FNW FIGURE 40A Single Sphere Flexible Connector Instruction Manual

FNW FIGURE 40A Single Sphere Flexible Connector

Product Information

The product is a flexible connector with a flanged end and a single sphere design. It is designed to absorb thermal and seismic movement, absorb hydraulic shock, provide vibration and noise dampening, make installation easier, and correct minor misalignment of piping and components.

Storage
When not in use, store the flexible connector flat in a dry location, away from humidity and extreme temperatures. Place the flanges face down and avoid stacking heavy items on top of the expansion joints.

Braid Limits
The product does not mention any specific limits for the braid. Further information may be available in the complete user manual.

Product Usage Instructions

Specifications
Before installation, ensure that the expansion joint meets the system’s required ratings for pressure, temperature, vacuum, elastic materials, and movements.

Alignment
Expansion joints are not meant to correct pipe misalignment. The pipe misalignment should be no more than 1/8 inch in any direction. Using an expansion joint to compensate for misalignments can reduce the rated movements and cause premature failure. Adjust fixation points if the pipe is misaligned, considering axial compression or elongation, transverse movement, and angular deflection. Refer to the provided diagram and chart for specific values.

Anchoring
The installation should include anchoring of the upstream and downstream pipes.

The mounting order should be

1. Upstream pipe : anchor,
2. Downstream pipe : anchor,
3. Rubber joint. Take care to install the rubber joint without any twists and ensure that it does not support heavy weight.

Pipe Support
Use the following installment scheme

1. Anchor,
2. With control rods,
3. Fixation points,
4. Guiding points.

This scheme helps provide proper support and stability to the flexible connector.

Mating Flanges
Ensure that the mating flanges are properly aligned and securely connected to the flexible connector.

Bolting Torque
Refer to Table 8 for the recommended torque values for tightening the bolts of the flexible connector. Follow the sequence chart while applying the torque values mentioned. Avoid overtightening, as it can cause metal-to-metal contact. Due to various factors like installation offsets, environmental conditions, flange surfaces, and operating pressures, the provided torque values are approximate.

INTRODUCTION

This instruction sheet includes installation, operation and maintenance procedures for flexible connectors.

APPLICATION
Flexible connectors are used to absorb thermal and seismic movement, absorb hydraulic shock, provide vibration and noise dampening, make installation easier and correct minor misalignment of piping and components.

STORAGE
Store the joint flat in a dry location, avoiding humidity and extreme temperatures. Place flanges face down and do not stack any heavy items on top of the expansion joints.

INSTALLATION

Specifications
Make sure that the expansion joint you are using meets the system’s required ratings for pressure, temperature, vacuum, elastic materials and movements.

Alignment
Expansion joints are not intended to correct pipe misalignment, which should be no more than 1/8” in any direction. Using an expansion joint to make up for piping misalignment errors will reduce the rated movements and cause premature failure. If the pipe is misaligned, adjust fixation points, keeping in mind axial compression or elongation, as well as transverse movement and angular deflection when trying to make up for misalignments. Please see diagram and chart below.

Size

| Maximum Axial Compression| Maximum Axial Elongation| Maximum Transverse Movement| Maximum Angular Deflection
---|---|---|---|---
2-1/2| 0.500″| 0.375″| 0.50″| 15°
3| 0.500″| 0.375″| 0.50″| 15°
4| 0.625″| 0.375″| 0.50″| 15°
5| 0.625″| 0.375″| 0.50″| 15°
6| 0.625″| 0.375″| 0.50″| 15°
8| 0.625″| 0.375″| 0.50″| 15°
10| 0.625″| 0.500″| 0.75″| 15°

Anchoring
The alignment of the piping system should be adjusted and secured with fixation points as close as possible on each side of the rubber joints at a distance less than three times the pipe’s nominal diameter. These fixation points must be installed when mounting a rubber joint with control rods or in the case of an elbow pipe. If there is considerable distance between two fixation points, guiding points can be installed to support and guide the pipe. Expansion joints should be installed on straight runs between anchors. Control rods should be used on all expansion joints to prevent excessive movements due to pressure thrusts or other circumstances.

Pipe Support
Do not carry any pipe weight on the expansion joint. The piping must be supported.

• When installing, take care that the rubber joint does not support compression or extension due to the weight of the upstream or downstream pipe.
• See note above for alignment that the joint isn’t compressed or extended in service.

Mounting order

1. Upstream pipe : anchor.
2. Downstream pipe : anchor.
3. Rubber joint.

When installing the rubber joint, take care that it is not twisted in any way.
Verify that the upstream and downstream pipe alignment do not deviate more than 1/8″ (3mm) and that the rubber joint does not support heavy weight.

Installment Scheme

1. Anchor
2. With control rods
3. Fixation points
4. Guiding points

Mating Flanges
Verify that the surfaces meeting the joint are perfectly clean, flat-faced type, and without cutting edges (pipe), thus avoiding damage to the joint surface. Insert the bolts on the arch side of the joint, thus avoiding direct contact with the rubber. The breech opening must match the flange-to-flange dimension of the expansion joint. Composite gaskets are required when attaching beaded end flange expansion joints to raised face flanges. Expansion joints are never to be installed next to butterfly or check valves.

