Xylem Bell & Gossett C Series User manual

INSTRUCTION MANUAL
HS-222G
510837

INLET
TEST
INLET
OUTLET
OUTLET
TEST
OUTLET
INLET
TEST
INLET
OUTLET
TEST
T
2
1. Determine where to install the trap, based on the
following requirements:
• The trap must be located as close as possible to, and
below the equipment to be drained.
• The trap must be in a straight run of horizontal pipe as
shown in the “Typical Piping Diagrams,” and pitched to
allow condensate to flow into trap inlet, and away from
trap outlet.
• Allow for enough space around the trap for servicing,
which may include removal of the body or cover,
depending on the model you are installing.
The Hoffman Series H traps provide an additional opening
where a test valve may be installed. On traps that do not
have an additional opening, the test valve can be installed
in a tee fitting in the discharge line.
OPERATION
Float and thermostatic traps have two basic elements: a
thermostat for venting air from the system during start-up
and a float assembly for draining condensate.
The thermostat is normally open. It allows air to vent until it
is within 10-30°F (4-12°C) of the steam temperature.
The float assembly drains condensate from the system
when buoyancy force lifts the float ball and opens the
valve. The weight of the float ball causes the pin to close
against the trap seat when condensate is not present.
Materials of Construction
Part Specifications
Body and Cover Cast Iron 30,000 psi tensile
Valve Pin and Seat Stainless Steel (Hardened)
Float Stainless Steel
Lever Assembly Stainless Steel
Thermostatic Air Vent Stainless Steel Cage and
Thermal Element
Cover Bolts Grade 5
Baffle Stainless Steel {21
/2” units only}
To prevent serious personal injury from steam
pipe blow down, connect a temporary pipe
between the steam pipe opening and a drain,
or stand at least 100 ft. (30m) from the pipe
opening.
Failure to follow this warning could cause
property damage, personal injury, or death.
!
WARNING
INSTALLATION –
Series H, C and X Float and
Thermostatic Steam Traps
STEP 1

Shut-Off
Valve "Y" Strainer
To Drain
To Return Line
Trap
Gravity Return to
Vented Receiver
Test Valve
Equipment Drain Point
Static
Head
Dirt Pocket
Inlet
Outlet
Shut-Off
Valve
Dirt
Pocket
Drain Plug
Outlet Valve
Supply
Inlet
Valve Y Strainer
Cover Bolts
Thermostatic
Vent Pipe to
Gravity Return
Line or Drain
Pipe Supports Support Foot
Inlet
Outlet
Trap
TYPICAL PIPING DIAGRAMS
Supply
Inlet
Valve Y Strainer
Cover Bolts
Eye Hook
Dirt
Pocket
Pipe Supports
Drain Plug
Outlet Valve
Inlet
Outlet
Series H Trap Draining to Gravity Return Line
Series C and X Pattern Trap Installations
2
1
⁄ 2 " Series C Pattern Trap Installations
• Install a Hoffman Specialty Y-strainer in the pipe,
ahead of the steam trap. This prevents dirt from
entering the trap.
• Install a blow down valve by connecting it to the
strainer drain plug. This allows the Y-strainer to be
cleaned.
• Install a shut-off valve in the inlet pipe and the outlet
pipe. This allows the trap to be isolated when
servicing.
• Install a test valve in the outlet pipe, and cap it. This
allows the trap to be tested. The cap is used as
safety precaution when the unit is not being tested.
• Blow down the piping using full steam pressure for
(5) five minutes. This cleaning process will remove
debris from the pipe and oil from the system.
Test traps by following the “Troubleshooting” procedure
on page 6.
3
To prevent serious personal injury from
steam pipe blow down, connect a temporary
pipe between the steam pipe opening and a
drain, or stand at least 100 ft. (30m) from
the pipe opening.
Failure to follow this warning could cause
property damage, personal injury, or death.
!
WARNING
STEP 2
IMPORTANT: To prevent system damage from water
hammer or sudden shock, open supply valves slowly.
If you are uncertain about the product’s adaptability
for your application, please call the factory or
authorized representative before using the product.
The trap seat rating (stamped on the nameplate) must
be equal to or greater than the maximum pressure
differential across the trap.

