pound flange connection or slotted connection. This kind of valve should pass the American UL certification, FM certification or comply with the MSS-SP70 standard of the American Valve and Fitting Manufacturers Standardization Association.   Available valves: American Nibco F-607-OTS or F-607-RW gate valve (flange connection) American Nibco G-607-RW or FG-607-RW gate valve (tubular connection)   The indicator column equipped with gate valve: The rated water working pressure of such gate valve with a diameter of DN100 or more should not be less than 175psi, equipped with bronze valve trim and elastic rubber sealing wedge. The valve body and bonnet are made of cast iron alloy conforming to ASTMA126 level B standard or ASTMA536 standard ductile iron, equipped with bonnet and integrated indicator column mounting flange. If an elastic wedge structure is used, the inside of the valve must be coated with epoxy resin. The connection port is a 125-pound flange or mechanical connection. The vertical indicator column is adjustable and suitable for deep burial. Valves and indicator columns should obtain UL certification, FM certification, and comply with the MSS-SP70 standard of the American Valve and Pipe Fitting Manufacturers Standardization Association.   Available valves and indicator columns: Nibco F-609 or F-609-RW flange gate valve, Nibco M-609 or M-607-RW, underground mechanical connection gate valve, Nibco NIP1-AJ, USA Indicator column NIP2-AJ wall indicator column   Check valve: The rated water working pressure of this type of check valve should not be less than 175psi, equipped with bronze valve trim and rubber-metal seat. The valve body material should be cast iron alloy in accordance with ASTMA126 grade B of the American Society for Testing and Materials. The connection port should be flange or flat (wafer type). The valve should obtain UL certification, FM certification, and comply with the MSS-SP71 standard of the American Valve and Fitting Manufacturers Standardization Association.
01-12

Comparison of English and Chinese terms for valve types

Air valves空气阀门Angle Stop valves角式截止阀 Angle Throttle Valves角式节流阀 Angle Type Globe Valves门角式截止阀 Aspirating valves吸(抽)气阀 Auxiliary valves辅助(副)阀 Balance valves平衡阀 Bellows valves波纹管阀 Blowdown valves泄料(放空，排污)阀 Brake valves制动阀 Butterfly Type Non-slam Check蝶式缓冲止回阀 Butterfly Valves with Gear Actuator蜗轮传动蝶阀 Buttwelding valves对焊连接阀 Clamp valves对夹式阀门 Cock二通 Combination valves组合阀 CQ Thread Ball Valves CQ螺纹球阀 Culvert valves地下管道阀 Deceleration valves减速阀 Diaphragm Valves隔膜阀 Decompression valves泄压阀 Double Disc Flat Gate Valves双闸板平板闸阀 Double Disk Parallel Gate Valves明杆平行式双闸板闸板 Double Opening Exhaust Valves双口排气球 Drainage valves排水阀 Electric Actuated Stop Valves电动截止阀 Electric Actuated Wedge Gate Valves电动楔式闸阀 Electric Double Disk Parallel Gate Valves电动平行式双闸板闸板 Emergeny Cut-off Valves紧急切断阀 Free Float Type Steam Trap浮球式疏水阀 Flange Ball Valves法兰球阀 Flange Gate Valves法兰闸阀 Flange Globe Valves法兰截止阀 Hand-operated valves手动阀 Hard Seal Butterfly Valves金属密封碟阀 High Temperature Pressure Power Station Gate Valves高温高压电站闸阀 High Temperature Pressure Power Station Globe Valves高温高压电站截止阀 Hydraulic relay valves液压继动阀 Lift Check Valves升降式止回阀 Lift Check Valves升降式止回阀 Limit valves限位阀 Lining Ball Valves衬里球阀 Lining Butterfly Valves衬里碟阀 Lining Check Valves衬里止回阀 Lining Cock衬里二通 Lining Globe Valves衬里截止阀 Lining T-Cock Valves衬里三通旋塞阀 Liquid Indicator液位计 LPG Pipe Fitting液化气管件 Magnetic Co-operate Globe Valves磁耦合截止阀 Magnetism Forle Pumps磁力泵 Manual Oil Pumps Valves手摇油泵(阀) Meter Needle Type Globe Valves仪表针形截止阀 Oblique Stop Valves直流式截止阀 Parallel Slide Valves浆液阀 Pintle valve针形阀 Piping Centrifugal Pumps管道离心泵 Plunger valves柱塞阀 Pressure valve压力(増压)阀 Piping Pumps管道泵 Piping Safety Valves管道安全阀 Plunger Globe Valves柱塞截止阀 Quick Draining Valves快速排污阀 Restrictor Valves过流阀(或节流阀) Safety Valves安全阀 Screw Pumps螺杆泵 Scum Gate Valves排渣闸阀 Solenoid valves电磁阀 Single Disc Flat Gate Valves单闸板平板闸阀 Single Opening Exhaust Valves单口排气球 Slurry Pumps泥浆泵 Stop Valves截止阀 Strainer过滤器 Submerged Motor Pumps潜水电泵(排污泵) Swing Check Valves旋启式止回阀 Swing Check Valves旋启式止回阀 Tank Lorry Ball Valves槽车球阀 T-Cock三通 Thin Gate Valves薄型闸阀 Throttle Valves节流阀 Tiny Drag Slow Shut Check Valves微阻缓闭止回阀 Triple (tee) valves三通阀 Two-way valves二通阀 Under Water Pumps液下泵 Vacuum Pumps水力喷射器(真空泵) Vertical Lift Check Valves立式止回阀 Wafer Check Valves对夹式止回阀 Wafer plate valves对夹蝶板阀 Wafer Type Butterfly Valves with Rubber Itning对夹式衬胶蝶阀 Waste Valves排污箱(阀) Water Seal Gate Valves水封闸阀 Wedge Gate Valves楔式闸阀 Y Type and Cylinder Filters Y型筒型过滤器
01-12

