Normas Texaco GEMS J-6D11 Steam Traps

DEC 95 STEAM TRAPS GEMS J-6D11

PAGE 1 OF 16©TEXACO CENTRAL ENGINEERING & PURCHASING DEPARTMENT

TABLE OF CONTENTSPAGE

1. SCOPE .............................................................. 2

2. REFERENCES ......................................................... 2

2.1 Purchaser Specification s ..................................... 22.2 Purchaser Drawing s ........................................... 22.3 Industry Codes and Standard s ................................. 2

3. GENERAL ............................................................ 2

3.1 Genera l ...................................................... 23.2 Basic Type s .................................................. 23.3 Bid s ......................................................... 3

4. SELECTION AND LIMITATIO N ........................................... 3

4.1 Pressure s .................................................... 34.2 Condensate Loa d .............................................. 34.3 Steam Header s ................................................ 34.4 Steam Tracer s ................................................ 44.5 Process Steam Heater s ........................................ 44.6 Tank Coils and Radiator s ..................................... 44.7 Turbine Drain s ............................................... 44.8 Mechanical Traps (Inverted Bucket or Float Thermostatic ) ..... 44.9 Thermostatic Traps (Bimetallic, Bellows, or Diaphragm ) ....... 44.10 Thermodynamic Traps (Disc, Piston ) ........................... 44.11 Material s .................................................... 54.12 Special Application s ......................................... 5

5. LOCATION ........................................................... 5

6. PIPIN G ............................................................. 5

7. TAGGING ............................................................ 5

TABLES

1 Condensate Rate for Steam Headers2 Condensate Rate for Steam Tracers3 Steam Headers at 0-50 PSIG and 450 °F Maximum4 Steam Headers at 51-150 PSIG and 450 °F Maximum5 Steam Headers at 151-250 PSIG and 450 °F Maximum6 Steam Headers at 151-400 PSIG and 451-75 0°F Maximum7 Steam Headers at 401-600 PSIG and 750 °F Maximum8 Steam Headers at 601-900 PSIG and 800 °F Maximum9 Steam Headers at 901-1500 PSIG and 90 0°F Maxi mum10 Steam Tracers at 0-250 PSIG and 500 °F Maximum

ATTACHMENTS

J-6D11S 1 Data Sheet



1. SCOPE

1. This specification defines minimum requirements for selection oftype and manufacturer of steam traps.

2. This specification does not define where steam traps are needed.

2. REFERENCES

2.1 Purchase r Specifications

This specification contains references to the following Purchaserspecifications:

GEMSGC, “General Conditions - General Equipment and MaterialSpecifications”.

2.2 Purchase r Drawings

This specification contains references to the following Purchaserdrawings:

1. 9S-7690, “Steam Tracer Piping Details”.

2. 9S-8264, “Steam Trap Piping Details”.

2. 3 Industry Codes and Standards

This specification contains references to the following industry codesand standards:

None.

3. GENERAL

3.1 General

Steam traps may be manufactured by any of the following:

1. Armstrong Machine Works.

2. Gestra-KSB.

3. Plenty Products, Inc. (Velan).

4. Spirax-Sarco , Ltd.

5. TLV.

6. Yarwa y Corp.

3.2 Definitions

1. Steam Traps - Automatic valve devices used to remove condensate andrelieve air from steam lines and equipment.

2. Mechanical Steam Traps - Operate by responding to difference indensity between steam and condensate. Condensate is dischargedimmediately below steam saturation temperature. Examples: invertedbucket, float thermostatic.

3. Thermostatic Steam Traps - Operate by responding to difference intemperature between steam and condensate. Cooled condensate isdischarged at a set temperature below steam saturation temperature.Examples: bellows, bimetallic, diaphragm.



4. Thermodynamic Steam Traps - Operate by responding to difference inkinetic energy (velocity) between steam and condensate. Condensateis discharged immediately below steam saturation temperature.Examples: disc, piston.

3.3 Bids

1. Competitive prices shall be developed for each project frommanufacturers listed in tables for particular service involved.

