CHECKMATE ULTRAFLEX SLIP-IN INLINE CHECK VALVES

Specification TT-CMUF-SL

PART 1: GENERAL

1.01 SUBMITTALS

A. Submit product literature that includes information on the performance and operation of the valve, materials of construction, dimensions and weights, elastomer characteristics, headloss, flow data and pressure ratings.

B. Upon request, provide shop drawings that clearly identify the valve materials of construction and dimensions.

1.02 QUALITY ASSURANCE

A. Supplier shall have at least twelve (12) years experience in the design and manufacture of “CheckMate™” style elastomeric check valves.

B. Manufacturer shall have designed, fabricated and have at least five (5) current installation of a “CheckMate” style elastomeric check valves in the 72” (1800mm) size.

Manufacturer must provide documentation, including project name, location, and references.

C. Manufacturer shall have conducted independent hydraulic testing to determine headloss, jet velocity and vertical opening height characteristics on a minimum of three

(3) sizes of CheckMate Valves ranging from 6” (150mm) through 24” (600mm). The testing must have been conducted for free discharge (pressurized and open channel flow discharging to atmosphere) and submerged conditions.

PART 2: PRODUCTS

2.01 CHECKMATE ULTRAFLEX ELASTOMERIC CHECK VALVES

A. Check Valves are to be all rubber and the flow operated check type with slip-in cuff connection. The entire CheckMate Ultraflex Valve shall be ply reinforced throughout the body, saddle and bill, which is cured and vulcanized into a one-piece unibody construction. A separate valve body or pipe used as the housing is not acceptable. The valve shall be manufactured with no metal, mechanical hinges or fasteners, which would be used to secure any component of the valve to a valve housing. The port area of the saddle shall contour into a circumferential sealing area (the “bill”) that is concentric with the pipe which shall allow passage of flow in one direction while preventing reverse flow. The entire valve shall fit within the pipe inside diameter. The saddle area of the valve must be flat, not conical, and integral with the rubber body above centerline in order to not produce any areas or voids that can collect or trap debris. The valve must be easily installed in pipes with poor end condition without the need to modify or utilize the headwall or structure to seal and anchor the valve. Once installed, the CheckMate Ultraflex Valve shall not protrude beyond the face of the structure or end of the pipe.

B. The CheckMate Ultraflex Valve shall incorporate multiple concave grooves molded integrally into the flat saddle wall thickness extending longitudinally a minimum of 80% of the length of the saddle to reduce opening resistance and reduce headloss.

C. The CheckMate Ultraflex Valve shall incorporate a custom shaped notch in the end of the bill to reduce cracking pressure. The notch shall be at the invert/bottom of the bill and symmetrical about the valve centerline. The longitudinal length of the notch shall be no greater than half the length of the bill.

D. The outside diameter of the upstream and downstream sections of the valve must be circumferentially in contact with the inside diameter of the pipe.

E. Slip-in style CheckMate Ultraflex Valves will be furnished with a set of stainless steel expansion clamps. The clamps, which will secure the valve in place, shall be installed in the upstream or downstream cuff of the valve, depending on installation orientation, and shall expand outwards by means of a turnbuckle. Each band shall be pre-drilled allowing for the valve to be pinned and secured into position in accordance with the manufacturer’s installation instructions.

F. Manufacturer must have flow test data from an accredited hydraulics laboratory to confirm pressure drop and hydraulic data.

E. Company name, plant location, valve size patent number, and serial number shall be bonded to the check valve.

2.02 FUNCTION

A. When line pressure exceeds the backpressure, the line pressure forces the bill and saddle of the valve open, allowing flow to pass. When the backpressure exceeds the line pressure, or in the absence of any upstream or downstream pressure, the bill and saddle of the valve is forced closed, preventing backflow.

2.03 MANUFACTURER

A. All valves shall be Series CMUF-SL slip-in CheckMate Ultraflex Valves as manufactured by Tideflex Technologies®, A Division of Red Valve Company, Carnegie, PA 15106. All valves shall be manufactured in the U.S.A.

PART 3: EXECUTION

3.01 INSTALLATION

A. Valve shall be installed in accordance with manufacturer’s written Installation and Operation Manual and approved submittals.

3.02 MANUFACTURER’S CUSTOMER SERVICE

A. Manufacturer’s authorized representative shall be available for customer service during installation and start-up, and to train personnel in the operation, maintenance and troubleshooting of the valve.

B. If specified, the manufacturer shall also make customer service available directly from the factory in addition to authorized representatives for assistance during installation and start-up, and to train personnel in the operation, maintenance and troubleshooting of the valve.