REPAIR PROCEDURES FOR ALL TRAPS
REMOVAL FROM SERVICE
1. Close inlet and outlet supply valves and allow unit to
cool. If a test valve is installed, open this valve to
relieve any pressure.
2. Remove the drain plug to drain condensate from the
trap body.
3. Remove the bolts that attach the cover to the body.
SERIES H TRAPS
REPAIR
4. With cover assembly removed from trap body, remove
pin that holds lever assembly to yoke. Inspect seat
and pin for wear, replace if worn.
5. Inspect thermostatic element by placing it in boiling
water to see if it closes. If it doesn't close, replace it.
6. Check alignment of pin and seat, adjust or replace
parts as necessary.
7. Check float ball for damage, shake the float to make
sure there is no fluid inside the float. Replace if
necessary.
8. Clean gasket surfaces and install new cover gasket.
9. Reassemble the cover to the body. Tighten the bolts in
the indicated sequence shown on page 5. Torque all
bolts evenly to the indicated values.
SERIES C & X TRAPS
REPAIR
4. With body assembly removed from trap cover, remove
pin that holds lever assembly to yoke. Inspect seat
and pin for wear, replace if worn.
5. Inspect thermostatic element by placing it in boiling
water to see if it closes. If it doesn't close, replace it.
6. Check alignment of pin and seat, adjust or replace
parts as necessary.
7. Check float ball for damage, shake the float to make
sure there is no fluid inside the float. Replace if
necessary.
8. Clean gasket surfaces and install new cover gasket.
9. Reassemble the body to the cover. Tighten the bolts in
the indicated sequence shown on page 5. Torque all
bolts evenly to the indicated values.
To prevent serious burns, the internal
pressure of the trap must be 0 psi
(0 bar) before servicing.
Failure to follow this caution will
cause personal injury.
CAUTION
!
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Thermostatic
Module
Cover
Bolt
(6)
Pin
Seat
Name
Plate
Cover Gasket
Yoke Seat Gasket
Lever Assembly
Drain Plug
Float
Ball
Body
Lock Washer
Screw
INLET
OUTLET
Series H Traps
3
⁄ 4 " and 1
1
⁄ 4 "
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Cover
Name Plate
Seat Gasket
Pin (4)
Lever Seat Assembly
Lever Linkage (3)
Lever Lock Washer
Cover Gasket
Seat
Yoke
Screw
Thermostatic
Module
Bolt
(6)
Body
Float
Ball
INLET
OUTLET
Drain Plug
Series C Trap 1
1
⁄ 4 " and 1
1
⁄ 2 " (Trap Shown)


RETURN TO SERVICE
10. Insert and securely tighten drain plug.
11. Open supply valve on trap outlet side, slowly open the
supply valve to the trap inlet.
12. Check for leaks and normal operation.
Test traps by following the “Troubleshooting” procedure on
page 6.
Gasket Thermostat
Lever
Retainer
Clip
Lever
Assembly
“E” Ring
Cover Yoke
Pin
Seat
Gasket
Float
Ball
19 18 14
10
6
2
4
8
12
16
20
17
13
9
5
1
3
7
11
15
8
4
2
6
9
7
3
1
5
7
4
2
6
3
1
5
47
2
5
3
6
1
5
1
3
4
2
6
Series C Trap Cover 2" Standard Capacity
Pin
Seat
Bracket
“E” Ring
Seat
Yoke
Pins
Seat
Bracket
“E” Ring
Seat
Yoke
Series X Trap Seat and Yoke 2"
Series C Seat and Yoke 2
1
⁄ 2 " Units
Internal Component Detail Illustration Cover Bolt Pattern Layout
Series H
3
⁄ 4 " to 2" Traps and
Series C
1
1
⁄ 4 " and 1
1
⁄ 2 " Traps
with six bolt pattern
Tighten Bolts to 28 +/- 3 ft-lbs.
(38 +/- 4 N-m) Torque
Series H
1
1
⁄ 2 " and 2" Traps
with seven bolt pattern
Tighten Bolts to 28 +/- 3 ft-
lbs. (38 +/- 4 N-m) Torque
Series C 2" Traps
Tighten Bolts to 75 ft-lbs.
(102 N-m) Torque
Series X 2" Traps
Tighten Bolts to 150 ft-
lbs. (205 N-m) Torque
Series C 2
1
⁄ 2 " Traps
Tighten Bolts to 75
ft-lbs. (102 N-m)
Torque
Tighten and torque bolts in numerical order, beginning with #1.