2. Data sheets shall be completed and sent to approved bidders.

3. Steam trap manufacturer and model number shall be standardized foreach service encountered (e.g., steam tracer - 40 psig or steamheader - 600 psi) and covered with a blanket purchase order for theentire project.

4. SELECTION AND LIMITATION

4.1 Pressures

1. Maximum inlet pressures shall be equal to design pressure of steamline or equipment being trapped.

2. Minimum inlet pressures shall be equal to minimum pressure of steamline or equipment being trapped.

3. Maximum outlet pressure shall be equal to back pressure on trapresulting from design pressure of condensate return line plusstatic head of condensate.

4. Minimum outlet pressure shall be equal to atmospheric pressure(under premise that traps normally discharging to a condensatecollection system may also be required to temporarily discharge toatmosphere).

5. Maximum differential pressure across traps is difference betweenmaximum inlet pressure and minimum outlet pressure.

6. Minimum differential pressure across traps is difference betweenminimum inlet pressure and maximum outlet pressure.

4.2 Condensate Load

1. Normal condensate load is quantity of condensate produced byconduction, radiation, and convection losses that must be removedfrom steam system operating under normal design conditions.

2. Normal loads shall be determined using Tables 1 and 2 and actuallength of steam header or tracer being trapped.

3. Maximum condensate load shall be equal to normal condensate loadmultiplied by appropriate load safety factor.

4. Applications that require steam system to be blown down prior totrap operation (i.e., headers, turbines, process tracing, and tankcoils) do not require a load safety factor.

5. Thermodynamic, thermostatic, and mechanical traps in applicationsthat do not require steam system to be blown down prior to trapoperation (i.e., winterproofing headers and tracers used inconjunction with automatic ambient sensing control valves) shallhave a load safety factor of 2.0.

4.3 Steam Headers

Suitable steam traps for steam headers are listed in Tables 3 through 9.



4.4 Steam Tracers

Suitable steam traps for steam tracers are listed in Table 10.

4.5 Process Steam Heaters

1. High capacity steam traps for process steam heaters are notincluded in tables.

2. Float thermostatic (FT) traps are most often the best type for suchapplications.

3. Armstrong, Gestra, Spirax-Sarco, or TLV shall be consulted for FTtraps.

4. Some inverted bucket traps (shown as being oversized in Tables 3-10) may be suitable for lighter duty steam heaters.

4.6 Tank Coils and Radiators

1. If possible, traps for tank coil and radiator applications in whichsensible heat of condensate can be used as a heating medium shallbe selected from thermostatic traps listed in Table 10.

2. If a trap suitable for higher pressure is required, a thermostatictrap shall be selected from Tables 6 through 9.

4.7 Turbine Drains

1. Steam traps for turbine drain applications shall be selected fromthermodynamic or mechanical traps listed in Table 10.

2. If a trap suitable for higher pressure is required, a thermodynamicor mechanical trap shall be selected from those listed in Tables 6through 9.

4.8 Mechanical Traps (Inverted Bucket or Float Thermostatic)

1. Except for steam tracing application, external strainers shall beused with mechanical traps. Strainer mesh shall be properly sizedfor orifice selected.

2. Trap orifice shall be suitable for maximum anticipated pressuredifferential.

3. Trap orifice shall be smallest size capable of passing maximumcondensate load.

4. Use of inverted bucket traps not designed to handle superheat in superheated steam service shall be avoided.

4.9 Thermostatic Traps (Bimetallic, Bellows, or Diaphragm)

1. External strainers shall be used with thermostatic traps.

2. If condensate back-up caused by subcooling action of thermostatictraps is unacceptable, an alternate type of trap shall be used.

3. Thermostatic traps shall not be used on turbine drains.

4. Diaphragm or bellows traps shall be avoided in superheated steamservice.

4.10 Thermodynamic Traps (Disc, Piston)

1. External strainers shall be used with thermodynamic traps.

2. Capacity of traps shall be smallest that is capable of passingmaximum condensate load.



4.11 Materials

Traps shall not contain bronze or copper bearing parts if quality ofsteam or atmosphere is harmful to such materials.

4.12 Special Applications

Steam traps for special applications shall be subject to Purchaserapproval.

