Section No. 10.1
3535
Series 3535 Back Pressure Valve, Low Pressure, Single Seat Application WellMark’s Back Pressure Valve can be used in any installation where upstream pressure is required to be kept at a preset range. It may also be used as: a pressure relief valve, a custody transfer dump valve to hold a certain back pressure, or as a separator back pressure valve on the gas or liquid side. Upstream pressure is applied to the bottom of the diaphragm through connecting tubing. Spring tension above the diaphragm opposes this pressure, and when the pressure exceeds the pressure setting on the spring, the plug is raised off the seat. By varying the spring tension, the pressure setting can be varied. The typical application for these valves is to hold back pressure on separators, treaters, Lact units, etc.
Features • Simple Design • Self-Contained:There are no pilots or small orifices to plug or freeze. • Easy Access: All internal parts can be removed without taking valve out of line. • Optional Seat: Integral or Removable • Available in 1" and 2" Size • Pressed Steel Topworks • Threaded body, Ductile Iron • Flanged Body, Steel
Dimensional Data
The
7 1/2 Dia. (#10 Topworks) 8 1/2 Dia. (#20 Topworks)
Flow
7 5 /8 9 1/2
2"NPT Globe Valve
6" Dia. (2" ANSI 150) 6 1/2 " Dia. (2"ANSI 300/600)
Flow
19 1/2 Approx.
7 1/2 Dia. (#10 Topworks) 8 1/2 Dia. (#20 Topworks)
1 7/8
111/16
2" Flanged Globe Valve
1 5/8
Size . . . . . . . . . . . . . .1" & 2" Threaded, 2" Grooved, 2" Flanged Working Presure . . . . . . . . . . . . . . . . Dictated by Spring Range Spring Range . . . . . . . . . . . . . . . . . . . . . . . . From 0 to 150 psi Temperature . . . . . . . . . . . . . . . . . . -50˚F to +250˚F Standard (other materials available) Size Topworks . . . . . . . . . . . . . . . . . . . . . . . . . . . . #10 or #20 (CV) Flow Coefficient . . . . . . . . . . . . . . . . 1" = 11 2" = 25 Material Body . . . . . . . . . . . . . . . . . . . 1" & 2" Threaded Ductile Iron 2" Flanged WCB Topworks . . . . . . . . . . . . . . #20 Press Steel, #10 Steel WCB Diaphragm . . . . . . . . . . . . . . . . . . . Nylon Reinforced Nitrile Stem . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 316 SS Packing . . . . . . . . . . . . . . . . . . . . . Cotton Reinforced Nitrile Trim . . . . . . . . . . . . . . . . . . . . . . . . 303 SS Molded Buna-N
19 1/2 Approx.
Specifications
5 1/4
6 1/2
1"NPT Globe Body
2" Grooved Globe Body
Company, L.L.C. • Oklahoma City, Oklahoma • Tel: (405) 672-6660 • Fax: (405) 672-6661 • wellmarkco.com
©2002 The WellMark Company • Litho USA • WM3535-9/02 • All registered trademarks are the property of their respective owners.
1
Section No. 10.1
3535
Series 3535 Back Pressure Valve, Low Pressure, Single Seat Parts List Series 3535 w/#20 Topworks Item
Description BODY, 1"NPT, DUCTILE IRON BODY, 2"NPT, DUCTILE IRON 1 BODY, 2" GROOVED, DUCTILE IRON BODY, 2" ANSI 150RF, STEEL WCB PLUG, 1" VALVES, 303SS MOLDED BUNA-N 2* PLUG, 2" VALVES, 303SS MOLDED BUNA-N 3* GASKET, MOLDED BUNA-N 4 DIA. SUPPORT, ASTM A-108GR.1018 5 WASHER, 304 STAINLESS STL. 6 STEM, ASTM A-276 TY.316 7 FLEX-LOC NUT, STAINLESS STEEL 8 CAP SCREW, ASTM A-307 GR.B 9 O-RING, BUNA-N 10 FLAT HD. SCREW, STAINLESS STEEL 11 LOWER CASE, ASTM A-569 12 GASKET, MOLDED BUNA-N 13 BREATHER, HPE 14 UPPER CASE, ASTM A-569 15* THREAD SEAL, STEEL/BUNA-N 16* PACKING, FLAT, COTTON REIN. NITRILE 17 PACKING ADJ., ASTM B-16 18 SPACER, DELRIN 19* PACKING, COTTON REIN. NITRILE 20 LOCK WASHER, STEEL 21 NY-LOC NUT, ASTM A-307 GR.B 22 DIAPH. PLATE, ASTM A-569 DIAPHRAGM 0-30#, NYLON RENF. NITRILE 23* DIAPH. 