2017 Latest Design Air Ventilation Valve - Liquid Circulation Heat Exchangers – Holtop

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Our enterprise since its inception, constantly regards product good quality as organization life, constantly improve production technology, strengthen merchandise high quality and continuously strengthen enterprise total good quality administration, in strict accordance with all the national standard ISO 9001:2000 for Small Heat Exchanger, Recuperator, Fresh Air Ventilation Systems, With a wide range, good quality, realistic charges and stylish designs,Our products and solutions are widely recognized and trusted by users and can fulfill continuously changing economic and social needs.
2017 Latest Design Air Ventilation Valve - Liquid Circulation Heat Exchangers – Holtop Detail:

Liquid Circulation Heat Exchanger 

Working Principle

Liquid circulation heat exchanger is liquid to air heat exchanger, heat exchangers installed in both fresh air side and exhaust air side, the pump between the 2 heat

exchangers make the liquid circulate then the heat in the liquid preheat or precool the fresh air. Normally the liquid is water but in order to decrease the freezing point,

moderate ethylene glycol will be added into the water according to reasonable percentage.

Features

(1) Fresh air and exhaust air heat exchanged by separated liquid pipes, zero cross contamination.Suitable for hospital, germfree lab and industries which discharge

poisonous and harmful gas.

(2) Stable and reliable operation, long service life

(3) Flexible connection between fresh air and exhaust air exchangers, easy installation which is convenient for old AHU improvement.

(4) Accessories like water pump, heat exchangers are conventional, easy and low maintanence costs.

(5) Wide range of application, various connection ways like one to one, one to many or many to many.

Specifications

(1) Liquid circulation heat exchanger is sensible heat exchanger, efficiency is between 55% to 60%.

(2) Suggested rows are 6 or 8, face velocity not over 2.8m/s

(3) The choice of circulating pump can refer to the fresh air and exhuast air pressure drop and the waterflow pressure drop.

(4) Air flow direction has significant effect on the heat recovery efficiency, influence rate up to 20%.

(5) Freezing point of the hybrid ethylene glycol and water should be 4 to 6 celsius lower than the local minimum winter outdoor temperature, percentage of hybridcan

be refered to the following table.

Freezing point -1.4 - 1.3 -5.4 -7.8 -10.7 -14.1 -17.9 -22.3
Weight percentage (%) 5 10 15 20 25 30 35 40
Volume percentage (% ) 4.4 8.9 13.6 18.1 22.9 27.7 32.6 37.5
5 6

Product detail pictures:

2017 Latest Design Air Ventilation Valve - Liquid Circulation Heat Exchangers – Holtop detail pictures

2017 Latest Design Air Ventilation Valve - Liquid Circulation Heat Exchangers – Holtop detail pictures


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We always think and practice corresponding to the change of circumstance, and grow up. We purpose at the achievement of a richer mind and body as well as the living for 2017 Latest Design Air Ventilation Valve - Liquid Circulation Heat Exchangers – Holtop, The product will supply to all over the world, such as: Algeria, Kuwait, Kuala Lumpur, We supply professional service, prompt reply, timely delivery, excellent quality and best price to our customers. Satisfaction and good credit to every customer is our priority. We focus on every detail of order processing for customers till they have received safe and sound products with good logistics service and economical cost. Depending on this, our products are sold very well in the countries in Africa, the Mid-East and Southeast Asia.
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Cooperate with you every time is very successful, very happy. Hope that we can have more cooperation!
5 Stars By Alberta from Detroit - 2016.11.29 11:09
It is not easy to find such a professional and responsible provider in today's time. Hope that we can maintain long-term cooperation.
5 Stars By Nicole from Armenia - 2016.08.15 12:36

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