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

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