Penberthy

Penberthy Type Ejectors

This standard type of ejector is suitable for many duties, such as filling and emptying tanks, raising and transferring liquids, and priming centrifugal pumps. It will elevate liquids 1ft per each 1 ¼ lbs. to 1 ½ lbs. of steam and operates at optimum efficiency with a Steam Pressure below 100 lbs. psi.
When ordering Ejectors, specify the size number. If ordering by size, specify suction and delivery sizes, not steam connections.
These Ejectors are supplied in Gunmetal only and are without socket ends.

Size No.	1	2	3	4	5	6
Pipe Connections/Steam	3/8	½	¾	1	1	1 ¼
Suction/Delivery	½	¾	1	1 ¼	1 ½	2
Capacity Per Hr. Galls. 3’ Lift 40-65 lbs Steam	190	400	690	1080	1560	2800
20-40 lbs/65-100 lbs	190	380	560	1040	1480	2400
40-65 lbs 50’ Elevation	95	200	335	520	780	1400
40-65 lbs 25’ Elevation	146	300	500	760	1160	2080
Vertical Lift 40-75 lbs steam/ft.	23	25	25	25	25	25
25-40 lbs/75/100 lbs	20	22	22	22	22	22

Steam Operated ejectors are suitable for a wide range of liquid transfer operations, including the transfer of liquids with solids in suspension, also for liquid heating, circulating, agitating and mixing of fluids in various processing operations.
The ejector is suitable for lifts up to 20 feet, but is recommended for lifts of 10 feet or less and will handle water up to 160°F. with gravity flow to suction and discharge head of less than 6 feet.
The table below gives capabilities of all sizes of ejectors when evacuating closed vessels to a given final vacuum. Capabilities show are at the most efficient operating pressures for the ejectors.
If pressure exceeds 60 psi, supply valve should be throttled to suit.
Values given are based on the evacuation of air or non-condensable gasses from closed systems and give the size of system in cubic feet which can be evacuated to a given vacuum in one minute.

Size No.	Operating Steam Pressure	Final Vacuum in inches of Mercury	Final Vacuum in inches of Mercury	Final Vacuum in inches of Mercury	Final Vacuum in inches of Mercury
		5	10	15	20
1	40 psi.	29	9	4	2
2	40 psi.	50	17	7	4
3	40 psi.	125	34	17	8
4	40 psi.	190	60	25	11
5	40 psi.	250	89	42	21
6	40 psi.	450	160	76	38

222 Erith Road, Bexleyheath,
Kent DA7 6HP