Welcome to ROBVALVE! English | 简体中文
English | 简体中文
BUV31 Triple/Quadruple Offset Valve


BUV31 Triple/Quadruple Offset Valve

Size Range:
3" - 160" (DN80 - DN4000)
Pressure Rating:
Class150, Class300, Class600, Class900, Class1500, PN25, PN40, PN63, PN100, PN160, PN250
Connection Type: 
wafer, lug, double flanged, butt-welded.
Temperature Range:
-254 ℃~ +820 ℃ (-490℉ ~ +1508℉)
Operation Type:
manual, pneumatic, electric, hydraulic, Electric-liquid linkage etc.
Applicable Range:
Suitable for various severe conditions, from vacuum to ultra-high pressure, from cryogenic to ultra-high temperature.
Larger sizes and higher pressures can consult from factory.


Standards and Specifications

Design and manufacture standard: 
API 609, MSS SP-68, EN593, EN12569
Temperature and pressure rating:
ASME B16.34, EN 12516-1
Low temperature standard: 
BS 6364, MSS SP-134
Mounting flange:
BS EN ISO 5211
Connection flange: 
ASME B16.5, ASME B16.47, ISO 7005, EN 1092-1
Face to face: 
API 609, MSS SP-68, ISO 5752, EN 558
Inspection and testing standard:
API 598, ISO 5208, EN 12266-1, ANSI/FCI 70-2
BS EN ISO 10497, API 607, API 6FA
Valve mark conform to: 
MSS SP-25, EN19
Low emission conform to:
ISO 15848-1, TA-Luft, EPA Method 21


CS and low temperature CS:
WCB, LCB, LCC, etc
High temperature alloy steel:
WC6, WC9, C5, C12, etc
Austenitic stainless steel:
CF8M, 1.4408, CF8, CF3M, CF3, CF8C, etc
Duplex and super duplex stainless steel: 
CD3MN, CD3MWCuN, etc
High alloy austenitic stainless steel:
6Mo(CN3MN), 20 alloy (CN7M), etc.
Alloy materials: 
Monel, Hastelloy, Inconel, Nickel-aluminum-bronze, titanium, etc

Industrial applications

Chemical, Refinery, Power Plants, LNG, Air Seperation, Offshore drilling platform, Metallurgical industry, sea water desalination, District heating.