Liquid distributors
Know-How by Montz for
maximum performance

 Liquid distributor type N

Liquid distributors are the most important equipment for packed columns. The high separation performance of structured packings is only achieved with high-precision liquid distributors. Through years Montz has acquired the know-how necessary to design efficient liquid distributors.

 Advantages of Montz-Liquid distributors
 Quality Assurance
 Liquid distributors Type S
 Liquid distributors Type R
 Liquid distributors Type N
 Combination distributors
 Tubular distributors

Advantages of Montz-Liquid distributors

Distributing uniformity: deviations between
   the individual drip points less than 5%
   guaranteed, mostly less than 3%
Numbers of drip points:
   70 to >250 per m2 (depending on
   application and liquid load)
Liquid loads: depending on the design
   of the distributor <0.1 to >250 m3/m2/h
   (distributors for 20 litres/m2/h have been
   successfully applied e.g.
   distillation of glycerine)
Flexibility: standard turn down ratio 1:3
   (higher ranges of loading – e.g. 1:10 and
   more – are achievable by using
   multi-stage distributors)
Design know-how for viscous liquids
Diameter: Distributor for diameters
   from 70 mm to 12 m and bigger.
The same principle of design for
   diameters from 200 mm to >12 m.
Liquid feeding by pre-distribution system
   adapted to therespective application.
Contamination: Designs which are
   insensitive to dirt and in particular to
   sedimentable impurities.
Simple adjustability by standard fitter’s tools.
Solid fixing at the column wall.
Assembly and inspection of the
   liquid distributors through manholes for
   columns from DN 800. In smaller columns
   assembly is effected through shell flanges.

Liqiud distributor type R

Liquid distributor type R
for assembly through
shell flanges


Quality Assurance



All liquid distributors manufactured by Montz are subject to a quality test with water on our test facilities. The water test is free of additional costs and executed before shipment. The following is an integral part of quality and performance test:

Liquid distributors type R

Montz-liquid distributor type R
for assembly through manholes DN 600


Quality of manufacture
Tightness
Distribution accuracy
   The distribution accuracy is determined
   on basis of the flow from the
   individual drip points. 
Throughput and operating range
   The test is performed in the presence
   of the customer. For each distributor
   a test report is issued.



Julius Montz has test equipment available from two to eight meter diameter in a separate building. Distributors exceeding eight meter dia. will be tested in the open air on a test bench installed for this purpose. The test benches are provided with pumps featuring a capacity of 2000 m3/h of liquid. The set-up is equipted with suspension and levelling elements also used in the columns.

Liquid distributors Type S
Solutions for extremely small sprinkling densities

The patented liquid distributor Type S is suitable for extremely small sprinkling densities.The special design enables a high density of drip points,so that the packing surface is completely wetted even with small amounts of liquid.

Channel-type distributor Type S

The basic design of the Montz
channel-type liquid distributor Type S
is the tried and trusted Montz
modular system.The standard drain
tubes have additional drainage
sleeves so that the liquid flows
from each tube is split into a number
of small individual flows.The design
enables drip point densities of at
least 100 per m2 for even small
amounts of liquid.
Liquid distributor type S

Liquid distributor type S

 Special design of the Montz
liquid distributor Type S for the
lowest liquid sprinkling densities

The liquid distributor Type S shown
here is one example of a solution to
a customer's problem for distributing
small volumes of liquid

Liquid distributor type S
Montz liquid distributor Type S
for use in a dividing wall column

Patents
  US5269465
  JP7198288
  DE4114278
  EP0512277

Liquid distributors Type R and Type N
Solutions for all kinds of application

Montz can offer a comprehensive range of liquid distributors adapted to various fields of application. As a result of many years of research and development, they fulfill the highest quality requirements and ensure an excellent perfomance.

Liquid distributor type R Liquid distributor type N

Channel-type distributor Type R

Liquid outlet through drain tubes welded
   into the channels. Each drain tube has
   holes through which the liquid flows a few
   centimetres above the bottom of the channel.
Multi-stage designs are possible by the
   arrangement of several holes one
   above the other
Operating ranges:
   1-stage: approx. 1:3
   2-stage: approx. 1:10
   (higher ranges on request)
Number of drip points: 60 to 200 per m2
Throughputs approx. 0.3 to >250 m3/m2/h
Insensitive to sedimentable dirt particles
Channel-type distributor Type N

Liquid outlet through holes in the
   bottom of the channels
Operating range 1:3
Number of drip points depending
   on the volume of liquid:
   60 to 200 per m2
Throughputs approx. 0.3 up
   to >250 m3/m2/h
Limited use for liquids
   containing solids




Combination distributors
Montz combination distributors and tubular distributors

Combination distributors serve as liquid collectors and distributors.Chimneys with covers ensure the passage of the rising vapour and the collection of the liquid.The packings are fed with the liquid through holes or drain tubes.

Combination distributor type KFR Combination distributor type KN

Combination distributor Type KFR

For small column diameters for
   installation between flanges
Liquid outlet through drain tubes
Operating range:
   1-stage 1:3
   2-stage 1:10
Throughputs approx. 0.2 to >250
   m3/m2/h

Combination distributor Type KR

Drain tubes instead of holes are
   used in this case
Operating range
   1-stage: approx.1:3
   2-stage: approx.1:10
All other characteristics as
   for Type KN

Combination distributor Type KN

Holes in the bottom beside and
   between the shafts uniformly
   distribute the liquid over the
   packing arranged underneath
Assembly through manholes
Operating range approx.1:3
Number of drip points:approx.
   60 to 100 per m2
Throughputs approx.1 to >250
   m3/m2/h
Relatively insensitive to
   contamination

Tubular distributors

The tubular distributors consist of a centrally arranged main tube with secondary tubes laterally arranged at right angle.The liquid is feed into the main tube. The distributor is fixed at a support inside the column. Each of the lateral tubes is exactly adjustable. Assembly is effected through manholes or via shell flanges.

Tubular distributor type RO

 Tubular distributor type ROD

Tubular distributor Type RO

Outlet through holes on the underside
Operating range approx. 1:3
   (higher ranges on request)
Number of drip points: approx. 60
   to 100 per m2
Throughputs approx.1 to 250
   m3/m2/h

Tubular distributor Type ROD

Same design as Type RO but nozzles
instead of holes for the distribution
of the liquid


Julius Montz GmbH, Postbox 530, D-40705 Hilden, Tel. 0049/ 2103/ 894-0, Fax 0049/ 2103/ 894-77