5. LOCATION

1. Steam traps shall be located below condensate level of equipmentthat they are to drain.

2. Steam traps shall be located at grade or on an existing platform. This will provide accessibility for maintenance.

3. Traps shall be located near a column. This will provide support andoptimize plot space.

4. As many traps as are practical shall be grouped at a common trapstation.

6. PIPING

1. Traps and associated piping shall be capable of being drainedduring periods of non operation without dismantling piping.

2. Shop fabricated steam trap manifolds shall be considered, if moreeconomical.

3. Piping details for steam traps shall conform to Drawing 9S-8264.

7. TAGGING

1. Steam traps shall be tagged with non-corrosive identification tags.

2. Tag numbers shall be shown on flowsheets where traps are indicated.

3. Tracer traps shall be tagged in accordance with details of Drawing9S-7690.



STEAM TRAP ABBREVIATIONS

TYPE

MECH - MechanicalIB - Inverted BucketFT - Float Thermostatic

TD - ThermodynamicDISC - DiscDT - Disc with Thermostatic Air VentPSTN - Piston

TS - ThermostaticBIM - BimetalBEL - BellowsDIA - Diaphragm

BODY MATERIAL

CI - Cast IronSS - Stainless SteelFS - Forged SteelFABS - Fabricated SteelCS - Cast Steel

END CONNECTION TYPE

THRD - ThreadedSW - Socket WeldRF - Raised Face Flange

END CONNECTION ORIENTATION (INLET-OUTLET)

S-S : Side-SideB-T : Bottom-TopT-B : Top-Bottom

Var : Variable



TABLE 1

CONDENSATE RATE FOR STEAM HEADERS

CONDENSATE RATE (LB/HR-100 FT)

PIPE STEAM PRESSURE (PSIG)

SIZE(NPS) 10 100 200 300 400 600 1000

2

3

4

6

8

10

12

14

16

18

20

24

5

8

10

15

20

25

30

33

38

43

48

57

10

15

19

29

38

47

56

62

70

79

88

106

13

20

26

38

50

62

74

81

93

105

116

140

16

24

31

46

60

75

89

98

112

126

140

168

19

28

36

53

69

87

103

113

129

145

161

194

24

35

45

66

87

108

128

141

161

181

202

242

33

49

63

93

121

151

179

197

225

253

280

337



TABLE 2

CONDENSATE RATE FOR STEAM TRACERS

STEAM CONDENSATE RATEPRESSURE (LB/HR-FT)

TRACER RANGESIZE (PSIG) BARE WITH CEMENT

1/4” O.D. 0-50 0.03 0.10Tubing 51-100 0.04 0.13

101-150 0.05 0.15151-250 0.06 0.20

3/8” O.D. 0-50 0.04 0.13Tubing 51-100 0.05 0.15

101-150 0.06 0.18151-250 0.07 0.20

1/2” O.D. 0-50 0.08 0.17Tubing 51-100 0.10 0.22

101-150 0.11 0.24151-250 0.12 0.28

NPS 1/2 & 3/4 0-50 0.10 0.20Pipe 51-100 0.12 0.25

101-150 0.14 0.28151-250 0.16 0.33



TABLE 3STEAM HEADERS AT 0-50 PSIG AND 450°F MAXIMUM

EndConn Replaceable

Orient. Trap Orifice Capacity orModel Body (Inlet- Type Size Size (3) Repairable

Mfr No. Type Mat’l Outlet) Conn (In.) (In.) (Lb/Hr) Line?