Advantages and disadvantages of different valve classification and their different application occasions

Classified by purpose and function The cut-off valve is mainly used to cut off or connect the medium flow. Including gate valves, globe valves, diaphragm valves, ball valves, plug valves, butterfly valves, plunger valves, ball plug valves, needle instrument valves, etc. Regulating valves are mainly used to adjust the flow and pressure of the medium. Including regulating valve, throttle valve, pressure reducing valve, etc. Check valves are used to prevent the medium from flowing back. Includes check valves of various structures. Shunt valves are used to separate, distribute or mix media. Including various structures of distribution valves and traps. Safety valves are used for safety protection when the medium is overpressured. Including various types of safety valves. Classified by main parameters     (1) Classified by pressure A valve whose working pressure is lower than the standard atmospheric pressure. Low pressure valve is a valve whose nominal pressure PN is less than 1.6MPa. The nominal pressure of the medium pressure valve is PN2.5~6.4MPa. The high-pressure valve has a nominal pressure of PN10.0~80.0MPa. A valve whose nominal pressure PN is greater than 100MPa.   (2) Classified by medium temperature The high temperature valve t is greater than 450C. The medium temperature valve 120C is less than the valve whose t is less than 450C. Normal temperature valve -40C is less than t less than 120C. Low temperature valve -100C is less than t less than -40C. The ultra-low temperature valve t is less than -100C.     (3) Classification by valve body material Non-metallic material valves: such as ceramic valves, glass steel valves, plastic valves. Metal material valves: such as copper alloy valves, aluminum alloy valves, lead alloy valves, titanium alloy valves, Monel alloy valves Cast iron valves, carbon steel valves, cast steel valves, low alloy steel valves, high alloy steel valves. Metal valve body lining valves: such as lead-lined valves, plastic-lined valves, and enamel-lined valves.     General taxonomy This classification method is divided according to the principle, function and structure, and is currently the most commonly used international and domestic classification method. General gate valve, globe valve, throttle valve, instrument valve, plunger valve, diaphragm valve, plug valve, ball valve, butterfly valve, check valve, pressure reducing valve, safety valve, trap, regulating valve, foot valve, filter , Drain valve, etc.
01-12

On the knowledge of valve classification

This classification method is divided according to the principle, function and structure, and is currently the most commonly used international and domestic classification method. General gate valve, globe valve, throttle valve, instrument valve, plunger valve, diaphragm valve, plug valve, ball valve, butterfly valve, check valve, pressure relief valve, safety valve, trap, regulating valve, foot valve, filter, Drain valve, etc.   Classified by purpose and function Regulating valves-mainly used to adjust the flow and pressure of the medium. Including regulating valve, throttle valve, pressure reducing valve, etc. Check valves-used to prevent the medium from flowing back. Includes check valves of various structures. Shunt valves-used to separate, distribute or mix media. Including various structures of distribution valves and traps. Safety valves-used for safety protection when the medium is overpressured. Including various types of safety valves. Shut-off valves-mainly used to cut off or connect the medium flow. Including gate valves, globe valves, diaphragm valves, ball valves, plug valves, butterfly valves, plunger valves, ball plug valves, needle instrument valves, etc.   Classified by pressure Vacuum valve-a valve whose working pressure is lower than the standard atmospheric pressure. Low pressure valve-a valve whose nominal pressure PN is less than 1.6MPa. Medium pressure valve-a valve with a nominal pressure of PN 2.5-6.4MPa. High-pressure valve-a valve with a nominal pressure of PN10.0-80.0MPa. Ultra-high pressure valve-a valve whose nominal pressure PN is greater than 100MPa.   Classified by medium temperature High temperature valve-a valve with t greater than 450°C. Medium temperature valve—a valve whose 120℃ is less than t and 450℃. Normal temperature valve-40℃ less than t less than 120℃ valve. Cryogenic valve-a valve whose 100℃ is less than t and -40℃. Ultra-low temperature valve-a valve with t less than -100°C.   Classified by valve body material Metal valve body lining valves—: lead-lined valves, plastic-lined valves, enamel-lined valves. Non-metallic material valves-such as ceramic valves, glass fiber reinforced plastic valves, plastic valves. Metal material valves-such as: copper alloy valves, aluminum alloy valves, lead alloy valves, titanium alloy valves, Monel alloy valves, cast iron valves, carbon steel valves, cast steel valves, low alloy steel valves, high alloy steel valves.
naiyi

About  us

Product Category

Service

Tel：86 0577 86991708
mobile phone：13566290008
Fax：86 0577 86991707
Email：1205196880@qq.com    naiyi@naiyi.cn
Add：193 Baiyu Road, Binhai Park, Wenzhou Economic and Technological Development Zone, Zhejiang Province
http://en.naiyi.cn/

Message

Username used for comment:
客户留言
Description:
验证码
这是描述信息

WeChat

这是描述信息

Mobile terminal

NAIYI Valve Co., Ltd.   浙ICP备05072667号    www.300.cn

Messages

Messages

QQ

QQ

Tel

86-0577-86991708

WeChat

Scan add

TOP