THERMON G25, M-25 M-25V Series FLO-DRI Filters User Manual

June 9, 2024
THERMON

THERMON G25, M-25 M-25V Series FLO-DRI Filters
THERMON G25, M-25 M-25V Series FLO-DRI Filters

Important Safety Instructions

WARNING. Improper installation adjustment, alteration, excessive vibration, service, or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing, operating or servicing this equipment.

Special Notes
The following special notices highlight important information in the installation, operation and maintenance sections.

This symbol indicates a potentially hazardous situation, which, if not avoided, can result in personal injury or damage to the equipment.
This symbol indicates a potentially hazardous situation, which, if not avoided, may be a shock hazard.
This symbol indicates an imminently hazardous situation, which, if not avoided, could result in death or serious injury.

FILTER MAINTENANCE INSTRUCTIONS

  1. The following simple maintenance procedures will ensure maximum FLO‑DRI filtering efficiency and a longer filter life.
  2. FLO‑DRI cartridges should be examined frequently until a pattern of usage is established.
  3. Failure to replace cartridges in an expedient fashion may result in excessive pressure drop and the possibility of contaminant carry over. Refer to the FLO‑DRI Cartridge Change-Out Calculator available on Thermon’s website for recommended change out schedules. This calculator allows the user to determine an accurate cartridge replacement schedule based on their specific application. If the calculator is unavailable, replace cartridges every 30 days or when the cartridge appears to be contaminated.
  4. Do not subject the unit to vapours or liquids from synthetic solvents, acetone, methanol, esters, lacquer thinners, phosphates, etc.

TO CHANGE FLO-DRI CARTRIDGES

WARNING. Never replace filter cartridge when the unit is under pressure. Always follow safe work procedures when working with high pressure.
TO CHANGE FLO-DRI CARTRIDGES

  1. Close inlet, wait for unit to vent, then close the outlet isolation valve to the FLO-DRI filter.

  2. To vent filter, open drain cock. Make certain filter is COMPLETELY VENTED and under NO pressure prior to removing the top end cap.

  3. To remove the end cap: depress, turn counter clockwise and pull out. DO NOT LOOSEN CASTLE NUTS.

  4. Inspect filter media. Replace when completely saturated, or earlier.
    WARNING. If is essential to positively confirm close of top cap prior to re-pressurizing system.

  5. Insert two new FLO-DRI cartridges (sewn end down) into the filter unit.

  6. Replace end cap, close drain cock and open isolation valves before returning FLO-DRI unit to service.
    WARNING. Do not reused contaminated media.

FILTER INSTALLATION INSTRUCTIONS

  1. For maximum efficiency, FLO‑DRI unit should be installed as indicated in Figure 2.
    FILTER INSTALLATION INSTRUCTIONS

  2. Install in a vertical position only.

  3. Tighten fittings into casting 6.25 to 6.75 turns. Do not over-tighten threaded connections. This may lead to thread damage or possible cracking of the casting.

  4. Ensure flow direction is as indicated on the unit.

  5. Installation of drain leg is highly recommended.
    Table 1 – Scrubbing SystemScrubbing
    System| Model No.| PSIG| No. of
    Cartridges| Overall
    Length| Overall
    Diameter| Port to
    Port| Pipe
    Size| Bed Cubic| Cartridge
    Media Part
    No.
    ---|---|---|---|---|---|---|---|---|---
    in| mm| in| mm| in| mm| N PT| in3
    Natural Gas| FLODRI-G25A| 250| 2| 12.88| 327| 5.25| 133| 8.13| 206| 3/4|  | FLODRI-25AA
     | FLODRI-25AC
    30.78| FLODRI-25MS
    Compressed Air| FLODRI-M25V| 125| FLODRI-25R
    FLODRI-M25A| 250

CARTRIDGE MEDIA

D.1 Natural Gas
AA – Moisture Removal
AC – Odor Removal
MS – H2
S & Moisture Removal

D.2 Compresssed Air Cartridge Media
R – Moisture, Oil and Heavy Liquids Removal, Air Purifier

PARTS LIST

Figure 3 – FLO-DRI cross section view
PARTS LIST

Table 2 – G-25, M-25 & M-25V Parts List

Item No. Req, Part No.. Description
A 1 Barrel
B 3 Tie rod
C 2 End cap
D 2 10377 Perforated disc, 25 Series
E 1 10296 Screen, 25 Series, 304SS
F 1 10376 Spring, 25 Series, SST
G 2 10282 O-Ring, End cap, 25 Series,

Buna

H| 2| 12639| O-Ring, Probe, 25 Series, Buna
I| 2| –| O-Ring, Body, 25 Series, Buna
J| 1| –| Plug, 1/8″ Galvinized hex head
K| 1| –| Drain cock, Assembly, 1/8 NPT
L| 2| –| FLO-DRI cartridge
M| 1| 10378| Membrane, 25 Series 2″ X

0.100″ Polyester

N| 1| 10368| Snap ring, 25 Series, SST
O| 2| –| Body

Table 3 – Replacement FLODRI-MTG25

No. Req. Part No. Description
2 12426 Bracket, Mounting G25

Scrubber

4| 7597| Bolt, 1/4-20 UNC X 1/2″ HEX SST
4| A10686-34| 1/4″ 18-8 Split Lock 304SS
4| 9070| Washer, Flat 1/4″ 18-8 304SS

Table 4 – Replacement FLODRI-ORING 25 Kit

Item No. Req, Part No.. Description

G

|

2

|

10282

| O-Ring, End cap Lower, 25 Series, Buna
H| 2| 12639| O-Ring, Probe, 25 Series, Buna
M| 1| 10378| Membrane, 25 Series 2″ X 0.100″ Polyester
–| 1| 10347| O-Ring lube, 6 gram packet

CHANGE-OUT SCHEDULE FOR FLO-DRI

Table 5, page 6 shows cartridge change-out frequencies in days for each model heater and gas scrubber for H2S and moisture.
To determine the cartridge change-out frequency in days for other H2S moisture concentrations, use the formulas provided in the examples.