Armstrong 800 MECH-IB CI S-S THRD 3/4 #38 240 Yes

811 MECH-IB CI S-S THRD 3/4 5/64 160 Yes

X 812 MECH-IB CI S-S THRD 3/4 7/64 600 Yes


X 814 MECH-IB CI S-S THRD 1 5/32 800 Yes

1811 MECH-IB SS S-S THRD 3/4 5/64 160 No

211 MECH-IB CI B-T RF 3/4 5/64 160 No

X 212 MECH-IB CI B-T RF 3/4 7/64 600 No


X 214 MECH-IB CI B-T RF 1 5/32 800 No


X 216 MECH-IB CI B-T RF 1 1/2 7/32 1900 No

1010 MECH-IB SS B-T THRD 3/4 #38 220 No

1011 MECH-IB SS B-T THRD 3/4 5/64 160 No

2011/ MECH-IB SS Var THRD 3/4 5/64 210 Yes 2011TTS

Gestra BK-15 (5) TS-BIM FS S-S THRD 3/4 - 600 Yes

(2, 5) MK-55/3N TS-DIA FS S-S THRD 3/4 - 280 Yes

Plenty R300 (5) TS-BIM SS Var THRD 3/4 1/4 550 No

TS250 (5) TS-BIM FS Var THRD 3/4 3/8 850 Yes

Sarco HM34 MECH-IB CS S-S THRD 3/4 2/32 130 Yes

212 (1) MECH-IB CI B-T THRD 3/4 3/32 380 No

SIB30/6 MECH-IB SS S-S THRD 3/4 3/32 225 No

SM21 (5) TS-BIM FS S-S THRD 3/4 - 120 Yes

BPM21L (5) TS-DIA FS S-S THRD 1/2 - 450 Yes

UBP30 (5) TS-DIA SS Var THRD 3/4 - 390 Yes

SBP30LC (5) TS-DIA SS S-S THRD 3/4 - 370 No

TLV L21S (5) TS-DIA FS S-S THRD 3/4 0.1875 800 Yes

SS3N10 MECH-FT SS S-S THRD 3/4 0.074 230 No

J3N4 (2)(4) MECH-FT CI S-S THRD 3/4 0.134 440 Yes

Yarway 790 MECH-IB SS S-S THRD 3/4 5/64 240 Yes

751-5 (5) TS-BEL FS S-S THRD 3/4 - 250 Yes


Notes:

1. Trap is rated to only 410°F.

2. Trap not recommended for superheated service.

3. Capacities shown are based on differential pressure of 25 psig.


5. This trap not recommended for turbine case drain applications.

(X = Trap oversized - not recommended for distribution headers but may be appropriate for headeroff boiler to ensure dry steam to rest of plant.)



TABLE 4STEAM HEADERS AT 51-150 PSIG AND 450 °°F MAXIMUM

EndConn Replaceable

Orient. Trap Orifice orModel Body (Inlet- Type Size Size Capacity (2) Repairable


Armstrong 800 MECH-IB CI S-S THRD 3/4 #38 550 Yes

811 MECH-IB CI S-S THRD 3/4 5/64 360 Yes





211 MECH-IB CI B-T RF 3/4 5/64 360 No







2010 MECH-IB SS Var THRD 3/4 #38R60 110 Yes




TS250 (4) TS-BIM FS Var RF 3/4 3/8 1500 Yes









J3N12 (3) MECH-FT CI S-S THRD 3/4 0.091 430 Yes




Notes:




(X = Trap oversized - not recommended for distribution headers but may be appropriatefor header off boiler to ensure dry steam to rest of plant.)




EndConn Replaceable



Armstrong 811 MECH-IB CI S-S THRD 3/4 5/64 430 Yes





211 MECH-IB CI B-T RF 3/4 5/64 430 No










TS250 (4) TS-BIM FS Var RF 3/4 3/8 1900 Yes









J3N20 (3) MECH-FT CI S-S THRD 3/4 0.067 285 Yes




Notes:

