FJZJP Series Roots-Water Jet Vacuum Unit

The FJZJP series Roots–water jet vacuum unit combines a Roots (mechanical booster) pump as the main/intermediate stage with a water jet pump as the backing pump. Flow-path parts use anti-corrosion coating, and an all-plastic horizontal water jet design enables handling of corrosive gases. Ultimate vacuum: 150 Pa (single-stage), 25 Pa (two-stage), and below 5 Pa (three-stage).

GET A QUOTE

Download

View all downloads

Description

Overview

The FJZJP series Roots-water jet vacuum unit consists of a Roots pump (mechanical booster pump)—serving as the main and intermediate pump—and a water jet pump acting as the backing pump. The flow-path components utilize a unique anti-corrosion coating technology to ensure superior corrosion resistance.
By employing an all-plastic horizontal water jet vacuum unit as the backing pump, the system is capable of handling corrosive gases. The ultimate vacuum levels achieved are 150 Pa for a single-stage Roots configuration, 25 Pa for a two-stage setup, and within 5 Pa for a three-stage setup.

Performance Specifications Table

Product Model	Pumping speed (L/s)	Pump Model									Inlet diameter (mm)
Product Model	Pumping speed (L/s)	Ultimate pressure (≤Pa)	Main pump	Power (kW)	Rotational speed (r/min)	Intermediate pump	Rotational speed (r/min)	Fore-vacuum pump	Power(kw)	Power(r/min)	Inlet diameter (mm)
FJZJP-70-180	70	150	ZJC-70	2.2	2900			JW-RPP-54-180	7.5	2900	2900
FJZJP-150-280	150	150	ZJC-150	3	2900			JW-RPP-65-280	11	2900	2900
FJZJP-150-360	150	150	ZJC-150	3	2900			JW-RPP-80-360	11-15	2900	2900
FJZJP-150-500	150	150	ZJC-150	3	2900			JW-RPP-80-500	15	2900	2900
FJZJP-300-500	300	150	ZJP-300	4	2900			JW-RPP-80-500	15	2900	2900
FJZJP-70-30-180	70	25	ZJC-70	2.2	2900	ZJC-30	1450	JW-RPP-54-180	7.5	2900	2900
FJZJP-150-70-280	150	25	ZJC-150	3	2900	ZJC-70	1450	JW-RPP-65-280	11	2900	2900
FJZJP-150-70-360	150	25	ZJC-150	3	2900	ZJC-70	1450	JW-RPP-80-360	11-15	2900	2900
FJZJP-300-150-500	300	25	ZJP-300	4	2900	ZJC-150	2900	JW-RPP-80-500	15	2900	2900

Notes: ① The performance figures in the table are based on a gas temperature of 20°C, an atmospheric pressure of 1013.25 hPa (equivalent to 760 mmHg), a relative gas humidity of 70%, and a circulating water supply temperature of 15°C.
② Pumping speed tolerance: ±10%.
③ The vacuum values in the table represent the pressure level below standard atmospheric pressure. (1 mmHg = 1 Torr = 133.3 Pa; 0.1 MPa = 750 mmHg)