Manual

8550 Hansen Road • Houston, Texas 77075 • (Ph) 713.943.0688 • (Fx) 713.944.9445 • www.wattsacv.com

01/05

Classic Series

• Throttles to reduce high upstream pressure to

constant lower downstream pressure

• Throttles to maintain minimum upstream pressure

• Closes quickly when downstream pressure

exceeds reduced pressure setpoint

• Ideal for use when high capacity on-off

equipment is installed downstream

• Reducing, Sustaining and Surge Control

setpoints are separately adjustable

P/L

Y/FC

CLOSES VALVE

OPENS VALVE

FLOW

(AOS)

1 - Main Valve (Single Chamber)

2 - Pressure Reducing Control

3 - Downstream Surge Control

4 - Pressure Sustaining Control

5 - Fixed Oriﬁce

° X - Isolation Cocks

° FC - Flo-Clean Strainer

° Y - Y-Strainer (Replaces Flo-Clean)

° ACS - Adjustable Closing Speed

(Replaces Fixed Oriﬁce)

° AOS - Adjustable Opening Speed

° P – Position Indicator

° L – Limit Switch

STANDARD COMPONENTS OPTIONS and ACCESSORIES

F115-43 (Globe)

F1115-43 (Angle)

f115-43 link

PRESSURE REDUCING and

SUSTAINING VALVE with

SURGE CONTROL FEATURE

PAGE 1
PRESSURE REDUCING and SUSTAINING VALVE with SURGE CONTROL FEATURE R 01/05 F115-43 (Globe) F1115-43 (Angle) Classic Series • Throttles to reduce high upstream pressure to constant lower downstream pressure • Throttles to maintain minimum upstream pressure • Closes quickly when downstream pressure exceeds reduced pressure setpoint • Ideal for use when high capacity on-off equipment is installed downstream • Reducing, Sustaining and Surge Control setpoints are separately adjustable 3 4 2 P/L (AOS) X