Red Valve 40 Series Manuale utente

IMPORTANT

Please take a moment to review this manual. Before performing any maintenance on the pressure sensors be sure the pipeline has been

de-pressurized. The improper installation or use of this product may result in personal injury, product failure, or reduced product life. Red

Valve Co., Inc. can accept NO liability resulting from the improper use or installation of this product. If you have any questions or prob-

lems, please call the customer service department at (412) 279-0044. We appreciate your comments. Thank you for choosing Red Valve.

Series 40 / Series 42 / Series 44 / Series 48 Pressure Sensors

Installation, Operation and Maintenance Manual

IOM RV06.02-1

February 2023

OPERATION

Red Valve Sensors are a sealed system.

These Sensors must be properly lled and sealed before any

pressure is applied. Do not loosen the retaining bolts on the Series

40, Series 48 or Series 42, or the end caps on Series 44. If this

equipment is removed, air can be introduced into the sensing uid,

which can cause inaccurate readings. Great care should be taken

to eliminate all air in the system. If the instrumentation is removed,

or the bolts or end caps loosened, the sensor should be properly

relled (see ll instructions).

Gauge cocks can be used to isolate the instrumentation, however,

when the instrument is removed there is going to be some uid lost,

possibly causing an inaccurate reading. Quick disconnect couplings

with two-way check valves, which minimize uid loss, can also be

furnished.

Red Valve sensors have very sensitive sleeves for more accurate

readings. The sleeves do not act as pressure snubbers. If a sensor

is used near a pump or equipment which produces frequent pres-

sure surges, a pressure snubber or liquid-lled gauge should be

used.

NOTE: If a pressure snubber is used, the sensor should be vacuum

lled to ensure complete removal of air from the instrumentation.

FLUID VOLUME: Red Valve Pressure Sensors are manufactured

with a small volume of sensing uid. Some types of pressure

switches require a large amount of sensing uid. If these switches

or multiple instruments are used, check the amount of uid required

to operate the instruments. The amount of usable uid in the sensor

is slightly less than the total uid volume. In sensors with elastomer

sleeves, the approximate amount of usable uid in cubic inches is

.25 x Nominal Pipe Size. If a larger volume of usable uid is needed,

an Extra Large Volume (XLV) sensor should be specied on the

purchase order.

INSPECTION: Red Valve Pressure Sensors should be periodically

inspected for wear or aging of the elastomer sleeve. Since there is

very little sleeve movement, the wear on the sleeve is minimal. The

sleeves are, however, subject to chemical attack from the process

uids. The entire sleeve should be periodically checked for cracks,

cuts and blisters and replaced if necessary. The inspection interval

should be determined by the severity of the service.

INSTALLATION

Standard Series 40 Sensors have ANSI 125/150 class bolting

dimensions, and at ange faces. Series 40W and 48W use

the sleeve face to act as the ange gasket. Only use at face

anges and tighten according to bolt grade and lubrication

used for the installation. The maximum working pressure of a

standard Series 40 is 225 psi. Series 40 sensors with higher

pressure ratings are also available. Series 48 Sensors t

between ANSI 125/150 anges.

1. Full face gaskets should be used, anges with

raised faces may distort the sensor and cause

an inaccurate reading.

2. Bolt the sensor between two anges and

tighten the bolts to the recommended torque.

Series 42 Sensors have a standard NPT end

connections and 1/4"-18 NPT gauge connections.

When installing the sensor in the pipe line, be

sure to tighten the NPT end connections by

gripping the end caps of the sensor.

CODE

A. Epoxy Fill H. Sleeve

B. Hex Socket I. Fill Fluid

C. Body J. End Cap

D. Retaining Bolts K. End Connection

E. Retainer Ring L. Lubricant

F. Flange M. 1/4" NPT

G. Sealant

Teon tape should be used on all NPT connections (end con-

nections and gauge connections).

NOTE: Great care must be taken not to strip the NPT end

connections if PVC end caps are used.

