Knife Gate Valves Browse All 
Select a featured product type to jump to that section.
Unidirectional
Bidirectional
Urethane Lined
O-Port
Push-Through, Slurry Valves
Guided Shear Gate
Zero Pocket
Sold out
TH2500 / TH3500
Triple Offset
Class 150 / 300
Butterfly Valve
The TH2500 / TH3500 is a triple offset, high performance butterfly valve designed for applications in the oil and gas, petrochemical, power generation, and manufacturing industries. The triple offset design ensures a zero-leakage seal for high pressure and high temperature environments, and friction-free operation minimizes wear, extending the valve’s operational lifespan. The TH2500 / TH3500 provides long-term reliability and efficiency for applications requiring precision, and durability.
Please contact us for pricing and availability.
Product Information
Sizes Available
- 3” to 48”
(80mm to 1200mm)
(larger sizes available on request)
Temperature Rating
- -20°F to 800°F (-29°C to 425°C)
Pressure Rating
- ASME Class 150
- ASME Class 300
Standards & Approvals
- Design: API 609 CAT. B
- Flanges: ASME B16.5 (3″ to 24″), ASME B16.47 Series A (30″ to 48″)
- Face to Face: API 609 CAT. B
- Testing: API 598
- Markings: MSS SP-25
- Quality: MSS SP-55, ISO 9001:2015
- Registration: CRN
Features & Benefits
ISO 5211 Mounting
ISO 5211 mounting allows easy installation of various operators and actuators.
Adjustable Packing Gland
Adjustable packing gland also permits field repairs to be completed.
1 ISO 5211 Mounting
2 Adjustable Packing Gland
Graphite Packing
API 622 Low Fugitive Emission graphite packing provides superior sealing minimizing atmospheric emissions.
Upper and Lower Bushings
Upper and lower bushings are made from nitrided 316SS to ensure minimal wear and reliable operation.
Graphite Bearing Wiper Seals
Graphite bearing wiper seals prevent the intrusion of contaminants to protect bearing integrity
3 Graphite Packing
4 Upper and Lower Bushings
5 Graphite Bearing Wiper Seals
Stellite 6 Body Seat
Stellite 6 body seat provides exceptional wear properties for long-term reliability.
Single Piece Shaft
Single piece shaft is constructed from 17-4PH H1150D for maximum strength and corrosion resistance.
6 Stellite 6 Body Seat
7 Single Piece Shaft
Laminated Duplex and Graphite Seat Ring
The laminated Duplex and graphite seat ring provides excellent sealing and wear resistance to ensure 100% shut off.
Metal and Graphite Construction
All metal and graphite construction is inherently fire safe.
8 Laminated Duplex and Graphite Seat Ring
9 Metal and Graphite Construction
Resources
TH2500 Triple OffsetClass 150 BFV
Product Brief25-0002
TH2500 Triple OffsetClass 150 BFV
Technical Brochure25-0008
TH2500 Triple OffsetClass 150 BFV
IOM25-0039
TH3500 Triple OffsetClass 300 BFV
Product Brief26-0030