Series 4500 Pressure Reducing Regulator
Two Stage, Diaphragm Type

Typical Applications:

• Cylinder bottle applications
• Gas and liquid chromatography
• High purity carrier gases
• Zero, span and calibration gases
• Lecture bottle applications
• Research and development labs
• Low flow purge systems
• Industrial controls

The Model 4500 shown is nickel plated brass with inlet / outlet gauges, 1/8 FNPT gauge ports, 1/4 FNPT inlet & outlet ports, outlet shut off valve, interstage relief valve, 1/8 FNPT captured bonnet ports and 1_7/16-20 panel mounting threads.

Specifications:

♦ Maximum control pressure:

• 1-25 PSIG

• 1-50 PSIG

• 5-100 PSIG

♦ Maximum inlet pressure: 3500 PSIG

♦ Flow Capacity: Cv 0.08

Materials of Construction:

♦ Body & Bonnet:

• SAE 360 Brass

• SAE 360 Brass, Electroless Nickel Plated

• 316L Stainless

• 6061-T6 Aluminum, Clear Anodized

• Monel®

♦ Diaphragms:

• Neoprene

• 316 Stainless Steel

♦ Stainless Diaphragm Seal: Teflon®

♦ Main Valve Seal: Teflon®

♦ Valve Seat: Teflon®

♦ First Stage Relief Valve Seal: Teflon®

Porting:

♦ Inlet Porting:

• 1/8" FNPT

• 1/4" FNPT

• #4 SAE J1926

• #6 SAE J1926

• C-10 (5/8-18 UNF)

• All CGA Connections Available:

 – CGA 165, 180, 320, 350, 510, 540, 580, etc.

♦ Outlet Porting:

• 1/8" FNPT

• 1/4" FNPT

• #4 SAE J1926

• #6 SAE J1926

• 9/16-18 Male "B" Thread Hose Connection

Options:

• Anodized Colors for Aluminum Bodies & Bonnets

• Captured Bonnet Vent

• Gauges

• Panel Mount Bonnet & Nut

• Outlet Shut Off Valve

• Private Label

Cross Sectional View

Flow Chart

Regulator Discharge Characteristic Curves
(1500 PSIG Inlet Pressure)

Installation Dimensions