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I N N OVAT I V E C O M P R E S S E D A I R S O L U T I O N S

COMPRESSED AIR SOLUTIONS

TM

Hydronix

HEATLESS PURGE DESICCANT AIR DRYERS MPS SERIES 20-60 scfm HPS SERIES 80-4500 scfm

TM

www.zeks.com

H Y D R O N I X TM

H E A T L E S S

P U R G E

D E S I C C A N T

A I R

D R Y E R S

DELIVERING

POWERFUL

Purge pressure gauge indicates reactivation flow rate Removable stainless steel retainer screens High strength desiccant for long life

COMPRESSED AIR

Purge flow adjustment valve

Use of ZEKS' HydronixTM Desiccant Air Dryers is an efficient and reliable means of providing dry compressed air for extremely moisture-sensitive applications. These dryers use a heatless purge process for desiccant regeneration to deliver dry compressed air that has a dew point of -40°F. Hydronix models can be selected to achieve dew points as low as -80ºF or -100°F. The heatless purge process consumes little energy while reliable valve and switching components provide consistent performance for long dryer life. Available in a broad range of compressed air flow capacities, the Hydronix dryer family employs proven design, reliable components and integrated controls to provide compatibility and continuous trouble-free operation in compressed air systems.

Separate FILL and DRAIN ports

Towers sized for low velocity and high contact time

ASME required relief valves Vessels in accordance with ASME Section VIII, Div. 1 Visual dryer performance indicator Particulate control air line filter Enclosed wiring for maximum protection Tower pressure gauges

Standard light indications: · Power ON · Left tower DRYING · Right tower DRYING

Mufflers with built-in relief valves for low noise and maximum protection

SIZING PROCEDURE For inlet flows at operating pressures other than 100 PSIG, multiply the standard capacity by the correction factor from the table below.

Example: 410 SCFM x .91 = 373 SCFM @ 90 PSIG For purge air requirements, multiply the inlet flow by the purge rate factor from the table. 373 SCFM x .160 = 59.7 SCFM @ 90 PSIG Outlet Flow = Inlet Flow ­ Purge Flow

Solid state timer for accurate control and operation

Simple, safe, reliable switching valves

Normally closed exhaust valves (spring-assisted) provide fail-safe operation (Shown with optional equipment)

SELECTION CHART

Model Flow Capacity* -40° Dew Point -80° Dew Point -100° Dew Point Width in. (cm) Depth in. (cm) Height in. (cm) Air Connection In & Out Shipping Weight lbs. (kg) Desiccant Weight lbs. (kg) Maximum Working PSIG** 20MPS 30MPS 40MPS 60MPS 20 30 40 60 16 24 32 48 16 24 32 48 22 (56) 22 (56) 22 (56) 22 (56) 15 (38) 15 (38) 15 (38) 15 (38) 31 (79) 44 (112) 44 (112) 56 (142) 1/2"FPT 1/2"FPT 3/4"FPT 3/4"FPT 200 (91) 230 (104) 255 (116) 300 (136) 22 (10) 44 (20) 44 (20) 65 (29) 150 150 150 150 80HPS 100HPS 140HPS 80 100 140 64 80 112 64 80 112 26 (66) 27 (69) 29 (74) 26 (66) 26 (66) 26 (66) 85 (216) 85 (216) 85 (216) 3/4"FPT 1"FPT 1"FPT 480 (218) 500 (227) 650 (295) 89 (40) 89 (40) 164 (74) 150 150 150

OPERATING CONDITIONS

Pressure PSIG 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 Correction Factor .78 .82 .87 .91 .95 1.00 1.04 1.09 1.13 1.17 1.22 1.26 1.30 1.35 1.39 1.44 Purge Rate .190 .180 .170 .160 .155 .150 .140 .135 .130 .125 .120 .117 .113 .109 .106 .102

* Capacities shown are for inlet flows at operating pressures of 100 PSIG **Consult factory for operating pressures in excess of 150 PSIG Note: Standard voltage for all models is 115/1/60 & 50 Note: Operating dryers without a coalescing filter with auto drain will void warranty Note: Weights and dimensions are approximate

Hydronix

HEATLESS PURGE DESICCANT AIR DRYERS MPS SERIES 20-60 scfm HPS SERIES 80-4500 scfm

TM TM

DRYING

CAPABILITY

COMPRESSED AIR SOLUTIONS

TM

COMPRESSED AIR SOLUTIONS

TM

DRY AIR OUTLET

EFFICIENT OPERATION AND RELIABLE DESIGN

The heatless dryer works by passing compressed air through a tower filled with desiccant. Moisture from the airstream is adsorbed onto the desiccant thereby producing extremely dry outlet air. While one tower is on-line performing the drying function, the second tower is off-line being regenerated by a portion (approx. 15%) of the discharge dry air flow. This operation is controlled by valves (V1 & V2) which divert the flow of air to the on-line tower and away from the regenerating tower. At the same time, a purge valve (V3 or V4) allows the regenerating air flow entering the off-line tower to escape and thereby purge the moisture adsorbed from the desiccant to the atmosphere. On a -40ºF dewpoint dryer, this process lasts for four minutes and thirty seconds, at which time repressurization of the off-line (regenerating) tower begins to prevent desiccant bed fluidization. The purge valve (V3 or V4) will close so that the off-line tower is allowed to repressurize. After repressurization is complete, the flow valves (V1 & V2) will divert the drying air flow to the previously off-line tower. Simultaneously, a purge valve (V3 or V4) will open allowing the previously on-line dryer tower to depressurize and begin regeneration. This will last for four minutes and thirty seconds at which point the process will again be reversed. The total cycle time is ten minutes.