TROUBLESHOOTING
Problem:
1. Improper heating.
a. Cause:Thermostat failed closed and prevents
air from escaping.
Test:Blow air through the thermostat
when it is at normal room tempera-
ture, for a visual check. If air does not
pass through, the thermostat is not
functioning properly.
b. Cause:Float assembly failed closed and
caused condensate to back-up into the
steam space.
Test:Using a stethoscope, listen for a gur-
gling sound. No gurgling indicates that
condensate is not draining.
Using a thermometer, check the trap dis-
charge temperature. If the temperature is
lower than normal, the condensate is not
draining.
c. Cause:Incorrect trap seat pressure selected.
Test:Check seat pressure rating on trap name-
plate. The seat pressure rating must be
equal or higher than the steam supply
pressure.
2. Energy wasted.
a. Cause:Thermostat failed open and allowed live
steam to blow through the trap.
Test:Using a stethoscope, listen for a low pitch
whistle as steam passes through the open
orifice. A whistle indicates the thermostat
failed open.
b. Cause:Float assembly failed open and allowed
live steam to blow through the trap.
Test:Install a test valve in the discharge line
from the trap outlet. Observe the trap
operation for steam leakage. Excessive
steam leakage indicates the float assembly
failed open.
Using a stethoscope, listen for a low pitch
whistle by positioning the stethoscope near
the thermostat or the float assembly. A
whistle indicates the thermostat or float
assembly (depending on where the stetho-
scope is positioned) failed open.
OR
OR
MAINTENANCE
When checked regularly and properly maintained, the
Series FT Float and Thermostatic traps will
provide optimum performance and long life.
SCHEDULE:
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1. Inspect joints for leaks. Stop all leaks by tightening
bolts and replacing gaskets, if necessary.
2. Clean strainers by opening the blow down valve
and allowing full steam pressure to flow out for (2)
two minutes. Then, close the valve.
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CAUTION
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WARNING


7
COMMERCIAL WARRANTY
Warranty. For goods sold to commercial buyers, Seller warrants the goods sold to Buyer hereunder (with the
exception of membranes, seals, gaskets, elastomer materials, coatings and other “wear parts” or consumables
all of which are not warranted except as otherwise provided in the quotation or sales form) will be (i) be built in
accordance with the speciŵcations referred to in the quotation or sales form, if such speciŵcations are expressly
made a part of this Agreement, and (ii) free from defects in material and workmanship for a period of one (1) year
from the date of installation or two (2) years from the date of manufacture, whichever shall occur ŵrst, unless a
longer period is speciŵed in the product documentation (the “:arranty”)
Except as otherwise required by law, Seller shall, at its option and at no cost to Buyer, either repair or replace any
product which fails to conform with the :arranty provided Buyer gives written notice to Seller of any defects in
material or workmanship within ten (1) days of the date when any defects or non-conformance are ŵrst manifest
Under either repair or replacement option, Seller shall not be obligated to remove or pay for the removal of
the defective product or install or pay for the installation of the replaced or repaired product and Buyer shall be
responsible for all other costs, including, but not limited to, service costs, shipping fees and expensesSeller
shall have sole discretion as to the method or means of repair or replacementBuyerős failure to comply with
Sellerős repair or replacement directions shall terminate Sellerős obligations under this :arranty and render the
:arranty voidAny parts repaired or replaced under the :arranty are warranted only for the balance of the
warranty period on the parts that were repaired or replacedSeller shall have no warranty obligations to Buyer
with respect to any product or parts of a product that have been: (a) repaired by third parties other than Seller or
without Sellerős written approval(b) subMect to misuse, misapplication, neglect, alteration, accident, or physical
damage(c) used in a manner contrary to Sellerős instructions for installation, operation and maintenance
(d) damaged from ordinary wear and tear, corrosion, or chemical attack(e) damaged due to abnormal
conditions, vibration, failure to properly prime, or operation without Ŷow(f) damaged due to a defective power
supply or improper electrical protectionor (g) damaged resulting from the use of accessory equipment not
sold or approved by Seller,n any case of products not manufactured by Seller, there is no warranty from Seller
however, Seller will extend to Buyer any warranty received from Sellerős supplier of such products
THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF ANY AND ALL OTHER EXPRESS OR
IMPLIED WARRANTIES, GUARANTEES, CONDITIONS OR TERMS OF WHATEVER NATURE RELATING TO
THE GOODS PROVIDED HEREUNDER, INCLUDING WITHOUT LIMITATION ANY IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, WHICH ARE HEREBY EXPRESSLY
DISCLAIMED AND EXCLUDED. EXCEPT AS OTHERWISE REQUIRED BY LAW, BUYER’S EXCLUSIVE REMEDY
AND SELLER’S AGGREGATE LIABILITY FOR BREACH OF ANY OF THE FOREGOING WARRANTIES ARE
LIMITED TO REPAIRING OR REPLACING THE PRODUCT AND SHALL IN ALL CASES BE LIMITED TO THE
AMOUNT PAID BY THE BUYER FOR THE DEFECTIVE PRODUCT. IN NO EVENT SHALL SELLER BE LIABLE
FOR ANY OTHER FORM OF DAMAGES, WHETHER DIRECT, INDIRECT, LIQUIDATED, INCIDENTAL,
CONSEQUENTIAL, PUNITIVE,EXEMPLARY OR SPECIAL DAMAGES, INCLUDING BUT NOT LIMITED TO
LOSS OF PROFIT, LOSS OF ANTICIPATED SAVINGS OR REVENUE,LOSS OF INCOME, LOSS OF BUSINESS,
LOSS OF PRODUCTION, LOSS OF OPPORTUNITY OR LOSS OF REPUTATION.
LIMITED CONSUMER WARRANTY
Warranty. For goods sold for personal, family or household purposes, Seller warrants the goods purchased
hereunder (with the exception of membranes, seals, gaskets, elastomer materials, coatings and other “wear parts”
or consumables all of which are not warranted except as otherwise provided in the quotation or sales form) will
be free from defects in material and workmanship for a period of one (1) year from the date of installation or two
(2) years from the product date code, whichever shall occur ŵrst, unless a longer period is provided by law or is
speciŵed in the product documentation (the “:arranty”)

