Carbon Steel Flange Dbb Twin Ball Valve

• Customization: Available
• Characteristic: Dbb Ball Valve
• Design & Manufacture: API 6D, ASME B16.34 & BS5351
• Pre-Temp. Rating: ASME B16.34
• Face to Face: ASME B16.10
• Ends Connection: RF, Rtj, Bw
• Inspect & Test: API 598
• Certificate 1: Dnv CE 0575
• Certificate 2: ISO 9001: 2008
• Transport Package: Standard Sea Worthy
• Specification: API6D, BS5351
• Trademark: VATAC or OEM
• Origin: China
• HS Code: 84818040
• Production Capacity: 6000ton Per Year

Product Description

Flange RTJ or RF with Thread BSP or NPT Ends Double Block and Bleed Ball Valve(Twin or Double Ball) Conform to API 6D, BS5351, and ASME B16.34.
They are tested according to API 598, and marked as per MSS SP-25
They are tested according to API 598, and marked as per MSS SP-25


1. Construction is as follows
 

- Full Port or Reduce Port

- Twin Ball Design

- Bolted Bonnet with spiral-would gasket

- Fire Safe Design

- Anti-static Design & Blow-out proof stem

- Double Block and Bleed

- With Needle Bleed Valve

- With Drain Valve

- Screwed Ends to ASME B1.20.1

- Flanged Ends to ASME B16.5

2. Main Part & Materials
 

Part Names	Part Materials
Body	A105	LF2	F22	F304	F316	F304L	F316L
Bonnet	A105	LF2	F22	F304	F316	F304L	F316L
Ball	A105+ENP	SS304	F22	SS304	SS316	SS304L	SS316L
Stem	A105	F304	F6a	F304	F316	F304L	F316L
Seat/Seat Ring	PTFE/RPTFE/NYLON/DEVLON/PEEK or METAL
Packing	Graphite/PTFE
Gasket	SS304+Graphite/SS304+Graphite
Bolts/Nuts	B7/2H	L7/4	B16/4	B8/8	B8M/8M	B8/8	B8M/8M
Suitable Medium	W.O.G etc.			HNO3, CH3OOH etc.
Suitable Temperature	-29~425 °C	-46~340 °C	-46~340 °C	-196~427 °C	-196~427 °C	-196~427 °C	-196~427 °C

3. Normal Pressure Rating

PN10~PN420, CLASS150~2500

4. Normal Size Range
   
DN15~DN300, 1/2"~12"