C1

C2

V5 O1 PI3 RV1 RV2

PI1

PI2

D V1 V3 C M1 WET AIR INLET V2

A

V4 M2 B

DRYING FLOW REGENERATING FLOW

180HPS 280HPS 410HPS 560HPS 730HPS 920HPS 1140HPS 1630HPS 1910HPS 2300HPS 2800HPS 3300HPS 4500HPS 180 280 410 560 730 920 1140 1630 1910 2300 2800 3300 4500 144 224 328 448 584 736 912 1304 1528 1840 2240 2640 3600 144 224 328 448 584 736 912 1304 1528 1840 2240 2640 3600 35 (89) 37 (94) 47 (119) 49 (124) 61 (155) 63 (160) 65 (165) 88 (224) 92 (234) 94 (239) 94 (239) 113 (287) 119 (302) 30 (76) 30 (76) 33 (84) 33 (84) 48 (122) 48 (122) 48 (122) 57 (145) 57 (145) 57 (145) 57 (145) 63 (160) 63 (160) 87 (221) 90 (229) 92 (234) 95 (241) 96 (244) 100 (254) 101 (257) 115 (292) 110 (279) 110 (279) 123 (312) 121 (307) 125 (318) 1-1/2"FPT 1-1/2"FPT 2"FPT 2"FPT 3"FPT 3"FPT 3"FPT 4"FLG 4"FLG 4"FLG 4"FLG 6"FLG 6"FLG 700 (318) 830 (377) 1205 (547) 1400 (636) 1590 (722) 1825 (828) 2478 (1125) 3050 (1385) 3600 (1634) 5200 (2361) 6800 (3087) 7500 (3405) 9600 (4358) 164 (74) 266 (121) 400 (181) 538 (244) 756 (343) 918 (416) 1166 (529) 1830 (830) 2497 (1133) 2300 (1043) 2766 (1255) 3500 (1588) 5800 (2631) 150 150 150 150 150 150 150 150 150 150 150 150 150

FEATURES

MPS HPS MODEL 20-60 80-1140 1630-4500 Power Cord S Wall Mounting (std. units only) S Power ON Light S S S Tower Sequencing Light S S S Tower Pressure Gauges S S S Tower Relief Valves O S S ASME Stamped Vessels S S S CRN Stamped Vessels S S O Removable SS Retainer Screens S S S Fill and Drain Ports (Separate) S S S Solid State Timer Controls S S S Shipped with Desiccant S S S* Adjustable Purge O S S Weatherproof/NEMA 4 O O O NEMA 12** O O O NEMA 7 O O O Moisture Indicator O S S Control Air Line Filter S S Control Air Line Filter Shutoff Valve O S Pneumatic Operation O O O Failure to Shift Alarm O O O Moisture Load Control (includes FTS) O O O High Humidity Alarm O O O Remote Alarm Contacts O O O Factory Mounted Pre and Afterfilters O O O 3-Valve Bypass for Filters and/or Dryer O O O 250 PSIG Design O O O UL/ULC Certified Enclosure O O O S-Standard O-Optional * Models 2800-4500 shipped separately **Built to NEMA 4 Standards

DRYER COMPONENTS The Valves The control valves used on the HPS series of ZEKS Hydronix heatless desiccant dryers are non-lubricated, air-operated, diaphragm valves. The valve design allows for higher flows with a lower associated pressure drop than alternate valve designs. The valve's unique seating design is more reliable than four way or shuttle valves, reducing the probability of valve failure due to desiccant dust and other foreign contaminants. Integral moving parts made of non-corrosive material, in conjunction with a preformed and stress relieved diaphragm, provide durability and long cycle life. In the demanding fast-cycling world of heatless desiccant dryers, any type of valve is subject to maintenance. In those instances, it is crucial that repair can be completed quickly to minimize downtime. The ZEKS Hydronix valves are designed so that if valve repair is required, all internal components can be easily removed and replaced without disturbing dryer piping or removing the valve body.

The Timer The Hydronix desiccant dryer is controlled by a state-of-the-art timer, delivering consistent, trouble-free dryer operation. This device requires no adjustments in order to achieve reliable sequencing of the valve cycling. Also available within the solid state timer technology is the capability of reducing the amount of regeneration air consumed with the addition of the ZEKS AirMizer feature. AirMizer The ZEKS AirMizer option features a solid state controller integrated with a moisture analyzer which allows for automatic adjustment of purge air usage based on actual demand. The AirMizer prevents the purge exhaust valves from opening until a predetermined moisture load is adsorbed by the desiccant beds. This is achieved by the use of in-bed air sampling probes which continuously monitor the "drying tower" for moisture content. Unlike other systems that are based on indirect readings such as temperature rise, inlet loading conditions or desiccant conductivity, the AirMizer monitors exactly what you paid for -- dry air. As long as the sampling probes "see" dry air, no purge air is consumed. With the use of the AirMizer, yearly operating costs can be substantially reduced. As an addition to the AirMizer option, failure to shift alarm is included.

Specifications, illustrative materials and descriptions contained herein were as accurate as known at the time this publication was approved for printing. The company reserves the right to change specifications, discontinue models, equipment or design without notice and without incurring obligation. The information set out in this brochure is for preliminary information only and is not intended to constitute any representation or warranty by ZEKS to potential customers or to form the basis of a contract with any customer.

Hydronix

HEATLESS PURGE DESICCANT AIR DRYERS MPS SERIES 20-60 scfm HPS SERIES 80-4500 scfm

TM TM

1302 Goshen Parkway West Chester, PA 19380 610-692-9100 800-888-2323 FAX 610-692-9192 www.zeks.com

©2001, ZEKS Compressed Air Solutions

Form: HPS-0201-7.5M-DBO

Printed in USA

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