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Model 570/571/573 Control Valve
Brand: Dyna-Flo Control Valve ServicesThe Model 570 series segmented ball style control valve is used in all kinds of demanding applications, in oil and gas production and chemical process industries.
It is also suited to high flow, low pressure drop services. The 570 series is used in both throttling and on/off control of liquids or gases.
The flangeless 570 valve mates with ASME class 150, 300, and 600 raised face flanges. Models 571 and 573 are RF flanged valves in ASME class 150 (571) and 300 (573).
The straight through unrestricted flow path provides higher capacity than globe style valves. A splined shaft provides accurate control in throttling operations and flexibility in actuation options.
The 570 series, when combined with a Model DFR spring and diaphragm actuator, is a rugged control valve assembly, to which a wide variety of positioners and accessories can be mounted.
The Model 570, 571 and 573 control valves are manufactured to a high level of quality specifications to ensure superior performance and customer satisfaction.
Features- Valve sizes and constructions
- Maximum temperatures
- NACE service
- Easy maintenance
- Lightweight installation
- Adjustable shaft packing
- Field reversible
Specifications
Ball Material
- Alloy 6
- Cast Stainless Steel - CG8M
Bearing Material
- 630 Stainless Steel (17-4 PH)/Carbon-Filled PTFE Lined or PTFE/Carbon-Filled PTFE
- Alloy 6
Enclosure, Body Material
- Carbon Steel (LCC, WCC)
- Cast Stainless Steel (CG8M)
Flange Material
- Flange / Pipe Plug: 316 Stainless Steel
- Flange / Pipe Plug: A105 Steel
- Flange / Pipe Plug: A350 LF2 Carbon Steel
Flange Size - 1-1/2” (DN 40)
- 1-1/2” (DN 40) - 150#
- 1-1/2” (DN 40) - 300#
- 1-1/2” (DN 40) - 600#
Flange Size - 1” (DN 25)
- 1” (DN 25) - 150#
- 1” (DN 25) - 300#
- 1” (DN 25) - 600#
Flange Size - 10” (DN 250)
- 10” (DN 250) - 150#
- 10” (DN 250) - 300#
Flange Size - 12” (DN 300)
- 12” (DN 300) - 150#
- 12” (DN 300) - 300#
Flange Size - 16” (DN 400)
- 16” (DN 400) - 150#
- 16” (DN 400) - 300#
Flange Size - 2” (DN 50)
- 2” (DN 50) - 150#
- 2” (DN 50) - 300#
- 2” (DN 50) - 600#
Flange Size - 3” (DN 80)
- 3” (DN 80) - 150#
- 3” (DN 80) - 300#
- 3” (DN 80) - 600#
Flange Size - 4” (DN 100)
- 4” (DN 100) - 150#
- 4” (DN 100) - 300#
- 4” (DN 100) - 600#
Flange Size - 6” (DN 150)
- 6” (DN 150) - 150#
- 6” (DN 150) - 300#
- 6” (DN 150) - 600#
Flange Size - 8” (DN 200)
- 8” (DN 200) - 150#
- 8” (DN 200) - 300#
- 8” (DN 200) - 600#
Gasket Material
- Spiral Wound Gasket: 316 Stainless Steel
Materials of Construction
- Back-Up Ring, Follower Shaft Pin, Packing Box Ring: 316 Stainless Steel
- Flange Stud: Alloy (B7M) Wave Spring: N07750 Alloy, Spring Washer: N07718 Alloy
- Follower Shaft, Shaft, Shaft Pin, Shaft Key: S20910 Stainless Steel, Seal Protector Washer Stainless Steel
- Live Loaded Packing Follower: PTFE/CF8M, Thrust Washer: Carbon-Filled PTFE
- Shaft Pin: Alloy 6
NACE & NIST
- NACE
Nut & Bolt Material
- Flange Nut: Steel (2HM)
- Packing Nut: 316 Stainless Steel
Operating Temperature
- LCC Body: -46° to 232° C (-50° to 450° F) Standard
- WCC Body: -29° to 427° C (-20° to 800° F) High Temperature
Packing Material
- Graphite
- PTFE
Screw Material
- Seal Protector Screw: 18-8 Stainless Steel
Seat / Seal Material
- Ball Seal: Alloy 6
- Ball Seal: S21800 Stainless Steel
- Radial Seal: Carbon-Filled PTFE/R30003