Big Max BX2001

Big Max BX2001

The Durco Big Max BX2001 high-performance, all-purpose valve is engineered for precise throttling control or on-off service, making it ideal for lighter-weight piping systems and compatible with cost-effective, energy-efficient actuators.

Brand: Durco
Category: Butterfly & Offset
Industries Chemicals: Basic (Organic & Inorganic), Specialty (Fine & Consumer), Petrochemicals, Water: Desalination, Oil & Gas: Downstream Processing
Face-to-Face Standard ASME B16.10, API 609
Guiding Double-offset Disc, Shaft-Guiding, Blind Shaft Hole
Trim NACE MR-0175 Trim, Severe Service Trim
Valve Size 2” to 36”
Pressure Class Standard ASME B16.34
Design Temperature -73°C to 538°C
Bonnet Standard Bonnet
Packing Single and Double PTFE Cup & Cone,, Live-Loaded Single and Double Cup & Cone,, Triple Seal Single and Double Cup & Cone,, Single and Double Grafoil
Pressure Class Range Class 150, 300
Trim Characteristics NA - On-Off Service
Seating Metal-to-Metal: Fire Sealed, TriFlex, Apex, Soft: Ultra High Molecular Weight Polyethylene (UHMWPE)
End Connections Wafer, Lugged
Shut-Off Classification ANSI FCI 70-2 Class IV (metal seat), VI (soft seat)
Body Butterfly - ASTM A216 WCB Carbon Steel, ASTM A351 CF8M 316 Stainless Steel, ASTM A351 CD4MCuN 254 SMO, and more ETO.

Wide application versatility with various design options including wafer and lug bodies, standard PFA, optional UHMWPE, fire-sealed, Apex®, and TriFlex™ seated versions, along with multiple packing choices.

Enhanced fugitive emissions reduction through triple-leak protection, featuring a primary stem seal and two optional secondary seals.

Increased capacity and optimized flow control with a low-profile, double-offset disc design.

Improved safety for personnel and plant by meeting API 609 standards for reliable anti-blowout protection.

Design Standards ASME B16.10 - Face to Face dimensions
ASME B16.34 - Flanged and butt-welding end
ASME B16.5 - Pipe flanges and flanged fittings
MSS SP68 – High pressure, offset seat butterfly valves
ISO 5752 – Metal valves for use in flanged pipe systems – face-to-face and center-to-face dimensions
API 609 – Butterfly valves, lug-type and wafer type
MSS SP61 – Pressure Testing
API 607 – Fire test procedures and leakage requirements
NACE MR-0175
Certifications API 607 – Fire Safe
ISO 15848 – Fugitive Emissions
Quality ISO 9001