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 for the most up-to-date version of this document.

V46 and V47 Repair Parts and Service Instructions

Applications

The V46 pressure-actuated and V47 temperature-actuated water-regulating valves are used for water-cooled 
condensers, bypass service on refrigeration systems, engine cooling, and various industrial applications

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Installation Guidelines

Follow these guidelines to install the V46 and V47 valves.

Flush liquid lines to remove filings, chips, and other foreign matter before connecting to the valve.

Make liquid line connections so the flow through the valve is in the direction of the arrow on the body casting.

Make sure that the bulb and capillary do not rub against any metal obstruction that can wear and damage the 
element.

Tighten the connector and seal, if furnished with the closed tank connector by tightening the small gland nut on 
heavy tubing near the bulb.

Avoid mounting the valve where the bulb might be partly above operating liquid level or surrounded by an air 
pocket.

Mount the valve vertically with the bellows facing downward.

IMPORTANT:

The V46 and V47 valves are intended to control liquid flow under normal operating conditions. 

Where failure or malfunction of the V46 and V47 valves could lead to personal injury or property damage to the 
controlled equipment or other property, additional precautions must be designed into the control system. 
Incorporate and maintain other devices, such as supervisory or alarm systems or safety or limit controls, 
intended to warn of or protect against failure or malfunction of the V46 and V47 valves.

This product is made of a copper alloy, which contains lead. The product is therefore not to be used on drinking 
water.

Risk of Environmental Damage

Avoid sharp bends in the capillary tubes. Sharp bends can weaken or kink capillary tubes, which may result in 
refrigerant leaks or restrictions of flow.

V46 and V47

Repair Parts and Service Instructions

Part No. 24-8414-12, Rev. D

Code No. LIT-121695

Issued  August 2018

Summary of Contents for V46 Series

Page 1: ...ulb Avoid mounting the valve where the bulb might be partly above operating liquid level or surrounded by an air pocket Mount the valve vertically with the bellows facing downward IMPORTANT The V46 and V47 valves are intended to control liquid flow under normal operating conditions Where failure or malfunction of the V46 and V47 valves could lead to personal injury or property damage to the contro...

Page 2: ...he throttling point The all range pressure actuated valve settings can be adjusted for both low pressure refrigerant ranges of R 134a and higher pressure refrigerant ranges of R 22 R 502 Manual Flushing To clear any sediment that may accumulate valves may be manually flushed by inserting screwdrivers under both sides of the main spring and lifting upwards to flush the valve Manual flushing does no...

Page 3: ...e IMPORTANT To decrease the pressure in the sensing element on the V47 valves cool the bulb by submerging it in ice water Do not remove the bulb from the ice water until the element is ready to be reinstalled Otherwise the pressure increases in the sensing element resulting in a valve that is hard to reassemble Figure 2 Valve Components Assembly Figure 3 V46 and V47 2 in and 2 1 2 in ...

Page 4: ... Replace the guide plate gasket and bellows sealing ring Figure 4 10 Assemble the sensing element to the valve body with the bellows push rod new diaphragms guide plate gasket and bellows sealing ring in place 11 Assemble the new disc disc retainer and extension sleeve a Apply a small amount of grease to the grooves on the bottom of the new extension sleeve and the top of the new disc retainer Pla...

Page 5: ...ctions 5 16 Before leaving the installation run the system through at least one complete operating cycle to be sure the valve is operating correctly Figure 4 Guide Plate Gasket and Bellows Sealing Ring Identification Gasket for pressure Push Rod ...

Page 6: ...adjusting screw spring and valve spring guide Figure 6 c Clean off any excess grease on the valve spring guide d Place the new ISO loss washer over the guide plate e Replace the valve spring guide spring range adjusting screw and spring housing IMPORTANT To decrease the pressure in the sensing element on the V47 valve cool the bulb by submerging it in ice water Do not remove the bulb from the ice ...

Page 7: ...ssemble the new valve stem disc disc cup and disc stud and place into the valve body Figure 5 10 On 1 in and larger pressure valves and all temperature valves replace the guide plate gasket and bellows sealing ring Figure 8 11 If servicing a V47 or V46 valve other than low flow place new diaphragms on the sensing element end of the valve stem assembly Use two diaphragms on 3 8 in 1 2 in and 3 4 in...

Page 8: ... bellows push rod Attach the sensing element to the valve body See Figure 7 13 Place two new diaphragms on the spring housing side of the valve body Screw into place with the seat guide post Figure 7 14 Place the spring housing assembly over the seat guide post and secure in place with the four housing screws 15 Adjust the valve to desired opening point Then manually flush the valve See the Manual...

Page 9: ... All Types Seat Guide Post 1 1 1 1 1 1 1 1 1 1 1 Disc Stud 1 1 1 1 1 1 1 1 1 1 1 Disc Cup Retainer 1 1 1 1 1 1 1 1 1 1 1 Valve Disc 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Valve Seat 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Valve Stem 1 1 1 1 1 1 1 1 1 1 1 Rubber Diaphragm1 4 4 4 4 5 5 5 5 4 4 4 5 5 5 5 5 Guide Plate Gasket 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Bellows Sealing Ring 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Valve Assembly...

Page 10: ...JOHNSON CONTROLS 507 E MICHIGAN ST MILWAUKEE WI 53202 USA JOHNSON CONTROLS C O CONTROLS PRODUCT MANAGEMENT NO 22 BLOCK D NEW DISTRICT WUXI JIANGSU PROVINCE 214142 CHINA 10 Extension Sleeve 1 1 1 Seat Wrench 1 1 1 1 1 1 1 1 1 1 1 Sensing Element Contact Application Engineering at 414 524 5535 Stem Washer 1 ISO loss Washer2 1 1 1 O ring Seals 2 2 1 3 8 1 2 and 3 4 in valves require two diaphragms on...

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