Model 345

Description

The Model 345 is a piston style, heavy duty, high pressure reducing regulator that can include balanced trim with a TFE or nylon seat for controlling down stream pressure between 50 and 3000 psig (3.4 and 207 Barg), with inlet pressures up to 4000 psig (275 Barg). The metal seated version is an unbalanced trim design. Where trim wear is expected, metal seating surfaces may be stellited. Sizes 1/2", 3/4" and 1" (DN15, 20, and 25). Available options include flanged end connections.

Inlet Design Pressure

• Up to 4000 psig (275 Barg)

Outlet Pressure

• 50 to 3000 psig (3.4 to 206 Barg) with multiple range springs.

Line Sizes

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

End Connections

• Standard: NPT female
• Opt-30: 300#, 600#, 900# or 1500#
• RF flanges with SST body
• Opt-34: 14” Face to Face Flange
• Dim

Material Combinations: Body / Spring Chamber

• AL BRZ/BRZ
• SST/BRZ

AL BRZ = Aluminum Bronze ASTM B148, Alloy C95500
SST = Cast Stainless Steel ASTM A351, Gr. CF8M
BRZ = Cast Bronze ASTM B584, Alloy C90300

Features

• High Pressure: High inlet and outlet pressures; high pressure drops.
• Balanced Trim: Minimizes the effect of large changes in inlet pressure such as those encountered with bottled gas.
• Tight Shutoff: TFE or nylon seat provides tight shutoff.
• Adjustment Ease: Radial roller bearings to reduce frictional forces and wear. Standard T-bar handle.