High Pressure Series 42 Sensors can have either a standard

NPT or Autoclave end and gauge connection. When installing

the sensor in the pipe line, be sure to tighten the end connec-

tions by gripping the end cap. Only use Teon tape on NPT

connections.

Series 44 Food Grade Sensors have Tri-Clamp® end connec-

tions, which are interchangeable with the Cherry Burrell "S"

type clamp connection.

1. The end gaskets of the Series 44 sensors are

molded into the sleeve. If the gasket needs to

be replaced, the whole sleeve must be replaced.

Make sure that the sensor is thoroughly sterilized

before installing the sensor in line.

2. Install the appropriate size clamp and tighten

to the recommended torque.

Tri-Clamp is a Registered Trademark of Ladish Co.

REPLACING SLEEVE

Replacement Sleeves are available in a wide variety of rubber

compounds. The following compounds are available: Buna-N,

Pure Gum Rubber, Butyl, EPDM, Neoprene®, Hypalon®and

Viton®. Food grade rubber is available in white: Neoprene,

EPDM, Buna-N and Butyl along with Black Viton.

Neoprene, Hypalon and Viton are Registered Trademarks of E.I.

DuPont.

1. Remove the sensor from the line.

2. Remove the gauge or instrumentation, to

avoid damaging the equipment.

3. Chip away the epoxy ll covering the pipe plug.

4. Remove the pipe plug.

5. Drain the uid from the sensor.

6. Remove the retaining bolts in the Series 40 and

Series 42, unscrew the end caps of the Series

42 and Series 44.

NOTE: Collapse the gasket/liner portion of the sleeve down to

the inside diameter on the Series 44, before unscrewing the

end caps.

7. Remove the sleeve with a blunt instrument.

8. Thoroughly clean the body and anges. Remove

any fragments of rubber or pieces of Teon

tape. Loose fragments may clog gauges or

instruments.

9. Inspect metal parts for sharp edges. Remove

any sharp edges with a ne metal le or ne

grinding wheel. Be sure to remove only enough

metal to smooth surface.

10. Clean the new sleeve and body with a compatible

uid. Thoroughly clean and sterilize the Series

44, body, end caps and sleeve.

11. Install the new sleeve. Be very careful not to

damage the sleeve with sharp instruments

during installation.

NOTE: Series 42 sleeves maybe lubricated with petroleum

jelly (Not compatible with EPDM, natural gum rubber, SBR,

and Butyl at any temp. PVC and PP at elevated temp), soapy

water or another compatible uid to ease installation. Do not

lubricate any other sleeves at this stage.

12. Series 40/48: Bolt the anges of the sensor

together until no gap exists between the anges

and the body. Be sure to tighten all of the bolts

evenly.

NOTE: Sensors with working pressures over 5,000 psi must

have the antiextrusion rings installed before the anges are

assembled.

Teon Series 40/48: Apply a layer of sealant to both sides

of the sleeve anges. Use Dow Corning Silicone Sealant,

number RTV-732-Clear, or equivalent.

Series 42: Lubricate the exposed faces of the sleeve with pe-

troleum jelly (Not compatible with EPDM, natural gum rubber,

SBR, and Butyl at any temp. PVC and PP at elevated temp),

or other compatible lubricant, and screw the end caps into the

body. Tighten the end caps until they are snug.

High Pressure Series 42: Be sure to install the anti-extrusion

rings in sensors with 5000 PSI and greater pressure ratings.

For bolted models, tighten the bolts until there is no gap

between the body and the end caps. Be sure to tighten all of

the bolts evenly.

Series 44 Food Grade Sensor: Lubricate the exposed faces

of the sleeve and the sleeve's outside diameters. Collapse the

gasket/liner area so that the end caps can be screwed on. Be

sure that the sleeve is fully engaged in the body before the

end cap is completely tightened. The end cap should bottom

out on the body when it is fully tightened. Use only approved

lubricants and completely sterile assembly conditions.

