Advanced Specialty Gas Equipment Regulators for Specific Applications Models SG3882, SG3883

REGULATORS FOR SPECIFIC APPLICATIONS
Models SG3882, SG3883
Ultra High Flow, Balanced Stem, Piston Regulators

This piston-type regulator is designed for use when very high flow rates are required. Typical uses include manifold or trailer applications. Model SG3882 is suitable for non-corrosive service, while Model SG3883 is designed for corrosive gases that are compatible with the materials of construction.
Warning: The Model SG3883 Regulator is not recommended for oxygen service.

Standard Features

High Flow Capacity allows flows in excess of 500 scfm of air at 3000 psig inlet.
Balanced Poppet (stem) minimizes effect of changes in inlet pressure on delivery pressure settings.
Pressure Relief Valve protects regulator components from the effects of overpressurization.
Stainless Steel Filter in Inlet traps foreign matter, extends regulator life and reduces maintenance.
Large Low-Torque Handle allows easy adjustment of delivery pressure.

Optional Features

Mounting Ring permits regulator to be panel mounted

Specifications
Maximum Inlet Pressure: 3750 psig

Inlet Pressure Gauge: 0–4000 psig

Delivery Pressure Range

Delivery Pressure Gauge

Relief Valve: Self-Reseating,1/4" NPT male outlet

Gauge Size: 21/2" Dial

Operating Temperature Range: 0°F to 165°F

Flow Coefficient: Cv = 1.7

Inlet and Outlet Connections: 1/2" NPT female

Supply Pressure Effect: 1.0 psi per 100 psi

Approximate Weight: 7 lbs

Materials of Construction
Body:
   SG3882: Brass Bar Stock
   SG3883: Type 303 SS Bar Stock
Bonnet:
   SG3882: Brass
   SG3883: 300 Series Stn. Stl.
Gauges:
   SG3882: Brass
   SG3883: Type 316 Stn. Stl
Other Metal Parts Exposed to Gas:
   SG3882: Brass and Stn. Stl
   SG3883: 300 Series Stn. Stl
Seats: Teflon®
Seals: Viton® and PCTFE
Filter: Type 316 Stn. Stl

Table I

Part Number		Delivery Pressure (psig)
Brass.	Stainless Steel	Range	Gauge
SG3882-350	SG3883-350	20–350	0–400
SG3882-500	SG3883-500	40–500	0–600

Optional Equipment

Equipment	Part No.
Panel Mounting Ring	PM3804