Model DAP

Description

Model DAP is a high performance, piston-style, pressure reducing regulator with balanced trim. Primarily applied in high outlet pressure applications.

NOTE: Must be applied where the fluids are the same in topworks and main valve. Can only be applied in clean gas or liquid service. May be pressure-loaded or pilot-operated.

Inlet Design Pressure

• Up to 3600 psig (248.2 Barg)

Outlet Pressure

• Standard NPT/BSP: 5-1125 psig (0.34 - 84.4 Barg) 
  When pressure loaded.
• Flgd: 5-1125 psig (0.34 - 84.4 Barg) 
  When pressure loaded.
• When pilot operated: 10"WC - 1125psig (84.4 Barg)

Line Sizes

• 1/2" (DN15)
• 3/4" (DN20)
• 1" (DN25)
• 1-1/2" (DN40)
• 2" (DN50)

End Connections

• Standard: Female NPT (screwed)
• ASME Flanged: 150#, 300#, 600#; Opt-30
• DIN Flanged: PN16, PN25, PN40; Opt-30
• Opt-31 British Standard Pipe Threads

Material : Body / Cover Dome

• SST

SST = Stainless Steel ASTM A351, Grade CF3M

Features

• Versatile: SST body material and multiple trim material combinations to select from. Multiple methods of pressure loading.
• Tight Shutoff: Designed as a soft-seated valve to provide Class IV or VI inboard leakage rates.
• Capacity: High capacity allows smaller body sizes than competitors in majority of applications.
• High Pressure Droop: Highly accurate outlet pressure control, due to absence of range spring in design; provides negligible “droop effect”.
• Pressure Drop: One of highest in the industry when coupled with high flow capacity.
• Trim Design: “DO-ALL” trim design provides FTO and pressure balancing for higher inlet pressure. Results in unmatched sensitivity and stability. Internals are cage-contained within easily removable quick change trim.
• Rangeability: Basic valve gives outstanding rangeability due to close tolerances, balanced trim, and multiple soft seats. Can be as high as 2000:1. 
• Triple Heavy-Duty Guiding: Top and bottom guided to maintain stability and increased trim and seal life.
• Failure Position: Fails closed on loss of loading pressure. Fails open on loss of P1 or P2 pressures with loading pressure still applied.