ASTM A351-CF8M(DIN 1.448) Stainless steel
ASTM A351-CF8(DIN 1.4308) Stainless steel
1/4"- 4" 1000 SPI(PN63)/450deg.F
15% reinforced glass fibrous Telflon seats
Blow-out proof stem S/S 316,adjustable stem packing
100% tested air-under water at 100 PSI (6 Bars) open&close position.
1)Small flow resistance.
2)Swift opening and closing at 90° degree.
4)Excellent sealing performance.
6)Wildly used in water works, power generating factories, chemicals, food,paper making and pharmaceutical industries.
7)For chemical and industrial application.
8) High quality investment and casting body and caps.
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Floating Ball Valve
Design Basis GB API ASME
Design Standard GB/T 12237 GB/T 19672 API 608 API 6D ASME B 16.34
Face To Face GB/T 12221 GB/T 19672 ASME B 16.10 API 6D ASME B 16.10
Connection Flanged GB/T 9113 ASME B 16.5/MSS SP-44/ASME B 16.47
End Butt-Welding GB/T 12224 ASME B 16.25
Material NACE MR0175
Test and Inspection JB/T 9092 GB/T19672 API598 API 6D ASME B16.34
PS: We also can do according to customer's requirements.
1. Locking device to ensure the valve in a right position.
2. Blow-out proof stem: Prevent the stem blowing out caused by the abnormal increase of pressure.
3. Fire-proof Design: When the fire disaster occurs, and the non-metallic seat and sealing parts are damaged
under high temperature, our unique design of metal to metal auxiliary seal structure has an deep effect to
prevent the leakage of the media.
4. Anti-static Design: This structure ensures the safe use under the explosive working conditions.
5. Pressure-relief Design: This design achieves the reliable seal and long service life.
6. Standard ISO-5211 Disc Design: This structure facilitates customer's to replace the operation at any time.
Material for Main Parts
WCB, CF8, CF8M, LCB, LCC, A105, F304/L, F316/L, LF2, etc
25+ENP, A105+ENP, 304, 316, LF2+ENP, etc.
17-4PH,304,316, 1Cr13, 2Cr13, 410,420,LF2 etc.
PTFE, RPTFE, DEVLON, PEEK, 304+ni55, 316+ni55, LF2+NI55, 304+STL,316+STL
Gear Operated Pneumatic Actuator
Why Choose DBV？
1. Factory Overview
2. Quality Control
3. Storage and Warehouse
4. Package and Delivery
5. Honor and Certificate
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内容附件: DBV Catologue of Ball Valve
small size ball valve