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Itron B34S Series Medium Duty Commercial & Industrial Regulator

Medium Duty Commercial & Industrial Regulator
B34S Series

The B34S is a spring-loaded self-operated regulator available with or without internal relief. It combines the B31 8” diaphragm case with the B34 valve assembly for an economical solution to mid-range commercial and industrial applications. Among its attributes are an adjustable loading ring for controlled boost at high flows, precision breather opening to ensure proper stability under all conditions, and in the R model, a high capacity internal relief valve. All critical parts are either steel or aluminum, not plastic, to ensure reliability.

• Interchangeable brass orifice
• Molded diaphragm consisting of Buna-N and nylon
• Upper diaphragm plate of plated steel
• Stainless steel lever pin
• Zinc with dichromate plated steel lever
• One piece molded Buna-N valve seat
• Alodined aluminum valve stem
• Delrin® vent valve with Buna-N seat
• Spring loaded internal relief valve assembly
• Vent sizes: 1/4”, 3/8”, 3/4” and 1”
• Stainless steel vent screen
• Die cast aluminum seal cap
• Field interchangeable adjustment spring
• CGA 6-18 Approved

Material Construction:
Valve Body: High tensile strength cast iron (ASTM A-126, Class A)
Orifice: Brass
Valve Seat: Buna-N or silicone
Valve Stem: Alodined aluminum
Lever Pin: Stainless steel
Lever: Zinc and dichromate plated steel
Stem Guide: Aluminum
Upper Diaphragm Plate: Zinc and dichromate plated steel
Lower Diaphragm Plate: Die cast aluminum
Diaphragm: Buna-N on Dacron molded to shape
Vent Valve/Seat: Delrin/Buna-N
Vent Screen: Stainless Steel
Adjustment Ferrule: Delrin
Seal Cap: Die cast aluminum
Diaphragm Case: Die cast aluminum
Shipping Weight:
8 Regulators per box: Box Weight: 100 lbs.


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