Industrial 4 Inch  Class 300 Flange Gate Valve 

Type： Z40H/W
Size：2"-36"
Pressure Range：Class 150∽Class 1500 
Working Temp.：≤425°
Material：Carbon steel,stainless steel,Alloy steel,special alloy steel
Medium：Water Steam Oil
Operation: Manual Pneumatic Electric

Steel gate valves, API 600/API 6D                              
Steel gate valves, ISO 10434/ISO 14313                    
Steel valves, ASME B16.34                                             
Face to face, ASME B16.10                                           
End flanges, ASME B16.5                                                      
Butt welding ends, ASME B16.25                                  
Inspection and test, API 598     


Wedged Carbon Steel Gate Valve Material of parts:
 

No.	ASTM Material
	Part Name	Carbon steel	11/4 Cr-11/2 Mo	Low-term. Steel	Stainless steel
1	Body	A216-WCB	A217-WC6	A352-LCB	ASTM A351 CF8M
2	Bonnet	A216-WCB	A217-WC6	A352-LCB	ASTM A351 CF8M
3	Wedge	A216-WCB+13Cr	A217-WC6+HF	A352-LCB+13Cr	A351-CF8M+STL
4	Stem	A182-F6a	CR-MO-V	A182-F6a	A182-F316
5	Seat Ring	A105+13Cr	A182 F11+HF	A350 LF2+13Cr	A182-F316+STL
6	Stem Back Seat	A276-410	A276-410	A276-410	A182-F316
7	Bonnet Gasket	Spiral Wound(Graphite+304/316)
8	Bonnet Stud	A193-B7	A193-B16	A320-L7	A193-B8M
9	Bonnet Stud Nut	A194-2H	A194-7	A194-4	A194-8M
10	Packing	Graphite
11	Gland	A276-420	A276 420	A276-420	Stainless steel
12	Gland Flange	A216 WCB	A217-WC6	A352-LCB	ASTM A351 CF8M
13	Eyebolt Pin	Carbon steel	A276 420	Carbon steel	Stainless steel
14	Bolt	Carbon steel	A193-B7	Carbon steel	A193-B8M
15	Nut	Carbon steel	A194-2H	Carbon steel	A194-8M
16	Grease Fitting	Brass + steel
17	Yoke sleeve	Copper Alloy
18	Yoke sleeve nut	Carbon steel
19	Handwheel	Malleable iron
20	Handwheel nut	Carbon steel

Note: 1)  Ductile Ni-Resist optional  
          2)  Wedge and seat ring may either be solid facing material or a base material equal or better than the body/bonnet material with facing as shown.