User guide

8550 Hansen Road • Houston, Texas 77075 • (Ph) 713.943.0688 • (Fx) 713.944.9445 • www.wattsacv.com
01/05
R
Classic Series
F116-32 (Globe)
F1116-32 (Angle)
Specifications
The Pressure Sustaining and Solenoid (On-Off) Control Valve with Hydraulic Check Feature shall be a pilot
operated diaphragm valve designed to permit flow when upstream pressure is above the adjustable setpoint
of the control pilot, and throttle toward closed when upstream pressure falls below the adjustable setpoint.
The valve shall also act as a Solenoid On-Off Control Valve, opening to allow regulating control action or
closing drip-tight as commanded by the solenoid pilot, and close drip-tight when downstream pressure
becomes greater than upstream pressure.
The main valve shall be a hydraulically operated, single diaphragm actuated, globe or angle pattern valve.
Y-pattern valves shall not be permitted. The valve shall contain a disc and diaphragm assembly that forms
a sealed chamber below the valve cover, separating operating pressure from line pressure. The diaphragm
shall be constructed of nylon reinforced Buna-N, and shall not seal directly against the valve seat and shall
be fully supported by the valve body and cover. Rolling diaphragm construction will not be allowed and there
shall be no pistons operating the main valve or any pilot controls.
The main valve body and cover shall be Ductile Iron ASTM A536, and all internal cast components shall
be Ductile Iron or CF8M (316) Stainless Steel. All Ductile Iron components, including the body and cover,
shall be lined and coated with an NSF 61 Certified Epoxy Coating applied by the electrostatic heat fusion
process. All main valve trim and throttling components (cover bearing, valve seat and disc guide) shall
be Stainless Steel. The valve body and cover must be machined with a 360-degree locating lip to assure
proper alignment.
The disc and diaphragm assembly shall contain a Buna-N synthetic rubber disc with a rectangular cross-
section that is securely retained on 3-1/2 sides by a disc retainer and disc guide. Diaphragm assemblies
utilizing bolts or cap screws for component retention will not be permitted.
The exposed portion of the seat disc shall contact the valve seat and seal drip-tight. The disc and diaphragm
assembly must be guided by two separate bearings, one installed in the valve cover and one concentrically
located within the valve seat, to avoid deflection and assure positive disc-to-seat contact. Center guided
valves will not be permitted. All necessary repairs shall be made from the top of the valve while the body
remains in line.
Pilot control systems for valves 3” and smaller shall contain a Flow Clean Strainer, Adjustable Closing
Speed, (2) Check Valves, 2-Way Solenoid Pilot and Pressure Sustaining Pilot. Pilot control systems for
valves 4” and larger shall contain an external Y-Strainer, Adjustable Closing Speed, (2) Check Valves, 2-Way
Solenoid Pilot, Pressure Sustaining Pilot and Isolation Ball Valves on all body connections. All pilot control
systems shall utilize copper tubing and brass fittings regardless of valve size. The adjustment range of the
pressure relief / sustaining pilot shall be 20-200 psi.
The valve shall be Watts ACV Model F116-32 (globe) or F1116-32 (angle) pattern Pressure Sustaining
Control Valve with Solenoid (On-Off) and Hydraulic Check Features.
PRESSURE SUSTAINING VALVE
with SOLENOID (On-Off) and
HYDRAULIC CHECK FEATURE