Bolting Torque
Recommended torque values are in Table 8 for the flexible connector. Properly tighten the bolts per the sequence chart while following the torque values in Table 8. Do not overtighten as this can cause metal-to-metal contact. Due to installation offsets, environmental conditions, flange surfaces and operating pressures, the torque values are approximate.

Nominal Pipe Size Expansion Joint I.D. Inch/(mm)| Step 1 FT- LBS (Nm)| Rest| Step 2 FT-LBS (Nm)| Rest| Step 3 FT-LBS (Nm)
---|---|---|---|---|---
2.5 (65)| 18 (25)| 30 min.| 35 (50)| 60 min.| 50-60 (70-80)
3 (80)| 25 (35)| 30 min.| 45 (60)| 60 min.| 60-75 (80-100)
3.5 (90)| 25 (35)| 30 min.| 45 (60)| 60 min.| 60-75 (80-100)
4 (100)| 25 (35)| 30 min.| 45 (60)| 60 min.| 60-75 (80-100)
5 (125)| 25 (35)| 30 min.| 45 (60)| 60 min.| 60-75 (80-100)
6 (150)| 30 (40)| 30 min.| 50 (70)| 60 min.| 60-75 (80-100)
8 (200)| 30 (40)| 30 min.| 50 (70)| 60 min.| 60-75 (80-100)
10 (250)| 30 (40)| 30 min.| 50 (70)| 60 min.| 75-85 (100-115)

SEQUENCE CHART
Tighten opposing nuts/bolts gradually according to the following sequence

Do not paint or cover the joint with insulation.
Covering the expansion joint prevents the detection of flange leaks and can also cause premature failure to the elastomer. If insulation is necessary, bring it up to the pipe flanges and leave the expansion joint exposed.
When performing heat-producing work, such as welding or burning, that is carried out within close range, cover or dismount the rubber joint. The heat can cause damage to the elastomer, resulting in premature failure.

MAINTENANCE
Bolt tightness should be checked daily within the first month after services and checked periodically thereafter. Retighten if necessary.

WARRANTY

1. LIMITED WARRANTY : Subject to the limitations expressed herein, Seller warrants that products manufactured by Seller shall be free from defects in design, material, and workmanship under normal use for a period of one (1) year from installation but in no case shall the warranty period extend longer than eighteen months from the date of sale. This warranty is void for any damage caused by misuse, abuse, neglect, acts of God, or improper installation. For the purpose of this section, “Normal Use” means in strict accordance with the installation, operation, and maintenance manual. The warranty for all other products is provided by the original equipment manufacturer.
2. REMEDIES : Seller shall repair or replace, at its option, any non-conforming or otherwise defective product, upon receipt of notice from Buyer during the Manufacturer’s warranty period at no additional charge. SELLER HEREBY DISCLAIMS ALL OTHER EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS OR FITNESS FOR A PARTICULAR PURPOSE.
3. LIMITATION OF LIABILITY : UNDER NO CIRCUMSTANCES SHALL EITHER PARTY BE LIABLE TO THE OTHER FOR INCIDENTAL, PUNITIVE, SPECIAL OR CONSEQUENTIAL DAMAGES OF ANY KIND. BUYER HEREBY ACKNOWLEDGES AND AGREES THAT UNDER NO CIRCUMSTANCES, AND IN NO EVENT, SHALL SELLER’S LIABILITY, IF ANY, EXCEED THE NET SALES PRICE OF THE DEFECTIVE PRODUCT(S) PURCHASED DURING THE PREVIOUS CONTRACT YEAR.
4. LABOR ALLOWANCE: Seller makes NO ADDITIONAL ALLOWANCE FOR THE LABOR OR EXPENSE OF REPAIRING OR REPLACING DEFECTIVE PRODUCTS OR WORKMANSHIP OR DAMAGE RESULTING FROM THE SAME.
5. RECOMMENDATIONS BY SELLER : Seller may assist Buyer in selection decisions by providing information regarding products that it manufactures and those manufactured by others. However, Buyer acknowledges that Buyer ultimately chooses the product’s suitability for its particular use, as normally signified by the signature of Buyer’s technical representative. Any recommendations made by Seller concerning the use, design, application, or operation of the products shall not be construed as representations or warranties, expressed or implied. Failure by Seller to make recommendations or give advice to Buyer shall not impose any liability upon Seller.
6. EXCUSED PERFORMANCE: Seller will make a good faith effort to complete delivery of the products as indicated by Seller in writing, but Seller assumes no responsibility or liability and will accept no back-charge for loss or damage due to delay or inability to deliver, caused by acts of God, war, labor difficulties, accidents, inability to obtain materials, delays of carriers, contractors or suppliers or any other causes of any kind whatever beyond the control of Seller. Under no circumstances shall Seller be liable for any special, consequential, incidental, or indirect damages, losses, or expense (whether or not based on negligence) arising directly or indirectly from delays or failure to give notice of delay.

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