JZJ2B(S)W series Roots-liquid ring closed-loop vacuum unit

I. Applications

The JZJ2B(S)W series Roots-liquid ring closed-loop vacuum unit utilizes a ZJ
Roots pump as the main pump and a 2BV/2BE/2SK liquid ring vacuum pump or a
Roots-liquid ring vacuum unit as the backing pump. It can be used not only to
extract general gases but also gases containing moisture and small amounts of
dust. Compared to conventional mechanical vacuum pumps, it is resistant to oil
contamination, moisture, and fine dust. It is an ideal vacuum extraction system
for drying, dehydration, and vacuum degassing in industries such as textiles,
food, chemicals, and pharmaceuticals.

II. Features

1. The JZJ2B(S)W series Roots liquid ring vacuum units utilize the highly
efficient and energy-efficient 2BV liquid ring vacuum pump as their backing
pump. Consequently, the JZJ2B series Roots liquid ring vacuum units offer
advantages over the JZJ2SW series Roots liquid ring vacuum units, including
higher efficiency, compact structure, zero leakage (the 2BV series utilizes a
standard mechanical seal design, unlike the 2SK series' packing seal), corrosion
resistance (the 2BV series utilizes a stainless steel impeller), and a higher
level of protection.

2. The backing pump for Roots liquid ring vacuum units typically uses water
as the working fluid, but can also operate with organic solvents (such as
methanol, ethanol, xylene, and acetone) or other liquids. Using the backing pump
as a closed-loop system significantly reduces environmental pollution and
significantly improves organic solvent recovery. The ultimate vacuum level is
determined by the saturated vapor pressure of the working fluid.

Main Performance Parameters

Unit Model	Pump Model		Pumping Speed L/s	Maximum Suction Inlet Pressure Pa	Ultimate Pressure Pa (Absolute)		Total Power KW
Unit Model	Main Pump	Foreline Pump	Pumping Speed L/s	Maximum Suction Inlet Pressure Pa	Water Ring Unit	Oil Ring Unit	Total Power KW
JZJ2BW30-1	ZJ30	2BV5110	30	12000	267	80	4.75
JZJ2BW70-2	ZJ70	2BV5110	70	6000			5.5
JZJ2BW70-1	ZJ70	2BV5111	70	12000			7
JZJ2BW150-2A	ZJ150	2BV5111	150	6000			8.5
JZJ2BW150-2B	ZJ150	2BV5121	150	8000			10.5
JZJ2BW150-1	ZJ150	2BV5131	150	10000			14
JZJ2BW300-2A	ZJ300	2BV5131	300	4000			15
JZJ2BW300-2B	ZJ300	2BV5161	300	5000			19
JZJ2BW30-2.1	ZJ30	ZJ15, 2BV2061	30	8000	25	0.8	2.8
JZJ2BW70-2.1	ZJ70	ZJ30, 2BV5110	70	6000			6.25
JZJ2BW150-2.1	ZJ150	ZJ70, 2BV5111	150	6000			10
JZJ2BW150-4.1	ZJ150	ZJ30, 2BV5110	150	3000			7.75
JZJ2BW300-2.1	ZJ300	ZJ150, 2BV5131	300	5000			18
JZJ2BW300-2.2	ZJ300	ZJ150, 2BV5121	300	4000			14.5
JZJ2BW300-4.1	ZJ300	ZJ70, 2BV5111	300	2000			11
JZJ2BW600-4.1	ZJ600	ZJ150, 2BV5131	600	1500			19.5
JZJ2BW600-2.2	ZJ600	ZJ300, 2BV5161	600	2000			24.5
JZJ2BW1200-4.2	ZJ1200	ZJ300, 2BV5161	1200	1000			30
JZJ2BW30-2.1.1	ZJ30	ZJ15, ZJ15, 2BV2061	30	8000	0.5	0.05	3.35
JZJ2BW70-2.2.1	ZJ70	ZJ30, ZJ15, 2BV2061	70	4000			4.3
JZJ2BW70-2.1.1	ZJ70	ZJ30, ZJ30, 2BV5110	70	6000			7
JZJ2BW150-2.2.1	ZJ150	ZJ70, ZJ30, 2BV5110	150	3000			9.25
JZJ2BW300-2.2.1	ZJ300	ZJ150, ZJ70, 2BV5111	300	3000			14
JZJ2BW300-4.2.1	ZJ300	ZJ70, ZJ30, 2BV5110	300	1200			10.25
JZJ2BW600-2.2.1	ZJ600	ZJ300, ZJ150, 2BV5131	600	2500			23.5
JZJ2BW600-4.2.1	ZJ600	ZJ150, ZJ70, 2BV5111	600	1200			15.5
JZJ2BW1200-4.2.1	ZJ1200	ZJ300, ZJ150, 2BV5131	1200	1000			29

Unit Model	Pump Model		Pumping Speed L/s	Maximum Suction Pressure Pa	Ultimate Pressure Pa (Absolute)		Total Power KW
	Pump Model				Water Ring Unit	Oil Ring Unit
	Main Pump	Foreline Pump			Water Ring Unit	Oil Ring Unit
JZJ2SW30-1	ZJ30	2SK-1.5	30	12000	267	80	4.75
JZJ2SW70-2	ZJ70	2SK-1.5	70	6000			5.5
JZJ2SW70-1	ZJ70	2SK-3	70	10000			9
JZJ2SW150-2	ZJ150	2SK-3	150	6000			10.5
JZJ2SW150-1	ZJ150	2SK-6	150	10000			18
JZJ2SW300-2	ZJ300	2SK-6	300	4000			19
JZJ2SW300-1	ZJ300	2SK-12	300	8000			26
JZJ2SW600-2A	ZJ600	2SK-12	600	4000			27.5
JZJ2SW600-2B	ZJ600	2SK-20	600	7000			42.5
JZJ2SW70-2.1	ZJ70	ZJ30, 2SK-1.5	70	6000	25	0.8	6.25
JZJ2SW150-2.1	ZJ150	ZJ70, 2SK-3	150	6000			12
JZJ2SW300-2.1	ZJ300	ZJ150, 2SK-6	300	5000			22
JZJ2SW600-2.1	ZJ600	ZJ300, 2SK-12	600	4000			31.5
JZJ2SW150-4.1	ZJ150	ZJ30, 2SK-1.5	150	3000			7.75
JZJ2SW300-4.1	ZJ300	ZJ70, 2SK-3	300	2000			13
JZJ2SW600-4.1	ZJ600	ZJ150, 2SK-6	600	1500			23.5
JZJ2SW1200-4.1	ZJ1200	ZJ300, 2SK-12	1200	1000			37
JZJ2SW300-4.2.1	ZJ300	ZJ70, ZJ30, 2SK-1.5	300	1200	0.5	0.05	10.25
JZJ2SW600-4.2.1	ZJ600	ZJ150, ZJ70, 2SK-3	600	1200			17.5
JZJ2SW1200-4.2.1	ZJ1200	ZJ300, ZJ150, 2SK-6	1200	1000			33
JZJ2SW2500-4.2.1	ZJ2500	ZJ600, ZJ300, 2SK-12	2500	1000			53.5

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