Butterfly Valves

Butterfly valves by Mars Valves engineered for industrial flow control applications. Available across ASME Class 150–1500 and NPS 2–48 for demanding process environments requiring precision flow control.

Pietro Fiorentini BF 31 butterfly valve for medium and low pressure gas distribution networks. Hermetic internal seal, 360° butterfly rotation for self-cleaning, chromium-plated spherical seat for low control torques and long service life. Rated to 16 bar UNI PN16 / 19 bar ANSI 150 RF.

Pietro Fiorentini BF 32 butterfly valve for medium and low pressure gas distribution. Features dual sealing rings with leak-check port, chromium-plated spherical seat, and 360° self-cleaning rotation. Rated to 16 bar UNI PN16 / 19 bar ANSI 150 RF across DN 50–250.

Value Valves VF-8A Series high performance triple offset butterfly valves. ANSI 150LB, 300LB and 600LB pressure classes, DN100–DN1200, API 607 fire safe, SIL 3 capable and rated from -100°C to +760°C for the most demanding process applications.

Value Valves VF-7 Series centric butterfly valves. Wafer, lug and flanged end connections across DN40–DN1800. Bi-directional bubble tight shutoff, soft seat design, NSF61 & NSF 372 certified, ATEX approved and ABS certified for shipbuilding. Designed per API 609, ASME B16.34 and ISO 5208.

Value Valves VF-264 Series AWWA double flanged type butterfly valves. DN350–DN2600 (14"–104"), AWWA C504 and C516, pressure classes 25B, 75B and 150B. Double eccentric disc design, bi-directional tight shutoff, hard rubber lining available for seawater service.

Value Valves VF-9A Series high performance double eccentric butterfly valves. Six series across ANSI 150LB and 300LB — soft seat, metal seat + PTFE and metal seat configurations. DN50–DN1200 (2"–48"), SIL 2 certified, API 607 fire safe, ATEX approved and leakage Class IV/V.

Value Valves VF-265A Series ship-building butterfly valves. Flanged type, 10 bar and 16 bar pressure ratings, DN50–DN600 (2"–24"), soft seat, JIS 10K face to face. ABS, LR, BV, DNV, CR and CCS class society certified. Used on over 1,000 ships worldwide since 1980.

Value Valves VF-9A Series high-performance double eccentric butterfly valves with anti-condensation jacket option. ANSI 150LB and 300LB, DN50–DN1200 (2"–48"), soft seat, fire safe metal seat and full metal seat. SIL2 certified, TUV PED(H) and ATEX approved for oil, gas, petrochemical and industrial process applications.

Value Valves cryogenic butterfly valves — double eccentric and triple offset designs for LNG, LPG, petrochemical and nuclear power service. ANSI 150LB, -196°C to +760°C, butt welding, lugged and short flanged end connections. API 609 Monogram, API 607 fire safe, SIL2/SIL3, TUV PED(H) and ATEX certified.

Value Valves VF-75 Series centric butterfly valves with full PTFE or PFA lined disc and body seat. DN50–DN600, up to 16 bar, -35°C to +200°C. Wafer, lugged and flanged end connections. EN 593, API 609 and BS 5155 design standard for chemical, petrochemical, water treatment and food processing applications.

Value Valves VF-3 Series butterfly damper valves — centric, double eccentric and triple eccentric designs. Metal, rubber and PTFE seat options. 2"–96", up to 1093°C. Wafer, short body flange and long body flange. For HVAC, water treatment, flue gas and industrial gas damper applications.