Cla-Val 136-01/636-01 Solenoid Control Valve Quick Manual - Manual

INTRODUCTION
The Cla-Val Model 136-01/636-01 Solenoid Control Valve is an automatic
valve designed to either close drip tight or open fully by means of a three-
way solenoid control. It is a hydraulically operated, solenoid controlled,
diaphragm type globe or angle valve.
INSTALLATION
1. Allow sufficient room around the valve assembly to make adjustments
and for maintenance.
Note: Before the valve is installed, the pipeline should be flushed to
remove all chips, scale and foreign matter.
2. It is recommended that gate or line block valves be installed upstream
and downstream of the Model 136-01/636-01 to facilitate isolating the
valve for maintenance.
3. Place the valve in the line with flow in the direction of flow arrows or by
the inlet nameplate. Check all fittings and hardware for proper makeup
and that no apparent damage is evident. Be sure main valve cover
nuts/bolts are tight. Pressure in some applications can be very high so be
thorough in checking and inspecting for proper installation and makeup.
4. Cla-Val Valves operate with maximum efficiency when mounted in hor-
izontal piping with the cover UP; however, other positions are acceptable.
Due to size and weight of cover and internal components of six inch valves
and larger, installation with the cover up is advisable. This makes period-
ic inspection of internal parts readily accessible.
5 . Caution must be taken in the installation of this valve to insure that
galvanic and/or electrolytic action does not take place. The proper use
of dielectric fittings and gaskets are required in all systems using dis-
similar metals.
6. Comply with local and national electrical codes when wiring the
Solenoid Control.
OPERATION AND START-UP
1. Prior to pressurizing the valve assembly make sure the necessary
gauges to measure pressure in the system are installed as required by the
system engineer. A Cla-Val Model X101 Valve Position Indicator can be
installed in the center cover port to provide visual indication of the valve
diaphragm assembly position during start-up.
CAUTION: During start-up and test procedures a large volume of water
may be discharged downstream. Check that the downstream venting is
adequate to prevent damage to personnel and equipment. If the main
valve closes too fast it may cause surging in upstream piping.
2. If isolation valves (B) are installed in pilot system open these valves.
(see schematic).
3. The 3-way Solenoid Control (2) applies or relieves pressure in the
main valve cover chamber and provides the following action:
Note: Solenoids are not reversible because of different internal construc-
tion between Energize to open and De-energize to open solenoids.
4. Check that solenoid control (2) is set to close main valve.
Slowly open the gate or block valve at inlet of the main valve.
Solenoid Control Valve
136-01/636-01
MODEL
INSTALLATION / OPERATION / MAINTENANCE
SOLENOID CONTROL (2)
POSITION
ENERGIZED
DE-ENERGIZED
PORT
FLOW
1 TO 2
3 TO 1
E NERGIZED T O O PEN
136-01 S ERIES
MAIN VALVE (1)
OPEN
CLOSED
D E -E NERGIZED T O O PEN
136-01 S ERIES
MAIN VALVE (1)
CLOSED
OPEN
5. Carefully loosen tube fittings at highest points and bleed air from sys-
tem. Carefully loosen the plug at top of main valve cover. If X101 Valve
Position Indicator is installed, carefully open the bleed valve at top of
Indicator. Bleed air from cover and tighten plug or bleed valve. Tighten
tube fittings.
6. Slowly open downstream gate or block valve. Check the operation of
the valve by energizing and de-energizing the solenoid. The valve should
open fully and close drip tight. The valve needs minimum 5 psi differen-
tial under flowing codition.
MAINTENANCE
1. Cla-Val Valves and Controls require no lubrication or packing and a
minimum of maintenance. However, a periodic inspection schedule
should be established to determine how the fluid handled is affecting the
efficiency of the valve assembly. Minimum of once per year.
2. Repair and adjustment procedures of the Cla-Val Hytrol main valve
and control components are included in a more detailed IOM manual. It
can be downloaded from our web site (www.cla-val.com) or by contacting
a Cla-Val Regional Sales Office.
3. When ordering parts always refer to the catalog number and stock
number on the valve nameplate.
SYMPTON PROBABLE CAUSE REMEDY
Main Valve
Fails to Close
No flow condition Inspect downstream piping for
closed valve or obstruction
Too low pressure differential
across valve
(Needs minimum 5psi differential
under flow coditions) Restrict valve opening with
Cla-Val X102A
limiting assembly
(Contact Cla-Val)
Closed isolation valves in pilot
system, or in main line Open valves
Lack of cover chamber pressure Check upstream
pressure, tubing needle
valves for restriction
Diaphragm damaged Replac diaphragm
Mechanical obstruction
Object lodged in valve
Worn disc Remove obstruction
Replace disc
Badly scored seat Replace seat
CNA needle valve closed Open this speed control to
allow pressure to cover
Main Valve
Fails to Open Closed isolation valves in pilot
system, or in main line
Insufficient line pressure
Diaphragm assembly inoperative Open valves
Clean & polish stem
Replace and defective or
damaged parts
Main Valve
Vibrates when
Closed Air in cover Bleed all air from valve