13 Reinstall the gauge or instrument. Use three

layers of Teon tape on the NPT connection.

For food grade applications use only approved

sealants.

14. Fill sensor per the instructions below.

Recommended ll uids include: a 50/50 mix

of ethylene glycol and water, distilled water,

FDA approved Silicone oil (Dow Corning 200-

350). Fluorolube, vegetable oil and mineral oil.

NOTE: For food grade applications use only sterile

ll equipment.

STORAGE

Complete sensors and replacement sleeves should be stored in

a cool, dark place. Exposure to heat, extreme cold or sunlight

will damage sleeves. The sleeves also should not be exposed

to electrical equipment which produces ozone, because, this will

damage the sleeves. Red Valve will not be liable for parts which

are improperly stored.

FILL PROCEDURES

GRAVITY FILL

1. Turn sensor as shown in Figure or place the gauge or

instrument in the bottom connection if the sensor is still

in line. If a sensor is lled while it is still in line, be sure that

there is no pressure in the line.

NOTE: Some types of pressure switches will not operate

unless they are mounted upright.

2. Remove the NPT plug. It may be necessary to remove an

epoxy ll covering the plug.

3. Pour ll uid into the port until the threaded hole is

half full.

4. Press on the inside diameter of the sleeve in several

places. Bubbles should be visible in the top NPT con-

nection, and the uid level will decease. The sensor

may also be rotated approximately 45˚ if possible, this will

help to get air bubbles out of the gauge or instrument.

5. Repeat steps 3 and 4 until the uid level in the NPT con-

nection does not change and no bubbles appear.

6. Fill the NPT connection to within a 1/4" inch

of the outside diameter of the sensor.

7. Wrap the pipe plug with three layers of Teon tape. Insert

the plug into the port and tighten.

VACUUM FILL

1. Connect the sensor to the assembly shown.

2. Close valve #2 and open valve #1.

3. Pull a 20" inch of mercury vacuum for at least

2 minutes on the sensor.

NOTE: If a pressure snubber or pulsation dampener is

used, keep the vacuum on the sensor for an additional 3

minutes.

4. Close valve #1 and open valve #2, this allows the ll uid to

be pulled into the sensor.

5. Remove the assembly and ll the NPT connection to within

1/4" inch of the outside diameter of the sensor.

6. Wrap the pipe plug with three layers of Teon tape. Insert

the plug into the port and tighten.

If the gauge or instrument can not be installed in the bottom

connection, ll the sensor as described. Then turn the in-

strument upside down and completely ll it with uid. Cover

the ends with Saran wrap and wrap teon tape around the

threads. Puncture the Saran wrap with a pin and install the

instrument into the gauge connection.

Red Valve • 750 Holiday Drive, Suite 400, Pittsburgh, PA 15220 • 412-279-0044 • [email protected] • RedValve.com

Limited Warranty

Red Valve Company (“Seller”) manufactured products, auxiliaries and parts thereof that we manufacture for a period of twenty-four (24) months from

date of shipment from Seller’s factory, are warranted to the original purchaser only against defective workmanship and material, but only if properly

stored, installed, operated, and serviced in accordance with Seller’s recommendations and instructions.

For items proven to be defective within the warranty period, your exclusive remedy under this limited warranty is repair or replacement of the defective

item, at Seller’s option, FCA Incoterms 2020 Seller’s facility with removal, transportation, and installation at your cost.

Products or parts manufactured by others but furnished by Seller are not covered by this limited warranty. Seller may provide repair or replacement

for other’s products or parts only to the extent provided in and honored by the original manufacturer’s warranty to Seller, in each case subject to the

limitations contained in the original manufacturer’s warranty.

No claim for transportation, labor, or special or consequential damages or any other loss, cost or damage is being provided in this limited warranty.

You shall be solely responsible for determining suitability for use and in no event shall Seller be liable in this respect.

