DUCKBILLCHECK VALVEHEDFLEX 1” - 96”

HEDFLEX DUCKBILL CHECK VALVESERIES 9800 & 9900

JANDSVALVE.COM

DESIGN FEATURESJ&S HedFlex Check Valves are constructed with superior high grade rubber and superior polyester reinforcement to improve performance, operation, and life expectancy. There are many grades of rubber that vary in chemical make-up. The elastomer’s chemical make-up “the recipe“ determines cost, characteristics, durometer (hardness and stiffness), and quality of the rubber parts used to construct HedFlex Check Valves.

The HedFlex product line must have the proper durometer, for memory, and strength to allow it to operate under specific flow conditions, also to be strong enough to withstand the weight of water and specified back pressure. The exterior of the HedFlex Check Valves are coated to prevent damage from the ultraviolet rays of the sun. HedFlex Check Valves are fire retardant and treated so sea life will not adhere, and to prevent other animals from eating it.

The HedFlex Check Valve reinforcing plies, are a key factor in the construction of HedFlex Check Valves. For example, a tire rated for 80,000 miles of service has a superior rubber compound and reinforcement than a tire rated for 40,000 miles of service.

HedFlex Check Valves use a much higher grade of rubber than the leading competitors. J&S uses a polyester fabric reinforcement compared to less expensive nylon. The polyester webbing offers added strength to the product and will not wick fluids. Nylon Fabric is not as strong as polyester and nylon will wick when exposed to liquids. This wicking action causes the rubber to delaminate, and in-turn, cause the valve to fail.

CHECK VALVEDIMENSIONS

*Dimensions are for clearance purposes only. Actual product dimensions may vary based upon specific application requirements.

1-Inches 2-PSI

1-Inches 2-Pounds (Approximately)

1-Inches 2-Pounds (Approximately)

1-Inches 2-Pounds (Approximately)

Dimensions can be revised to suit custom specifications. Consult factory for other sizes.

Dimensions can be revised to suit custom specifications. Consult factory for other sizes.

Dimensions can be revised to suit custom specifications. Consult factory for other sizes.

Dimensions can be revised to suit custom specifications. Consult factory for other sizes.

ID1 1/2 3/4 1 1-1/2 2 2-1/2 3 4 5 6 8 10 12 14 16 18

F/F1 2-1/2 3 3-1/4 4-1/2 5-3/4 7-1/2 9 12 13 15 17 18 24 26-1/2 28 31

C1 1 1 1 1 1-1/2 2 3 3 3 4 4 4 6 6 6 6

W1 1 1-1/2 2-1/8 2-5/8 3-7/8 4-5/8 5-1/2 7-3/8 8-3/4 10-1/2 13-3/4 17 19-5/8 24-3/4 26-1/2 29-3/4

Weight2 .25 .75 1.5 3.8 4.75 7.6 10.45 14.25 16.15 20 23.75 35.15 56 71.25 118 195