CheckMate UltraFlex® Inline Check Valve Installation, Operation and Maintenance Manual

IMPORTANT

Please take a moment to review this manual. The improper installation or use of this product may result in personal injury, product failure, or reduced product life. Tideflex® can accept NO liability resulting from the improper use or installation of this product. If you have any questions or problems, please call the customer service department at (412) 279-0044. We appreciate your comments. Thank you for choosing Tideflex®.

The revolutionary design of the CheckMate® Inline Check Valve provides superior backflow prevention and odor mitigation in stormwater, CSO and SSO outfalls. The CheckMate's® custom-engineered, all-rubber unibody design eliminates costly backflow from oceans, rivers and interceptors. The valve's unique elastomer fabric and wire reinforced design provides a proven record of maintenance-free performance, cost savings and results that no other inline check valve can match. The CheckMate® is built to suit all your site-specific and flow needs.

The CheckMate® has a 100% fabric and elastomer construction that eliminates corrosion problems. Because the CheckMate® is made with a unibody construction, there are no mechanical components that trap debris, corrode or fail.

The CheckMate® Valve's inherent flexibility virtually eliminates seating problems. The CheckMate® remains in the closed position until forward differential pressure opens it. The fabric-reinforced elastomer CheckMate® Valve seals around silt and small debris, preventing unwanted backflow.

The major advantage of the CheckMate® Valve is its extremely low headloss. The CheckMate® can open to a near full pipe diameter.

This maximizes flow capacity of the outfall, which is particularly beneficial in low-lying areas where limited driving head is available.

Tideflex® recommends pinning all CheckMate® Valves for added security and stability. CheckMate’s® effectively have a zero face-to-face dimension because they fit completely inside of the pipe.

No modification of piping is required provided adequate pipe length exists.

IOM RV08.02-1

November 2024

1. Product Shipping

Valve sizes 3" - 18" are furnished with one clamp. Valves 20" - 60" ship with two clamps. 72" valves ship with three clamps.

NOTE: A clamp is installed on each end of the valve to keep the valve’s shape during transit and storage. Once the installation orientation is determined the CheckMate® valve will be clamped from either the upstream or downstream side. For valves with two or three clamps, they can be installed onto the same side of the valve and offset from each other, as illustrated in Figure 1.

2. Unpacking & Lifting

Do not use sharp tools when unpacking this product as it may damage the valve.

For larger CheckMate® valves, the valve should be lifted with either a sling or with supports around the O.D. at each side of the valve to ease the installation procedure. Do not place an object through the valve in order to lift.

3. Inspection of Pipe I.D.

Check the inside diameter (I.D.) of the pipe section for rough or dam-aged areas. The inside surface should be uniform and relatively smooth.

Long gouges or cracks in the pipe may allow water to pass and should be filled prior to installation. Do not attempt to install a CheckMate® in a smaller pipe I.D.

4. Pipe I.D. Measurements

The pipe I.D. is to be checked in the field. It should be a consistent diameter for the length of valve and should not be out of round. When there is a +/- tolerance on the pipe I.D., the CheckMate® Valve should be ordered to the smallest pipe I.D.. Then, rubber adhesive strip can be applied to both CheckMate® cuffs to build the cuff O.D. up to the actual pipe I.D. See procudure in #5.

NEVER...

Install the valve at an angle

NEVER...

Install the Valve Backwards

NEVER...

Use Sharp Tools on Rubber

NEVER...

Exceed Design Back Pressure

Clamp* Cuff

Bill (Sealing Area)

*Clamps are installed in the upstream or downstream cuff, depending upon the application.

The illustration above is shown clamped upstream.

FLOW

CheckMate® Installation Procedure

CHECKMATE® INSTALLATION

Figure 1 – Clamps shown installed on the same side of valve

CAUTION: Do not try to bend, collapse or fold the valve in order to facilitate the installation as this will cause permanent damage and will not allow the valve to return to a fully round shape.

Cuff

Body

Saddle

Extraction Hole Extraction Hole

Wire Reinforcement

CheckMate® Rubber Adhesive Strip Build Up Procedure

5. Rubber Adhesive Strip Build up

When valve O.D. is smaller than the pipe I.D., one-sided rubber adhesive strip is used to build up the O.D. of both CheckMate® cuffs to the actual pipe I.D.

NOTICE: Clean and dry the exterior of the valve prior to beginning rubber adhesive strip build up procedure.

STEP A: Place the valve on a solid, flat surface with the clamped end hanging slightly over the edge of the surface.

STEP B: Slowly rotate the valve while firmly pressing the rubber adhesive strip onto itself in concentric layers until valve O.D. is equal to or a fraction smaller than pipe I.D.

STEP C: Repeat steps A and B on the opposite side of the valve to ensure uniformity of the CheckMate’s® O.D. is consistent and matches the pipe I.D.

STEP E: Check O.D. of the valve to ensure it fits snugly into the I.D. of pipe. If loose, add another layer(s) of the rubber adhesive strip.