1. Trap is rated to only 410 °F.


3. Trap is rated to only 428 °F.





TABLE 6STEAM HEADERS AT 151-400 PSIG AND 451-750 °°F MAXIMUM

EndConn Replaceable



Armstrong 310 MECH-IB FS B-T RF 3/4 5/64 430 No

X 312 MECH-IB FS B-T RF 3/4 7/64 1000 No


X 314 MECH-IB FS B-T RF 1 5/32 2300 No


X 316 MECH-IB FS B-T RF 1 1/2 7/32 5200 No




Gestra X BK-15 (1)(7) TS-BIM FS S-S SW 3/4 - 1500 Yes

BK-16 (7) TS-BIM FS S-S SW 3/4 - 600 Yes

Plenty TS250 (6)(7) TS-BIM FS Var SW 3/4 3/8 1900 Yes

R300 (4)(7) TS-BIM SS Var THRD 3/4 1/4 1400 No

Sarco HM34 (1) MECH-IB CS S-S SW 3/4 2/32 270 Yes


SM21 (2)(7) TS-BIM FS S-S SW 3/4 - 340 Yes




TLV L32S (7)(8) TS-DIA FS S-S THRD 3/4 0.125 900 Yes

SS3N21 (3) MECH-FT SS S-S THRD 3/4 0.059 410 No

Yarway 790 MECH-IB SS S-S SW 3/4 5/64 580 Yes

X HP45 (7) TIS-BIM FS S-S SW 3/4 - 1700 Yes

751-HP (7) TS-BEL FS S-S SW 3/4 - 600 Yes

761-HP (7) TS-BEL FS S-S SW 3/4 - 600 Yes

Notes:

1. Trap is only rated for 305 psig at 750°F.

2. Trap is only rated for 250 psig at 650 °F.

3. Trap is only rated for 300 psig at 668 °F.

4. Trap is only rated for 300 psig.


6. Trap use restricted to 250 psig and lower pressure systems.


8. Trap is only rated to 662 °F.





EndConn Replaceable



Armstrong 401-SH (4) MECH-IB FABS B-T SW 3/4 5/64 480 No







Gestra BK-27 (2) TS-BIM FS S-S SW 3/4 - 900 Yes

Plenty TSF485 (2)(3) TS-BIM FS Var SW 3/4 1/4 1400 Yes

Sarco 621 MECH-IB FS B-T RF 3/4 7/64 1700 No

TM600N (2)(3) TS-BEL CS S-S SW 3/4 - 1600 Yes

SIB45/5 MECH-IB SS S-S SW 3/4 5/64 425 No

SM45 (2) TS-BIM CS S-S SW 1 1/2 - 700 Yes

TLV SH5NL65 MECH-FT FS S-S SW 3/4 0.055 420 Yes

SHF5NL65 MECH-FT FS S-S RF 3/4 0.055 420 Yes

Yarway X HP45 (2) TS-BIM FS S-S SW 3/4 - 2300 Yes

Notes:



3. Trap is only rated to 650 °F.

4. This trap is designed for superheat.





EndConn Replaceable



Armstrong 401-SH (4) MECH-IB FABS B-T SW 3/4 5/64 480 No

X 411 (1) MECH-IB FS B-T RF 3/4 5/64 520 No




Gestra BK-28 (3) TS-BIM FS S-S SW 3/4 - 1000 Yes

Plenty N900 (3) TS-BIM FS Var SW 3/4 1/4 1600 Yes

Sarco X 921 MECH-IB FS B-T RF 3/4 1/8 1800 No

TLV SH5NL65 MECH-FT FS S-S SW 3/4 0.055 400 Yes

SHF5NL65 MECH-FT FS S-S RF 3/4 0.055 400 Yes

Yarway HP80 (3) TS-BIM FS S-S SW 3/4 - 900 Yes

Notes:

1. Refer to manufacturer's pressure-temperature limitations.








EndConn Replaceable



Armstrong 501-SH (4)(7) MECH-IB SS B-T SW 3/4 5/64 630 No

X 5133G-FW MECH-IB FS B-T RF 1 7/64 1900 No

X 5155G-FW MECH-IB FS B-T RF 1 1/8 2800 No

Gestra BK-29 (3) TS-BIM FS S-S SW 1 - 900 Yes

Plenty N1500 (3)(4) TS-BIM FS Var SW 1 1/4 1800 Yes

TLV SH5NH80 (5)(6) MECH-FT FS S-S SW 3/4 0.047 400 Yes

SHF5NH80 (5)(6) MECH-FT FS S-S RF 3/4 0.047 400 Yes

SH6NH100 (6) MECH-FT FS S-S SW 3/4 0.063 600 Yes

SHF6NH100 (6) MECH-FT FS S-S RF 3/4 0.063 600 Yes

Yarway HP100 (1)(3) TS-BIM FS S-S SW 1 - 930 Yes

HP130 (3) TS-BIM FS S-S SW 1 - 800 Yes

Notes:

1. This trap is only rated for 1430 psi.



4. Trap rated to 850 °F maximum.

5. This trap is only rated to 1150 psig.

6. This trap is only rated to 800 °F.





TABLE 10STEAM TRACERS AT 0-250 PSIG AND 500 °°F MAXIMUM

EndConn (6) Replaceable


Mfr No. Type Mat’l Outlet) Conn (In.) (In.) 25 135 200 Line?