ID1 20 24 28 30 32 36 42 48 54 60 63 70 72 78 84 94

F/F1 32 41 44 46 52 58 61 70 74 80 88 95 97 100 102 105

C1 8 8 8 10 10 10 12 12 12 12 12 14 14 18 18 18

W1 31-1/2 43 46 49 51 55-1/4 66-1/4 74-1/2 78-1/4 85 92 100 105 107 111 150

Weight2 299 380 451 523 572 621 902 947 1016 1207 1245 1300 1356 1500 1750 2000

ID1 1 1-1/4 1-1/2 2 2-1/2 3 4 5 6 8 10 12 14 16 18 20 24

F/F1 4-1/2 5-1/2 6-1/2 8-1/2 9-1/2 11-1/4 11-3/4 15-3/4 19 21 23 25 29 33 38 41-1/2 49-1/2

H1 4-1/4 4-5/8 5 7-1/8 7-1/2 8-1/8 10-5/8 11-1/2 13-1/2 18 22-3/8 25 27-1/2 29 32-5/8 36-1/2 47

W1 5-3/4 6-1/4 6-1/2 8-1/2 9 10 11-3/4 11-3/4 15-1/4 17-1/2 19-3/8 21-1/2 24 25 28-1/4 29 37-1/2

Weight2 9 11 17 32 40 51 88 137 180 257 440 640 790 930 1285 1714 2110

ID1 1 1-1/2 2 2-1/2 3 4 5 6 8 10 12 14 16

F/F1 3 3-7/8 5-1/4 6-1/4 7-1/2 9 11 12 14 16 18 20 23

H1 7/8 7/8 7/8 7/8 1-1/8 1-1/8 1-1/8 1-3/8 1-3/8 1-3/8 1-3/8 1-3/8 1-3/8

W1 2-1/8 2-5/8 3-7/8 4-5/8 5-1/2 7-3/8 8-3/4 10-1/2 13-3/4 17 19-5/8 24-3/4 26-1/2

Weight2 2.5 4 5 8 11 15 17 21 25 37 59 75 124

ID1 18 20 24 28 30 32 36 42 48 54 60 63 72

F/F1 25 32 41 44 46 52 58 61 70 74 80 88 97

H1 1-3/8 1-7/8 1-7/8 1-7/8 1-7/8 1-7/8 1-7/8 2-3/8 2-3/8 2-3/8 2-3/8 2-3/8 2-3/8

W1 29-3/4 31-1/2 43 46 49 51 55-1/4 66-1/4 74-1/2 78-1/4 85 92 105

Weight2 205 315 400 475 551 602 654 950 997 1070 1271 1310 1480

Pipe Size 2 3 4 5 6 8 10 12 14 16 18 20 24

ID1 1-1/4 2-1/4 3 4 5 6-5/8 8-5/8 10 11-1/2 13-1/2 15-1/4 17 20-1/2

F/F1 6 7-1/2 13 14-1/2 16 18 20 21 22 24 27 30 33

H1 1/2 1/2 3/4 3/4 3/4 3/4 3/4 1 1 1 1 1-3/16 1-3/8

W1* 1-7/8 2-7/8 3-7/8 4-7/8 5-7/8 7-5/8 9-5/8 11-7/8 12-3/4 14-3/4 16-3/4 18-3/4 22-3/4

SLIP ON CHECK VALVE

FLANGE CHECK VALVE

FLANGE IN LINE CHECK VALVE

FLANGE X FLANGE CHECK VALVE

JANDSVALVE.COM

CAST IRON

HEDFLEX DUCKBILL CHECK VALVEFEATURES & BENEFITS

The Specified Back Pressure Forces the HedFlex Rubber Check Valve to Close Preventing Back Flow.

The J&S Valve - Duck Bill Rubber Check Valve, is a cost effective way to control back pressures from sewage treatment plants, outfalls and tidal operations. They are a fully passive backflow device requiring neither maintenance, outside sources of power or manual assistance to operate.

The J&S Valve - HedFlex Duckbill Rubber Check Valves, are offered as direct replacements for ineffective and maintenance ridden flap type check valves, which are commonly known to seize, rust and bind in unwanted positions. Unlike flap type valves, the Duckbill rubber check valves will handle large obstructions without jamming or having swing gates binding open.

Advantages of the J&S Valve HedFlex Duckbill Rubber Check Valve Model 9800/9900 Series Duckbill Rubber Check Valves:

• Backflow Prevention• Manufactured to Your Head Pressure Requirements• Simple Installation When Replacing Flap Valves• Zero Water Hammer Problems• Long Service Life• All Rubber Construction Resists Abrasive Slurries• NSF/ANSI Standard 61 Certified Materials• Very Quiet Operation• Negligible Maintenance and Energy Costs• Available in Sizes 1” to 96” (Available with special IDs to suit concrete pipe)

ElastomersAll of the J&S Valve - HedFlex Duckbill Check Valves are available in a various selection of elastomers and back pressure capabilities to suit most applications.The J&S Valve - HedFlex Duckbill Check Valves will not freeze or deform and function solely on inlet and back pressures, which will be present in most applicationseach valve is carefully constructed using the finest of engineered materials and built by the most experienced rubber technicians in the industry.

APPLICATIONS• Wastewater Treatment Plant• Sewer Systems• Potable Water Holding Tanks• Airport Runways• Parking Lots• Residential Areas• Commercial Centers• Storm Water Discharge• Flood Control Prevention• Effluent Diffusers• Marine Effluent Diffusers• Flap Valve Replacement• Aeration Systems• Blow-Off Connections• Lift Station Drain Valves• Salt Water Barriers• Tidal Walls• Detention Ponds

2323 1st Street Huffman, Texas 77336

T: 281.324.3990 | F: 281.324.6879

E: Sales@jandsvalve.com

JANDSVALVE.COM05-19-2020