STEP D: Lubricate the valve and rubber adhesive strip surface. Slide valve into pipe. Ensure the area marked TOP is in the 12:00 position.

STEP F: Once in place, tighten the clamp to secure it against the pipe and compress the rubber ahesive strip.

Upstream Clamp

Upstream Flanged

Upstream Flanged Thimble Insert

Flow

Flow

Flow

Downstream Clamp

Downstream Flanged

Downstream Flanged Thimble Insert

Flow

Flow

Flow

6. Preparation

The CheckMate® Valve uses expanding clamp(s) to exert pressure outwards on the walls of the valve to wedge it in place within the pipe. The walls of the pipe should be clean and free of debris prior to installation.

The valve should be inserted fully into the pipe so that no part of the cuff or bill extends outside the pipe. Ensure that the valve is not slanted at an angle with the bill pointing upwards or downwards. The valve centerline should be parallel to the pipe centerline.

Tideflex® Technologies recommends pinning the CheckMate® Valve on all installations. See below.

Four pre-drilled holes are provided in each expansion clamp. At least one clamp should be pinned. On exposed pipe, holes can be drilled through the valve and pipe, and a bolt run through secured with a nut. For buried pipe, silicon or similar sealant should be used to seal bolts.

7. Lubrication

The outside of the valve can be lubricated with a water-based lubricant prior to inserting the valve into the pipe. If the taping procedure has been used, the surface of the tape can be lubricate to aid insertion.

8. Plumb Lines and Arrows

The CheckMate® Valve arrives with a “top” arrow, “flow” arrow and plumb lines, marked in white, at the 12:00 and 6:00 position of the valve. Utilize this marking to orient the valve in the pipe, as well as to ensure the valve is oriented correctly in pipe section.

9. Valve Orientation

The CheckMate® Valve must be installed in a horizontal pipe. Valves 4"

– 18" (nominal) are supplied with a single clamp. The clamp turnbuckle should be oriented at top dead center as delinated by the plumb line.

Valves 20” – 60” (nominal) are supplied with two clamps. The turnbuckles should be oriented 45° from the top center plumb line.

The 72” is supplied with three clamps. The turnbuckle for one clamp to be at top center. The other clamps to be 45° to each side of top center.

CheckMate® Installation Procedure

CAUTION: If you expand the clamp excessively at this step it will hinder or prevent the CheckMate® valve being fully inserted into the pipe.

CheckMate® Clamping Diagrams

CAUTION: Do not use petroleum-based lubricants on this product or on the vulcanized rubber tape.

Flow

10. Insertion Into Pipe

Clamp to support the shape of the cuff should be hand tight and should be extended outward, but only tight enough to loosely keep the shape of the cuff during installation.

Pallet Push method for installing CheckMate® Valve

11. Pallet Push for Larger CheckMate® Valves

Larger CheckMate® valves can be pushed into the pipe utilizing the shipping pallet. The pallet should be placed perpendicular to the valve being inserted into the pipe. Then, with assistance from an excavator, push with consistent even force against the shipping pallet to insert the CheckMate® valve into the pipe.

See the image to the right for the suggested positioning and usage of the excavator’s shovel assistance for larger-sized CheckMate® valves.

Clamps must be installed to prevent damage to cuff.

12. Corrugated Pipe and Smooth Wall (PVC, HDPE) Pipe Installation

For installation on corrugated pipe, it is recommended that the corruga-tions be filled with hydraulic cement (or similar material) that will provide a smooth I.D.

For smooth wall pipe, it is recommended that the valve be pinned.

NOMINAL

PIPE SIZE I.D.

Inches Millimeters

OVERALL

LENGTH*

Inches Millimeters

NUMBER

OF

CLAMPS

CUFF

DEPTH

Inches Millimeters

BACK PRESSURE

RATING**

Feet Meters

Downstream Flanged

Flow

Upstream Flanged

Flow

Downstream Flanged Thimble Insert or Extension

Flow

Upstream Flanged Thimble Insert or Extension

Flow

Cuff Depth

Flow

Length Clamp

Cuff Depth

Flow

Length Clamp

Upstream Clamp

WEIGHT***

lbs Kg

Lo w

Pr es su re

Downstream Clamp

St an da rd

P re ss ur e

3 75 5.1 130 1 1.5 38 10 0.7 0.3 4 100 7.9 201 1 1.5 38 10

3.0

1.5 0.7

DIMENSIONS

4 100 7.9 201 1 1.5 38 85 26.0 3 1.5 5 125 9.5 241 1 1.5 38 83 25.3 4 2 6 150 11.0 279 1 2.0 51 83 25.3 9 4 7 175 12.8 325 1 2.0 51 79 24.1 11 5

