Standard 1" B-7000

Inlet - 1" NPT in Casting
Outlet - 3/4" Hose Thread Adapter
Heavy Cast Iron Head
Heavy cast brass or no-lead brass valve body with two flow ways patented double cylinder valve body

B-7000 Series & BNL-7000 Series Economy and Quality, No-Lead Available U.S. Patent No. 8,408,238

Features & Benefits

The B-7000 Series Yard Hydrant gives year-round water service that drains below the frost line once shut off.

1) Heavy Cast Iron Head simple high flow design.

Benefit - Stands up to abuse, design has higher flow.

2) One Lifting Strap simple ribbed design

Benefit - Ribbed design greatly increases strength and centered single strap eliminates side pull.

3) Heavy Cast Iron Handle simple oversized design.

Benefit - Very easy to operate, extra room for big hands.

4) No Adjustment Needed patented design eliminates need for adjustment (CAUTION: Do not move down clamp on pipe - will damage the plunger).

Benefit - Design of plunger and valve body automatically adjusts itself - no field guess work.

5) No Packing Gland Required simple, fool proof design.

Benefit - No packing or packing gland to service - makes on site field work very simple.

6) Easy Plunger Seal Replacement only loosen one bolt.

Benefit - O-Ring seals very easy to replace when lift out plunger.

7) 1" Galvanized Riser Pipe with PVC Inner Pipe

Benefit - SCH 80 PVC inner pipe strong - non-corrosive.

8) 1" Valve Inlet Size

Benefit - Easy installation and better flow rate.

9) Double Bypass Valve Body provides a large volume of water.

Benefit - High water flow with economical patented design.

10) Hydrant Locking Eye

Benefit - Protects from waste of water.

11) Lever Strap Bolt

Benefit - Holds hydrant in adjustment, simplest design.

12) One Piece Plunger

Benefit - Very easy to replace O-Ring seals, simplest repair.

13) Hose Thread Fitting

Benefit - Standard hose fitting, readily available.

14) Lever Strap Pivot Control

Benefit - Allows adjustable flow rate with handle only.

NOTE: This model of hydrant requires more time to drain itself.  If you turn the hydrant back on when it is still draining, water will come out outlet AND drain hole.  Hydrant is working normally.

B-7000 Yard Hydrant Installation Instructions

Almost NO Reason to Ever Dig up a Hydrant to Fix a Leak
Under no circumstances should Merrill Manufacturing Yard Hydrants drain back into well or drinking water supplies!
*Merrill Manufacturing disclaims all liability of any kind and voids the hydrant warranty for installations of this product where it can or could drain back into a drinking water supply.

Step 1: First be sure water line on which hydrant is to be installed has been thoroughly flushed to wash out foreign particles.  Merrill Manufacturing will not warrant or accept any responsibility if the water line is not flushed out prior to attachment of hydrant.

Step 2: Be sure the hydrant is installed with provision for drainage below the frost line.

• If hydrant is installed in a pit, the pit must have an open bottom or some form of drainage.
• If hydrant is buried in the ground, a few tile can be laid in gravel or coarse material to form a field system for the drain.
• If hydrant is buried in the ground and no tile are used, be sure to put a quantity of gravel, crushed rock or some coarse material, not sand, around the drain of the hydrant.  This will permit faster and better drainage.

Step 3: Important - If hydrant is buried in the ground, it is a good idea to put a brick or large stone under the hydrant, because when the hydrant drains and this subsoil becomes wet, it will allow the hydrant to settle and thus put a strain on the pipe to which it is connected.  A brick or stone would carry this weight.

Step 4: To connect the hydrant to the water line, just turn it onto the male thread connection for which it is intended.  Merrill Manufacturing™ has hydrant ells and tee fittings available for connection to flexible poly pipe.

• CAUTION: When the hydrant is tightened, be careful that it is not tightened so tightly that the hydrant head or valve body will be screwed further onto the pipe and thus change the adjustment of the hydrant.  If this should happen, refer to the adjustment section for the proper adjustment.

Step 5: Important - Before backfilling the trench, turn on the water.  Then turn on the hydrant by raising the handle to let the water flow.  If the hydrant is not working properly, refer to the adjustments below.  Merrill Manufacturing™ will not accept any responsibility for digging up the hydrant if the installer fails to flush out the water line before attaching hydrant to water line and to check the hydrant for proper operation before backfilling the trench.

WARNING: If the ground freezes at or below the bottom of this hydrant, your warranty is void and damage due to improper installation or act of nature is not covered by manufacturer.

CAUTION: Use wrench on valve body and fitting only!  Do not use wrench on this stand pipe!  Additional tightening or loosening will change adjustment of hydrant and could restrict water flow or may make the hydrant inoperative.

CAUTION: If the hose is attached to the nozzle of the hydrant when hydrant is shut off, back siphoning can occur if end of hose is left in container of liquid.  The end of the hose must be left open to the air so hydrant can drain back. 

Yard Hydrant Adjustment Instructions

The correct adjustment of this hydrant can be checked by raising the lever.  Water should not run through the hydrant until the lever passes the half way point or horizontal position.  When water is flowing through the hydrant it should shut off when the lever comes down to the horizontal point.  The last half travel of the lever in closing the hydrant opens the drain hole.  Also in turning the hydrant on, the first half travel of the lever puts the cup seals in position to positively close the drain before the water is turned on.  This advanced patented feature is found only in the Merrill Manufacturing Anyflow Hydrant.

Adjusting the plunger in the lower valve body

• To lower the plunger assembly into the valve body, take the G-15 bolt out of the head casting and remove the handle and G-20 draw straps (Note: draw straps are bent inward which applies pressure on the handle when opening the hydrant).  With two wrenches loosen the (2) 9/16" nuts on each side of the G-25 pivot connector.  To lower the plunger, turn the top nut upward, only one thread, then tighten the lower nut upward toward the G-25 pivot connector (or raise the G-25), then tighten the top nut.

• To determine if the water is not draining out of the stand pipe, turn the hydrant on and let the water flow.  Then push down the handle to close the hydrant with a cup of water covering the nozzle.  If the water in the cup siphons back through the hydrant, the plunger is in the correct position.  If the water does not siphon out of the cup, then adjust the plunger in the same way as stated above.  Then check to see if the water siphons out of the cup after adjustment.

B-7000 Yard Hydrant Adjustment Instructions

Instructions to Remove Inside Assembly and Replace the Plunger
Step 1: Remove lever pivot bolt

Step 2: Lift and remove head with inside assembly from stand pipe

Step 3: To remove plunger - Measure 3/4" above the PVC coupling that connects plunger to riser pipe and cut, using a hacksaw or tube cutter.

Step 4: Install the new plunger assembly using PVC cleaner & PVC cement on both the riser pipe and new plunger coupling.

Step 5: Install inside assembly into standpipe per instructions of #1 and #2 in reverse

Step 6: To insure no damage to the new plunger - turn head assembly with pipe and plunger into valve body do not jam plunger down into place.

Note: New replacement plunger has 2 PVC couplings to keep overall length the same as the original.