Xylem Inc.
8200 N.Austin Avenue
Morton Grove, Illinois 60053
Phone: [phone]
Fax: [phone]
www.bellgossett.com
Bell & Gossett is a trademark of Xylem Inc. or one of its subsidiaries.
© 2015 Xylem Inc. HS-222G April 2015 Part No. 510837
Except as otherwise required by law, Seller shall, at its option and at no cost to Buyer, either repair or replace any
product which fails to conform with the Warranty provided Buyer gives written notice to Seller of any defects in
material or workmanship within ten (10) days of the date when any defects or non-conformance are ŵrst manifest.
Under either repair or replacement option, Seller shall not be obligated to remove or pay for the removal of
the defective product or install or pay for the installation of the replaced or repaired product and Buyer shall be
responsible for all other costs, including, but not limited to, service costs, shipping fees and expenses. Seller shall
have sole discretion as to the method or means of repair or replacement. Buyer’s failure to comply with Seller’s
repair or replacement directions shall terminate Seller’s obligations under this Warranty and render this Warranty
void. Any parts repaired or replaced under the Warranty are warranted only for the balance of the warranty
period on the parts that were repaired or replaced. The Warranty is conditioned on Buyer giving written notice
to Seller of any defects in material or workmanship of warranted goods within ten (10) days of the date when any
defects are ŵrst manifest.
Seller shall have no warranty obligations to Buyer with respect to any product or parts of a product that have
been: (a) repaired by third parties other than Seller or without Seller’s written approval; (b) subject to misuse,
misapplication, neglect, alteration, accident, or physical damage; (c) used in a manner contrary to Seller’s
instructions for installation, operation and maintenance; (d) damaged from ordinary wear and tear, corrosion,
or chemical attack; (e) damaged due to abnormal conditions, vibration, failure to properly prime, or operation
without Ŷow; (f) damaged due to a defective power supply or improper electrical protection; or (g) damaged
resulting from the use of accessory equipment not sold or approved by Seller. In any case of products not
manufactured by Seller, there is no warranty from Seller; however, Seller will extend to Buyer any warranty
received from Seller’s supplier of such products.
THE FOREGOING WARRANTY IS PROVIDED IN PLACE OF ALL OTHER EXPRESS WARRANTIES.
ALL IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED TO ONE (1) YEAR FROM
THE DATE OF INSTALLATION OR TWO (2) YEARS FROM THE PRODUCT DATE CODE, WHICHEVER
SHALL OCCUR FIRST. EXCEPTAS OTHERWISE REQUIRED BY LAW, BUYER’S EXCLUSIVE REMEDY AND
SELLER’S AGGREGATE LIABILITY FOR BREACH OF ANY OF THE FOREGOING WARRANTIES ARE LIMITED
TO REPAIRING OR REPLACING THE PRODUCT AND SHALL IN ALL CASES BE LIMITED TO THE AMOUNT
PAID BY THE BUYER FOR THE DEFECTIVE PRODUCT. IN NO EVENT SHALL SELLER BE LIABLE FOR ANY
OTHER FORM OF DAMAGES, WHETHER DIRECT, INDIRECT, LIQUIDATED, INCIDENTAL, CONSEQUENTIAL,
PUNITIVE, EXEMPLARY OR SPECIAL DAMAGES, INCLUDING BUT NOT LIMITED TO LOSS OF PROFIT, LOSS
OF ANTICIPATED SAVINGS OR REVENUE, LOSS OF INCOME, LOSS OF BUSINESS, LOSS OF PRODUCTION,
LOSS OF OPPORTUNITY OR LOSS OF REPUTATION.
Some states do not allow limitations on how long an implied warranty lasts, so the above limitation may not apply
to you. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above
exclusions may not apply to you. This warranty gives you speciŵc legal rights, and you may also have other rights
which may vary from state to state.
To make a warranty claim, check ŵrst with the dealer from whom you purchased the product or call
[phone] for the name and location of the nearest dealer providing warranty service.