Product Brochure

Purpose
To automatically feed water to a system whenever pressure in the system drops below
the pressure setting of the valve. The Dual Control combines the Boiler Feed Valve
with an in-line Pressure Relief Valve connected at the outlet end.
Boiler Feed Valve
Model 335
Models 329 & 329-T
Models
Performance Data
Body Inlet Outlet
A B C Ship Wt.
Max Fluid
Temp
Max Supply
Press.
Pressure
Range
Factory
Setting
F° C° psi kpa psi kps psi kpa in. mm in. mm in. mm lbs. Kg
329
212˚ 100˚ 100 689 10-25 69-172 12 83
Cast Iron 1/2" Union SWT 1/2" NPT 4-1/4 108 3-3/4 95 1-3/8 35 1.75 1.1
329-T Cast Iron 1/2" Union NPT 1/2" NPT 4-3/4 111 3-3/4 95 1-3/8 35 1.75 1.1
335 Brass 3/4" NPT 3/4" NPT 3-3/4 95 3-3/4 95 1-3/8 35 2.4 1.1
335U-050-C Brass 1/2" Union SWT 1/2" NPT 4-1/4 108 3-3/4 95 1-3/8 35 2.5 1.2
335U-050-T Brass 1/2" Union NPT 1/2" NPT 4-1/4 108 3-3/4 95 1-3/8 35 2.5 1.2
335U-075-C Brass 3/4" Union SWT 3/4" NPT 4-1/2 114 3-3/4 95 1-3/8 35 2.5 1.2
335U-075-T Brass 3/4" Union NPT 3/4" NPT 4-1/4 108 3-3/4 95 1-3/8 35 2.5 1.2
Boiler Feed Valves, Dual Controls, Backflow Preventers and
Combination Boiler Feed & Backflow Preventer Valves
Features
• Fast Fill Rate on All Models
• Exclusive Fast Fill Lever Lock
• Built-In Check to Prevent Emptying
the System if Incoming Pressure Fails
• Adjustable Set Pressure of 10 to 25 psi
• Pressure Setting Adjustment
Separated from Fast Fill Lever for
Easy, Fast Adjustment
• Both the Backflow Preventer and
the Combination Boiler Feed &
Backflow Preventer Valve Carry
These Certifications:
Submittal Data # 101-005
Effective: 01/26/18
Supersedes: 06/17/13
* Dimensions for reference purposes only.
Listing 1012 - 2009
Listing B64.3 - 11