Armstrong CD-41 TD-DISC CS S-S THRD 1/2 - 310 540 690 No

1010 (1) MECH-IB SS B-T THRD 1/2 #38 220 540 - No

1011 MECH-IB SS B-T THRD 1/2 5/64 160 380 450 No

1810 (2) MECH-IB SS S-S THRD 1/2 #38R60 45 110 - No

1811 MECH-IB SS S-S THRD 1/2 5/64 160 380 450 No

2010 (2) MECH-IB SS Var THRD 1/2 #38R60 45 110 - Yes

2011/ MECH-IB SS Var THRD 1/2 5/64 210 490 650 Yes 2011TTS

Gestra MK-55/3N (3)(4) TS-DIA FS S-S THRD 1/2 - 280 700 880 Yes

MK-25/5N (3)(4) TS-DIA SS T-B THRD 1/2 - 280 700 880 No

Plenty TS250 (4) TS-BIM FS Var THRD 1/2 3/8 850 1500 1900 Yes

R300 (4) TS-BIM SS Var THRD 1/2 1/4 550 1000 1400 No

Sarco BPM21L (4) TS-DIA FS S-S THRD 1/2 - 450 900 1050 Yes

BPT21LC (4) TS-DIA FS S-S THRD 1/2 - 375 800 950 Yes

TSS300 (4)(5) TS-BEL SS T-B THRD 1/2 - 190 425 500 No

MST18 (4) TS-DIA SS T-B THRD 1/2 - 260 590 790 No

SBP30LC (4) TS-DIA SS S-S THRD 1/2 - 350 725 900 No

UBP30 (4) TS-DIA SS Var THRD 1/2 - 350 725 900 Yes

SIB30/4 MECH-IB SS S-S THRD 1/2 2/32 50 235 275 No

SSM21 (4) TS-BIM SS T-B THRD 1/2 - 200 470 530 No

UTD52L TD-DISC SS Var THRD 1/2 - 260 420 500 Yes

TD52L TD-DISC SS SS THRD 1/2 - 210 420 610 Yes

TLV FP32 TD-DT SS Var THRD 1/2 2@ 0.106 275 580 700 Yes

LV21 (4) TS-DIA SS S-S THRD 1/2 0.125 440 770 850 Yes

L21S (4) TS-DIA FS S-S THRD 1/2 0.1875 800 1400 1550 Yes

A46R TD-DT FS S-S THRD 1/2 0.157 410 620 700 Yes

P46 TD-DT SS S-S THRD 1/2 2@ 0.106 340 660 830 No

SS3V21 MECH-FT SS S-S THRD 1/2 0.059 150 290 330 No

LEX3N (4) TS-BIM FS S-S THRD 1/2 0.125 120 280 410 Yes

Yarway 790 MECH-IB FS S-S THRD 1/2 5/64 240 460 580 Yes

29 TD-DISC SS S-S THRD 1/2 - 400 740 900 No

PB-5 (4) TS-BEL SS S-S THRD 1/2 - 250 500 625

PB-40 (4) TS-BEL SS S-S THRD 1/2 - 250 500 625

129Y TD-DISC SS S-S THRD 1/2 - 500 850 1000

711 TD-DISC FS S-S THRD 1/2 - 200 375 475

Notes:

1. This trap is rated to only 150 psig.

2. This trap is rated to only 200 psig.

3. This trap is not recommended for superheated services.


5. Capacity shown is for discharge of condensate at saturated steam temperature. Ifdischarge at 190 °F, use 295/650/800.

6. Check manufacturer's literature for other size availability.

Normas Texaco GEMS J-6D11 Steam Traps

Documents

Transcript of Normas Texaco GEMS J-6D11 Steam Traps