The American−Darling® 5-1/4” B−84−B−5 fire hydrant, by AMERICAN Flow Control, is also available with the optional AMERICAN Earthquake (EQ) Joint System® base – the only one of its kind.
The EQ base allows the inlet pipe to deflect at an angle and move in and out of the hydrant inlet. This unique inlet can compensate for dynamic underground conditions caused by an earthquake.
To provide additional deflection, this revolutionary hydrant lead works in conjunction with AMERICAN Flow Control’s Series 2500 RW Gate Valve with Flex-Ring® ends and is connected using AMERICAN ductile iron pipe. The hydrant also has an all-bronze drain ring which is securely retained to the hydrant inlet base. Collectively the features of this proprietary system help to maintain water pressure, conserve water and help provide fire protection in the event of an earthquake.
The 5-1/4”American-Darling B-84-B-5 Fire Hydrant with Earthquake Base offers the following features:
The AMERICAN EQ Joint® base allows up to 3-degrees of lateral deflection.
The EQ Joint also allows for +/- 2.4-inches of longitudinal expansion or contraction.
The AMERICAN Flow Control Series 2500 RW Gate Valve with Flex-Ring ends allows for an additional 5-degrees of deflection at each joint.
The AMERICAN EQ Joint hydrant lead is designed to withstand more than 100,000 lbs. of pull-out thrust.
The American-Darling B84B Fire Hydrant is provided with a uniquely retained drain ring which helps to prevent the water loss should the upper barrel be separated from the fire hydrant during an earthquake.
The AMERICAN EQ Joint has been validated by independent testing conducted at Cornell University to meet the requirements of ISO 16134 as relates to expansion/contraction performance, slip-out resistance and joint deflection angle.
The 5-1/4” American-Darling B-84-B-5 also has these standard features:
Fully complies with ANSI/AWWA C502 and is rated at 250 psig.
Certified to NSF/ANSI/CAN 61 and NSF/ANSI 372.
Complies with ANSI/AWWA C550.
Upper barrel is furnished with an e-coated primer and polyurethane top-coat.
Positive compression drain, which closes the hydrant drain system within 3-turns.
Collar-style mechanically retained nozzle.
Square hydrant rod which allows for use of a short, light-weight disassembly wrench.
Fire hydrants shall meet or exceed ANSI/AWWA C502, latest revision. Rated working pressure shall be 250 psig, test pressure shall be 500 psig and hydrants shall include the following specific design criteria:
The main valve closure shall be of the compression type.
Traffic features to be designed for easy 360-degree rotation of nozzle section during field installation.
The main valve opening shall not be less than 5-1/4 in. and be designed so that removal can be accomplished without excavating. The hydrant valve shall be constructed of EPDM rubber and have a vertical taper of 20-degrees, or less.
The hydrant drain ring shall be securely bolted to the hydrant base. The bronze seat shall be threaded into a bronze drain ring. The draining system of the hydrant shall be bronze and positively activated by a square operating rod. Hydrant drains shall close completely after no more than three turns of the operating nut. There shall be a minimum of two internal ports and four outlets to the exterior of the hydrant. Drain shutoff to be by a spring actuated positive compression closure. Sliding drains are not permitted.
Hydrant barrels shall have one (1) pumper nozzle and two (2) hose nozzles. The barrel shall be made of ductile iron and nozzles shall be retained by collars. Threaded-in nozzels and nozzles using set screws are not allowed. Hydrant upper barrel shall be factory coated with an electrodeposition (E-coat) epoxy primer and catalyzed two-part polyurethane top coating.
Base shall be coated with fusion-bonded epoxy. All bolting below grade shall be Type 304 stainless steel.
Friction loss not to exceed 3.0 psig at 100 GPM through 4 1/2” pumper nozzle.
The B-84-B-5 hydrant is to be supplied with AMERICAN Earthquake Joint System® base. The base shall be a single casting and shall be installed integral to the fire hydrant. It shall be coated with fusion-bonded epoxy coating. The AMERICAN EQ Joint® base shall allow for a minimum of: 3-degrees of joint deflection, +/- 2.4-inches of longitudinal expansion or contraction and 100,000 lbs. of thrust restraint.
The fire hydrant shall be incorporated in a hydrant lead which includes an AMERICAN Flow Series 2500 resilient wedge gate valve with Flex-Ring® ends for isolation. Each end of the gate valve shall be capable of 5-degrees of deflection.
Fire hydrant lead shall also include an appropriately sized thrust block as suggested by the Ductile Iron Pipe Research Association (DIPRA). Thrust block to be furnished by the installation contractor.
Fire hydrants shall be 5-¼” American-Darling B-84-B-5 with an EQ Joint base, by AMERICAN Flow Control, no equal.