8 200 15.2 386 1 2.0 51 79 24.1 13 6 9 225 15.4 391 1 2.0 51 75 22.9 17 8 10 250 16.1 409 1 2.0 51 71 21.6 20 10 12 300 19.8 503 1 2.0 51 68 20.1 37 17 14 350 25.8 655 1 4.0 102 64 20.0 110 50 15 381 25.8 655 1 4.0 102 62 18.9 120 55 16 400 28.6 726 1 4.0 102 60 18.3 133 52 18 450 31.0 787 1 4.0 102 56 17.1 143 65 20 500 42.1 1069 2 8.0 203 53 16.2 223 102 24 600 47.5 1207 2 8.0 203 45 13.7 304 137 26 650 50.0 1270 2 8.0 203 42 12.8 370 168 28 700 52.0 1321 2 8.0 203 40 12.2 434 197 30 750 54.9 1395 2 8.0 203 38 11.6 500 227 36 900 62.3 1582 2 8.0 203 30 9.1 828 376 42 1050 70.6 1793 2 8.0 203 28 8.5 1423 646 48 1200 79.0 2007 2 8.0 203 26 7.9 1801 817 54 1350 86.4 2195 2 8.0 203 20 6.1 2700 1225 60 1500 96.8 2459 2 9.0 229 18 5.5 3315 1504 72 1800 119.0 3023 3 12.0 305 15 4.6 6100 2767

3.0

*Shorter lengths available.

Flange shape and bolt pattern can be customized.

Flangeless thimble inserts are available.

CheckMate® can be made for any pipe I.D.

Built to fit in sizes from 3-72” (75-1800mm).

**Back pressure measured from pipe invert.

Higher back pressure ratings available. Consult factory.

***Weights are approximate and do not include crating.

13. Flanged Valve Bolt Torques

The valve end with the rubber flange shall be installed using the backup rings provided. The sleeve split should be installed facing downstream, with the split in the vertical position.

The installation bolt torque on the end flange bolts are listed in the table below.

RECOMMENDED MINIMUM BOLT TORQUE

Torque values are suggested minimum values.

Torque all flange bolts in a star pattern, first to 50% of tabulated values, then retorque to 100% of tabulated values. If greater torque is required, continue retorquing in increments of 50% of tabulated values. Use of a high quality anti–seize compound on all bolt threads is recommended.

Variables such as the surface finish on bolt threads, type of anti–seize compound used, and surface finish of the mating flanges all have an effect on the minimum torque required to obtain a leak–tight flange seal.

During installation you may need to retorque the flange bolts several times for a proper seal. This will overcome any leaks due to the cold flow of the rubber sleeve flange.

Always use a “star” pattern when bolting a check valve.

7 8

MAINTENANCE

Inspection Valves should occasionally be inspected for damage, wear, and buildup of debris. The frequency of the inspections should be determined by the sever-ity of the service and the environment in which it operates.

The clamps should be checked for proper tension, and be sure that the inside of the valve is free of debris. Soft marine growth is normal on valves in submerged applications. Because hard marine growth such as barnacles will not bond well to the CheckMate®, they can be easily removed. Also insert pins to ensure they are tight.

STORAGE

If your CheckMate®, is to be stored for a period of time prior to installation, the following storage guidelines will help to preserve the valve and assure a trouble-free installation:

1. Store in a clean, cool, dry location. Avoid exposure to light, electric mo-tors, dirt, or chemicals.

prevent possible damage.

4. Store this manual with the valve, so that it is readily available at time of installation.

TROUBLESHOOTING GUIDE

Sleeve Inverted or Distorted

1. Excessive back pressure, water surge, or water hammer.

Leaking Around Perimeter of Valve

been fully sealed Backflow

1. Debris lodged inside bill.

1. It is important that the CheckMate® is installed level within the pipe. The CheckMate® may "gap open" if installed improperly.

2. The sealing area of the CheckMate® must have room to expand out-wards, while bottom of the sealing area rises. The area around the sealing area must be kept free of debris to allow the bill to close in order for the valve to seal properly.

3. The CheckMate® effectively reduces the inside diameter of the pipe in which it is installed, creating a restriction. It may also create a "ledge" inside the pipe, causing standing water.

4. Back pressure in excess of the back pressure rating may cause valve failure.

5. Should the conditions that the CheckMate® was designed for change, (line pressure, back pressure, chemical compatibility) the performance of the valve may suffer.

6. CheckMate® Valves must be installed in true round pipe which is con-centric across the entire length. Out of round pipe may cause the sealing area of the valve to distort and gap, which will cause the valve to leak.

CheckMate® Installation Notes

Red Valve • 750 Holiday Drive, Suite 400, Pittsburgh, PA 15220 • 412-279-0044 • support@redvalve.com • RedValve.com © 2024 Red Valve Company

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

Web site: RedValve.com E-Mail: support@redvalve.com

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 http://www.redvalve.com/ mailto:support@redvalve.com