Henderer Hydraulic Pressure Test Pumps

Cast Iron Construction

400, 500 & 750 POUNDS PER SQUARE INCH

The simple construction of these dependable pumps, for moderate pressures, requires a minimum of maintenance. They are designed for testing boilers, condensers, heat exchangers, pressure vessels, pipe lines, valves, sprinkler systems, radiant heat lines, laboratory work or wherever hydrostatic testing is required; also hydraulic power applications, and fluid transfer applications.

A gland nut permits easer adjustment of the packing. The lever of the single pumps can be operated from any direction by means of an adjustable swivel on the pump.

NUMBER	MAXIMUM PRESSURE	PISTON DIAMETER	SIZE OF VALVES	STROKE	NET WEIGHT	OVERALL HEIGHT
1 Single	750 psi.	1 in.	3/4 in.	4 in.	22 lbs.	13 in.
2 Single	400 psi.	1 1/2 in.	1 in.	4 in.	36 lbs.	13 in.
3 Single	400 psi.	1 3/4 in.	1 1/4 in.	6 in.	65 lbs.	26 in.
4 Single	400 psi.	2 in.	1 1/2 in.	6 in.	75 lbs.	28 in.

2000 & 3000 POUNDS PER SQUARE INCH BRONZE PUMP STAINLESS STEEL PISTON

These heaver duty pumps are for intermediate pressures. They are designed for testing boilers, condensers, heat exchangers, pressure vessels, pipe lines, valves, laboratory work or wherever hydrostatic testing is required; also hydraulic power applications.

Body and valves are hydraulic bronze to withstand the higher pressures and resist corrosion; piston is stainless steel. Teflon or other special packing available.

NUMBER	MAXIMUM PRESSURE	PISTON DIAMETER	SIZE OF VALVES	STROKE	NET WEIGHT	OVERALL HEIGHT
15	2000 psi	7/8 in.	3/4 in.	4 in.	29 lbs.	13 1/2 in.
30	3000 psi.	3/4 in.	1/2 in.	3 1/2 in.	37 lbs.	14 in.

GAUGES AND GAUGE CONNECTIONS

A gauge, with special connection, to be attached to the outside of the discharge valve of the single piston pumps can be provided at extra cost as listed below. The double pumps are already tapped for a gauge in the connection between the two discharge valves and do not require a separate gauge connection.

PUMP CHARACTERISTICS

MODEL	MAXIMUM CAPACITY	SIZE OF VALVES	PLUNGER DIAMETER	STROKE
#1 Single	750 psi	3/4 in.	1 in.	4 in.
#2 Single	500 psi.	1 in.	1 1/2 in.	4 in.
#3 Single	500 psi	1 1/4 in.	1 3/4 in.	6 in.
#4 Single	500 psi.	1 1/2 in.	2 in.	6 in.
#15	2000 psi	7/8 in.	4 in.	6 in.
#30	3000 psi.	1/2 in.	3/4 in.	3 1/2 in.

 

PUMP INSTRUCTION MANUAL

INSTALLATION

Location of valves: Suction or inlet valve is on left, discharge or outlet valve is on right of pump with handle toward operator except for double cylinder pump valves which are marked. Gauge and connection (optional  equipment) can be screwed into the outlet valve or placed anywhere desirable in outlet line.

Connection to discharge side is made with pipe or hose suitable for the maximum working pressure. Procedures used by the pipe fitting trade are all that is necessary. Suction or inlet side can use standard pipe or low pressure garden hose.

OPERATING INSTRUCTIONS

Filling of Test Unit: Water under city water pressure may be run through pump with handle raised or through by-pass line to fill test unit but generally pump should be depended upon only to raise water to test pressure in as much as it is of a low displacement, high pressure design.

Establishing Test Pressure: Pump is then operated until desired pressure is established. Look for fluid dripping at threaded connections. A loss of a few drops can mean a significant drop of pressure, particularly in higher ranges.

PURGING OF AIR

The pump, discharge line, and test unit must be purged of all air to insure proper operation. Virtually any operating difficulties will be resolved to air trapped in the system.

Water is virtually incompressible and no trouble will be experienced in establishing pressure if all air is removed.

The test unit must have some provision for expelling air at the top, where the air will gather, by some means such as a valve or petcock. This should be “cracked” until a steady clear flow of water leaks out under pressure.

Outlet or Discharge Line: Care should be taken to avoid any high points in the line between the pump and test unit in which air can be trapped.

Pump. If plunger bounces when released, air is trapped under end and can be released by loosing gland nut until sufficient fluid leaks out to purge air with it. Under unusual circumstances it may be necessary to remove the plunger and replace after filling cylinder with fluid nearly to top. Likewise, air trapped under valve cap can be released by partially loosening under moderate pressure.

Inlet or Suction Line: A steady continuous supply of water is required as free of entrapped air as possible.

MAINTENANCE

Tighten gland nut occasionally to compensate for wear as indicated by leakage of fluid at top.

All pumps are rated for a maximum pressure rating stated as per pump model purchased. Both the pump and check valves are rated for and made to be used above the stated maximum pressure stated. The pump body on the pumps also has the maximum operating pressure imprinted on the casting itself. All persons should take maximum care not to operate specific model pumps above their rated maximum pressure, as injury or damage may occur in doing so.