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8 inch Model 380/381 Control Valve
Brand: Dyna-Flo Control Valve ServicesThe Dyna-Flo 380 Series Valves are a heavy-duty cage guided globe style control valves designed for high pressure applications.
These valves are used in all kinds of demanding applications, including oil and gas production and chemical process.
Both Model 380/381 are cage guided control valves with balanced plugs. Model 380 control valves are capable of class V shutoff at process temperature below 450° F (232° C).
Model 381 control valves are designed for high temperature / high pressure applications and are well suited for general applications that do not require tight shutoff.
A bolted bonnet is standard and a typical actuator is a Dyna-Flo Model DFC, DFO or DFLP linear actuators.
Features- High quality construction
- Versatility
- Field service friendly
- Highly durable design
- High flow capacity
- Sour gas service capability
- Shut off Classification
Specifications
Enclosure, Body Material
- 316 Stainless Steel - ASTM A351 CF8M, 1.4408
- Carbon Steel (LCC or WCC)
Flange Size - 8” (DN 200)
- 8” (DN 200) - 150#
- 8” (DN 200) - 1500#
Gasket Material
- Cage Gasket: Alloy 400 (N04400)
- Seat Ring Gasket: Alloy 600 (N06600)
- Seat Ring Gasket: Graphite
Materials of Construction
- Anti-Extrusion Ring: PolyEtherEtherKetone (PEEK)
- Back-Up Ring, Retaining Ring: 316 Stainless Steel
- Back-Up Ring: 316L Stainless Steel
- Piston Ring: Graphite
NACE & NIST
- NACE
O-Ring Material
- EPDM
- Nitrile
- Viton
Operating Temperature
- -198° to 427° C (-352° to 800° F)
Packing Material
- Graphite
- PTFE
Seat / Seal Material
- Seal Ring: PTFE/Elgiloy
- Seat: Metal
Stem Material
- Valve Stem: Stainless Steel (S20910)
Welded Connection
- 8” Butt Weld End