Matheson Series 3040 Nickel-Plated Brass Regulator

Matheson Series 3040 Single-Stage High-Purity/High Delivery PressureBrass Regulator It has a CGA 580 fitting on the inlet and the outlet has a ¼” NPT to 1/8” Swagelok fitting, which can be changed if needed.

Materials of C**truction

• Gauges: Chrome plated brass

• Body: Nickel plated brass barstock

• Bonnet: Nickel plated brass

• Piston: 316 stainless steel

• Seat: Kel-F 81

• Seals: Teflon & Viton A

Model 3040 Specificati**

• Delivery Pressure Range:  100-2500 PSIG

• Maximum Inlet Pressure: 3500 psig (24,100 kPa)

• Maximum Flow Rate (At 2500 psig, N2) 4600 SCFH (2170 SLPM)

• Flow Capacity (Cv): 0.06

Single-Stage vs. Two-StageBoth single-stage and two-stage regulators operate by reducing the pressure of gas supplied by a cylinder to an appropriate output level. The intake and delivery pressure ranges of regulators do not depend on how many stages they have, but by each regulators mechanical characteristics. When c**idering a single vs. a two-stage regulator there are two things to keep in mind: Droop and Supply Pressure Effect. Droop is the decrease in output pressure caused by an increase in flow rate. Supply Pressure Effect is simply the variation in delivery pressure from the cylinder to the regulator. Single Stage regulators will experience less droop with varying flow rates but a large supply pressure effect and need to be monitored and adjusted by an operator or used in applicati** where supply pressure will remain c**tant. Two-Stage regulators inherently control for variati** in supply pressure while producing a c**tant output and therefore can be used without an operator present and in applicati** which require a very specific delivery pressure.