Table 5 – Flo-Dri Cartridge Change Schedule in Days

WX Series Rating (Btu/ hr) Sour Gas H2S Moisture (50ppm)
FloDri10MS Days FloDri25MS Days FloDri10MS Days FloDri25MS Days
6×6 1,250 450 1,167
6×12 2,500 225 583
6×24 5,000 112 291
8×8 2,222 253 656
10×12 4,167 135 350
12×12 5,000 112 291
12×24 10,000 56 145
12×36 15,000 37 97
12×48 20,000 28 72
12×60 25,000 22 58
12×72 30,000 18 48
18×24 15,000 37 97
18×30 18,750 30 77
18×36 22,500 25 64
18×48 30,000 18 48
18×60 37,500 15 38
18×72 45,000 12 32
24×24 20,000 28 72
24×30 25,000 22 58
24×36 30,000 18 48
24×48 40,000 14 36
24×60 50,000 11 29
24×72 60,000 9 24

Example 1: Sour Gas H2S
CHANGE-OUT SCHEDULE FOR FLO-DRI

Your installation has a Cata‑DyneTM heater, model WX 12×24, 10,000 Btu/hr (2.928 kW/hr) natural gas using a model FloDri-10MS cartridge.

  • The concentration of H2S in your gas supply is 25 ppm.
  • The change-out frequency for 10 ppm is 70 days (derived from Table 5).
  • COF = 56 days x (10 ppm/25 ppm) = 22 days
  • The FloDri-10MS scrubber cartridge should be changed once every 22 days.

Example 2: Moisture
CHANGE-OUT SCHEDULE FOR FLO-DRI

Your installation has a Cata‑DyneTM heater, model WX 12×24, 10,000 Btu/hr (2.928 kW/hr) natural gas using a model FloDri‑10MS cartridge.

  • The concentration of H2S in your gas supply is 25 ppm.
  • The change-out frequency for 50 ppm is 45 days (derived from Table 5).
  • COF = 45 days x (50 ppm/25 ppm) = 90 days
  • The FloDri-10MS scrubber cartridge should be changed once every 90 days.

TO ORDER

Model number and cartridge media part number.

WARRANTY

Under normal use the Company warrants to the purchaser that defects in material or workmanship will be repaired or replaced without charge for a period of 18 months from date of shipment, or 12 months from the start date of operation, whichever expires first. Any claim for warranty must  be reported to the sales office where the product  was purchased for authorized repair or replacement within the terms of this warranty.
Subject to State or Provincial law to the contrary, the Company will not be responsible for any expense for installation, removal from service, transportation, or damages of any type whatsoever, including damages arising from lack of use, business interruptions, or incidental or consequential damages.
The Company cannot anticipate or control the conditions of product usage and therefore accepts no responsibility for the safe application and suitability of its products when used alone or in combination with other products. Tests for the safe application and suitability of the products are the sole responsibility of the user.
This warranty will be void if, in the judgment of the Company, the damage, failure or defect is the result of:

  • Vibration, radiation, erosion, corrosion, process  contamination, abnormal process conditions, temperature and pressures, unusual surges or pulsation, fouling, ordinary wear and tear, lack of maintenance, incorrectly applied utilities such as voltage, air, gas, water, and others or any combination of the aforementioned causes not specifically allowed for in the design conditions or,
  • Any act or omission by the Purchaser, its agents, servants or independent contractors which for greater certainty, but not so as to limit the generality of the foregoing, includes physical, chemical or mechanical abuse, accident, improper installation of the product, improper storage and handling of the product, improper application or the misalignment of parts.

No warranty applies to paint fi nishes except for  manufacturing defects apparent within 30 days from the date of installation.
The Company neither assumes nor authorizes any person to assume for it any other obligation or liability in connection with the product(s).
The Purchaser agrees that all warranty work required after the initial commissioning of the product will be provided only if the Company has been paid by the Purchaser in full accordance with the terms and conditions of the contract.
The Purchaser agrees that the Company makes no warranty or guarantee, express, implied or statutory, (including any warranty of merchantability or warranty of fitness for a particular purpose) written or oral, of the
Article or incidental labour, except as is expressed or contained in the agreement herein.

LIABILITY

Technical data contained in the catalog or on the website is subject to change without notice.

The Company reserves the right to make dimensional and other design changes as required. The Purchaser acknowledges the Company shall not be obligated to modify those articles manufactured before the formulation of the changes in design or improvements of the products by the Company.

The Company shall not be liable to compensate or indemnify the Purchaser, end user or any other party against any actions, claims, liabilities, injury, loss, loss of use, loss of business, damages, indirect or consequential damages, demands, penalties, fines, expenses (including  legal expenses), costs, obligations and causes of action  of any kind arising wholly or partly from negligence or omission of the user or the misuse, incorrect application, unsafe application, incorrect storage and handling, incorrect installation, lack of maintenance, improper maintenance or improper operation of products furnished by the Company.

Customer Service

Edmonton
1-780-466-3178
F 780-468-5904
5918 Roper Road
Alberta, Canada T6B 3E1

Oakville
1-800-410-3131
1-905-829-4422
F 905-829-4430

Orillia
1-877-325-3473
1-705-325-3473
F 705-325-2106

Houston
1-800-654-2583
1-713-433-2600
F 713-433-4541

Denver
1-855-244-3128
1-303-979-7339
F 303-979-7350

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