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INSTALLATION / OPERATION / MAINTENANCE

Rubber-Flex Duckbill Check Valves

Model RF-DBF

Model RF-DBI-IN

Model RF-DBI-LH

Model RF-DBJ

Model RF-DBI

Model RF-DBO

Содержание RF-DBF

Страница 1: ...INSTALLATION OPERATION MAINTENANCE Rubber Flex Duckbill Check Valves Model RF DBF Model RF DBI IN Model RF DBI LH Model RF DBJ Model RF DBI Model RF DBO...

Страница 2: ...ing Surface 5 3 4 Safety Area 5 4 0 Installation 6 4 1 Rubber Flex Check Valve Installation 6 4 1 1 6 4 1 2 7 4 1 3 7 4 1 4 8 4 1 5 9 4 1 6 10 4 1 7 Flange Bolt Torqueing Model RF DBF RF DBI RF DBJ Fl...

Страница 3: ...Valve This type of rubber check valve is designed to slip directly inside of an existing pipe and is supplied with a stainless steel expandable clamp to secure in place This style of rubber check val...

Страница 4: ...end depending on required installation orientation This type of rubber check valve is designed with a full metal enclosure Model RF DBJ Shroud which allows easy installation in existing piping systems...

Страница 5: ...setting with a relatively dry and cool location Store the check valve in a vertical position on a pallet or wooden platform similar to as shown in Figure 8 below Care should be taken when handling the...

Страница 6: ...split in the retaining ring Figure 10 Model RF DBF Installation Step 2 4 1 1 3 Step 3 Flange Bolting Insert the flange bolting and tighten the flange bolting hardware to a snug tight fit before torque...

Страница 7: ...ueing Proceed to step 4 1 7 for proper bolt torqueing and a sample torqueing pattern Figure 14 Model RF DBI Installation Step 3 4 1 3 Model RF DBO Rubber Flex Slip On Duckbill Check Valve Installation...

Страница 8: ...g on size and application Figure 16 Model RF DBO Installation Step 2 4 1 3 3 Step 3 Tighten Clamps Tighten the external clamp until the rubber is compressed by the external clamp and a tight fit is ac...

Страница 9: ...that the valve does not move care should be taken to ensure proper sealing Figure 20 Model RF DBI IN Installation Step 3 4 1 5 Model RF DBJ Rubber Flex Jacket Style Duckbill Check Valve Installation...

Страница 10: ...of check valve installation relies on external pressure of the internal expandable clamp to ensure that the valve does not move care should be taken to ensure proper sealing 4 1 6 2 Flanged Model RF...

Страница 11: ...ndix A for the proper ranges of torque values as well as further examples of the proper patterns used for torqueing the flange bolting Note Never tighten bolts on a flanged rubber check valve to the p...

Страница 12: ...other means of ensuring that this bolt pin will not fall out or be removed from to the internal expandable clamp Figure 32 Model RF DBI LH Anchor Bolt Pin Installation 5 0 Operation The Rubber Flex Du...

Страница 13: ...s 42 thru 50 80 300 ft lbs 52 thru 60 100 400 ft lbs 66 thru 72 200 500 ft lbs 78 thru 90 300 600 ft lbs 96 thru 108 400 700 ft lbs 120 500 800 ft lbs 7 2 Sample Torqueing Patterns Figure 33 Sample To...

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