This limited warranty does not warrant that any Seller product or part is resistant to corrosion, erosion, abrasion or other sources of failure, nor does

Seller warrant a minimum length of service.

Your failure to give written notice to us of any alleged defect under this warranty within twenty (20) days of its discovery, or attempts by someone other

than Seller or its authorized representatives to remedy the alleged defects therein, or failure to return product or parts for repair or replacement as

herein provided, or failure to store, install, or operate said products and parts according to the recommendations and instructions furnished by Seller

shall be a waiver by you of all rights under this limited warranty.

This limited warranty is voided by any misuse, modification, abuse or alteration of Seller’s product or part, accident, fire, flood or other Act of God, or

your failure to pay entire contract price when due.

The foregoing limited warranty shall be null and void if, after shipment from our factory, the item is modified in any way or a component of another

manufacturer, such as but not limited to; an actuator is attached to the item by anyone other than a Seller factory authorized service personnel.

All orders accepted shall be deemed accepted subject to this limited warranty, which shall be exclusive of any other or previous warranty, and this

shall be the only effective guarantee or warranty binding on Seller, despite anything to the contrary contained in the purchase order or represented by

any agent or employee of Seller in writing or otherwise, notwithstanding, including but not limited to implied warranties.

THE FOREGOING REPAIR AND REPLACEMENT LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, OBLIGATIONS AND

LIABILITIES, INCLUDING, BUT NOT LIMITED TO, ALL WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR OF MERCHANTABILITY

OR OTHERWISE, EXPRESSED OR IMPLIED IN FACT OR BY LAW, AND STATE SELLER’S ENTIRE AND EXCLUSIVE LIABILITY AND YOUR

EXCLUSIVE REMEDY FOR ANY CLAIM IN CONNECTION WITH THE SALE AND FURNISHING OF SERVICES, GOODS OR PARTS, THEIR

DESIGN, SUITABILITY FOR USE, INSTALLATION OR OPERATIONS. NEITHER ANY PERFORMANCE OR OTHER CONDUCT, NOR ANY ORAL OR

WRITTEN INFORMATION, STATEMENT, OR ADVICE PREPARED BY SELLER OR ANY OF OUR EMPLOYEES OR AGENTS WILL CREATE A

WARRANTY, OR IN ANY WAY INCREASE THE SCOPE OR DURATION OF THIE LIMITED WARRANTY.

Limitation of Liability

IN NO EVENT SHALL SELLER BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, PUNITIVE, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

(INCLUDING, BUT NOT LIMITED TO, DAMAGE TO OR LOSS OF OTHER PROPERTY OR EQUIPMENT, BUSINESS INTERUPTION, COST OF

SUBSTITUTE PRODUCTS, LOSS OF TIME, LOSS PROFITS OR REVENUE, COST OF CAPITAL, LOSS OF USE, OR DIMINUTION IN VALUE)

WHATSOEVER, AND SELLER’S LIABILITY, UNDER NO CIRCUMSTANCES, WILL EXCEED THE CONTRACT PRICE FOR THE GOODS AND/OR

SERVICES FOR WHICH LIABILITY IS CLAIMED. ANY ACTION FOR BREACH OF CONTRACT BY YOU, OTHER THAN RIGHTS RESPECTING OUR

LIMITED WARRANTY DESCRIBED ABOVE, MUST BE COMMENCED WITHIN 12 MONTHS AFTER THE DATE OF SALE.

Sales and Service

For information about our worldwide locations, approvals, certifications and local representative:

Web site: RedValve.com E-Mail: [email protected]

750 Holiday Drive, Suite 400, Pittsburgh, PA 15220 • Phone: 412-279-0044

Red Valve Company reserves the right to incorporate our latest design and material changes without notice or obligation.

Design features, materials of construction and dimensional data, as described in this manual, are provided for your information only

and should not be relied upon unless confirmed in writing by Red Valve Company. Certified drawings are available upon request.

February 2023

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