Lined BTV

Lined BTV

The BTV Lined Butterfly Valve is a highly reliable, leak-free valve specifically designed to meet the stringent requirements of corrosive chemical applications. Engineered for durability and performance, it offers exceptional service across a wide range of demanding conditions in process industries, ensuring long-lasting, dependable operation.

Brand: Durco
Category: Plug
Industries Chemicals: Basic (Organic & Inorganic), Specialty (Fine & Consumer), Oil & Gas: Downstream Processing
Face-to-Face Standard ISO 5752/20, API 609
Guiding Double-D shaft drive for positive valve position indication, simplifies automatic operation
Trim Thick PFA or UHMWPE encapsulated disc, with nickel-plated ductile iron substrate; available in various alloys
Valve Size 2” to 24”
Pressure Class Standard MSS SP67, API 609, ISO 5752/20
Design Temperature -30°C to 177°C
Packing Triple-seal stem design with PTFE-covered PFA convolutions and Viton O-rings for atmospheric sealing
Pressure Class Range Full vacuum up to 150 psi (Class 150)
Trim Characteristics NA - On-Off Service
Seating Spheroidal seat design for 360° contact, live-loaded elastomer seat energizer for constant line seal performance
End Connections Wafer, Lugged
Shut-Off Classification Bubble-tight shutoff: API 609, MSS SP67; tested to 150 psi (1034 kPa) for seat and 225 psi for stem seals
Liner Material PTFE, UHMWPE, Sentinel (TM)
Body Lined Butterfly - ASTM A395 Ductile Cast Iron, ASTM A351 CF8M 316 Stainless Steel , Titanium split body with epoxy-coated finish, and more ETO

Minimized downtime with a standard lined body and disc that provide robust protection against the most corrosive chemicals.

Reduced maintenance costs thanks to the triple-seal design and live-loaded shaft seal, which requires no adjustment.

Enhanced application versatility with a wide range of metal disc options for added protection in demanding conditions.

Improved abrasion resistance for applications up to 93°C (200°F) with the optional UHMWPE disc and body.

Design Standards MSS SP67, API 609, ISO 5752/20, ASTM F423-82 (compatible with fluoropolymer-lined pipe)
Certifications Spark tested at 20,000 volts
Hydrostatically tested per MSS SP25 prior to shipment
Quality ISO 9001