You are here: Home » Products » Valve Series » Gate valve » Cast Steel Gate Valve
  • Product Name
  • Product Keyword
  • Product Model
  • Product Summary
  • Product Description
  • Multi Field Search


More >>


More >>


More >>

Contact Us

Company:Wenzhou Topnotch Machine Co.,Ltd. 
Address:Dongyang Rd., Heyi Industrial Zone,Oubei Town, Yongjia County,Wenzhou,Zhejiang, China 325105
Contact Person: Mr. Kevin Tung
Tel: +86-577-67318591 67318935
MB: 86-18906638592
Share to:

Cast Steel Gate Valve

Cast steel gate valves can only be fully opened and fully closed to be used for cutting in the pipeline.The entire flow channel is a straight-through passage when the valve is fully-open, and the pressure loss of medium running is minimum.Gate valve is usually for working condition in which the valve is not opened or closed frequently, It's not suitable for adjustment or throttling.The most important feature of the cast steel gate valve of TANA machine is that they can be ensured that the permissible leakage rate can be lower than that specified in API 6D and API 600, and the middle shaft sealing can pass the USA VOC leakage test. Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel may be selected for transportation of water, steam, oil, natural gas, nitric acid, acetic acid, oxidant and urea.

Design Features

Full port design  
OS&Y, outside and screw  
Bolted bonnet, back seal structure  
Flexible wedge, fully guided  
Choice of solid or split wedge  
welded seat  
Extended stem design for low temperature  
Flanged or butt-welding ends


Sizes Ranges from 1 1/2” thru 60”

Pressure Ratings from Class 150 to Class 1500, PN16 to PN260

Structured in Bolted Cover, Outside Screw and York, Optional Non-rising Stem

Ends Connections in Flanged R.F or RTJ, Butt-welded and Grooved



Technical Specification

Size:2"-60" or DN50-DN1500

Pressure: Class150-2500LB or PN16-PN250 or 10K-40K

Material:WCB, WCC, LCB, LCC, WC6, WC9, C5, C12, CF8, CF8M, CF3, CF3M, CF8C, CN7M,etc.

Design & Manufacture Std.: API600, ASME B16.34, API6D, BS5351,JIS B2073  

Face to Face Std.: ASMEB16.10 (JIS B2002),API 6D, DIN3202, ASME B16.25

End Connection Std.: ASME B16.5,ASME B16.47, JISB2212-JISB2214,DIN2543-2550,ASME B16.34

Test Standard: ISO5208, API598 (JIS B2003), API 6D, BS 6755

Operated way: Handwheel, Bevel Gear, Pneumatic, Electric Actuator

Main Material list

cast steel gate valve (2).jpg NO. Part name Material
1 Body ASTM A216 Gr.WCB
2 Seat ring ASTM A105+13Cr
3 Wedge ASTM A216 Gr.WCB+13Cr
4 Stem ASTM A182 F6a
5 Gasket 304 s.s.Jacketed Graphite
6 Stud ASTM A193 Gr.B7
7 Nut ASTM A194 Gr.2H
8 Bonnet ASTM A216 Gr.WCB
9 Back seat ASTM A276 410
10 Packing Graphite
11 Pin C.S.
12 Gland bolt ASTM A193 Gr.B7
13 Gland nut ASTM A194 Gr.2H
14 Bushing  ASTM A276 410
15 Gland ASTM A216 Gr.WCB
16 Stem nut Alumimum Bronze
17 Retaining nut C.S.
18 Handwheel Melleable iron
19 H.W.lock nut C.S.
20 Lubricator Assembly

Main dimension

class 150 main dimensions.jpg

For more details, please download the catalogue for reference or contact with us.

API cast steel gate valve.pdf

If you have any enquiry about quotation or cooperation,please feel free to email us at or use the following enquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.


For urgent matters,TANA after sales service is active 24 hours a day

Contact Us

​Company:Wenzhou Topnotch Machine Co.,Ltd. 

Address:Dongyang Rd., Heyi Industrial Zone,Oubei Town, Yongjia County,Wenzhou,Zhejiang, China 325105

Contact Person:
  Mr. Kevin Tung 

Tel: +86-577-67318591 67318935


MB: 86-18906638592

 Copyright ©WenzhouTopnotch Machine Co.,Ltd. All rights reserved.    Site Map    Xml