30-100#, NYLON RENF. NITRILE UPPER GUIDE, ASTM A-108GR.1213 24 UPPER GUIDE 50-100#, ASTM A-108GR.1213 LOWER GUIDE, ASTM A-366 25 LOWER GUIDE 50-100#, ASTM A-366 SPRING 0-30#, ASTM A-401 26 SPRING 10-80#, ASTM A-401 27 ADJ. SCREW, ASTM A-307 GR.B 28 JAM NUT, ASTM A-307 GR.B 29 SPRING, ASTM A-401, INNER 30 CAP SCREW, ASTM A-307 GR.B 31 HEX NUT, ASTM A-307 GR.B 32 ELBOW, CONN., BRASS 33 CONNECTOR, BRASS 34 TUBING, COPPER 35 STEM GUIDE, DELRIN *Recommended Spare Part
Qty. 1 1 1 1 1 1 1 1 1 1 1 4 1 4 1 1 1 1 1 1 1 1 3 1 1 2 1 1 1 1 1 1 1 1 1 1 1 12 12 1 1 1 1
Determining the Model Number
Part No. 05011-8397 05011-8256 05011-8207 06500-3345 05011-1251 05010-4561 05011-0816 05010-4363 05010-4116 05010-4587 05000-1817 05000-1858 05000-0066 05000-1759 06500-0572 05010-3662 05011-1640 06500-1059 06000-0395 06000-0528 05010-3639 05010-4322 06000-0387 06000-0403 05000-2997 05010-1922 06000-0056 06000-0064 05010-1906 05010-5071 05010-1914 05010-5089 05010-1344 05010-6293 05010-7820 05000-2070 05010-5055 05000-1742 05000-1726 06000-0445 06000-0429 06000-0437 05010-4231
Example given: Standard Model 220-DSG-B-I–Series 3535, 2" Threaded Globe Body, #20 Topworks, Integral Seated Back Pressure Valve.
MODEL 220-DSG-B- I Size 1 • 1" 2 • 2" Topworks 10 • #10 20 • #20
Trim I • Integral R100 • 1" Removable R138 • 1 3/8" Removable R150 • 1 1/2" Removable B • Back Pressure Valve Body DSG • Threaded Globe DFG • Flanged Globe* (Specify Flange Rating)
DGG • Grooved Globe* 27
* Available in 2" Only
28
24 24 26 14
10-80# 26 29
25 21 20 25
Spring & Spring Guide For 50-100# Models Only
13
Model and Part No. Size 1"
2"
The 2
Model No. Ends Connection 120-DSG-B-I 1" NPT 120-DSG-B-I 220-DSG-B-I 220-DSG-B-I 2" NPT 220-DSG-B-I 220-DGG-B-I 220-DGG-B-I 2" GROOVED 220-DGG-B-I 220-DFG-B-I 220-DFG-B-I 2"ANSI 150 RF 220-DFG-B-I
Spring Range 0-30 lbs 10-80 lbs 0-30 lbs 10-80 lbs 50-100 lbs 0-30 lbs 10-80 lbs 50-100 lbs 0-30 lbs 10-80 lbs 50-100 lbs
Cv
Wt.
11
32#
25
38#
25
35#
25
46#
Part No. 03027-0003 03027-0011 03001-0086 03001-0094 03001-0177 03001-0037 03001-0052 03001-0011 03001-0144 03001-0151 03001-0193
15 30 31 23 10 33 34 19 5 32 1
17 22 11 12 18 8 4 3 16 35 6 2 9 7
Company, L.L.C. • Oklahoma City, Oklahoma • Tel: (405) 672-6660 • Fax: (405) 672-6661 • wellmarkco.com ©2002 The WellMark Company • Litho USA • WM3535-9/02 • All registered trademarks are the property of their respective owners.
Section No. 10.1
Series
3535
3535 Back Pressure Valve, Low Pressure, Single Seat Parts List Series 3535 w/#10 Topworks Item
1
2* 3* 4 5 6 7 8 9* 10 11 12 13 14 15* 16 17 18 19* 20 21 22 23* 24 25 26 27 28 29 30 31 32
Description BODY, 1"NPT ANGLE, DUCTILE IRON BODY, 2"NPT , DUCTILE IRON BODY, 2" GROOVED, DUCTILE IRON BODY, 2" ANSI 150RF, STEEL WCB BODY, 2" ANSI 300RF, STEEL WCB BODY, 2" ANSI 600RF, STEEL WCB PLUG, 1" VALVES, 303SS MOLDED BUNA-N PLUG, 2" VALVES, 303SS MOLDED BUNA-N GASKET, MOLDED BUNA-N DIA. SUPPORT, STEEL WCB DIA. SUPPORT, ANSI 300/600 FLG. WASHER, 304 STAINLESS STL. STEM, ASTM A-276 TY.316 FLEX-LOC NUT, STAINLESS STEEL CAP SCREW, ASTM A-307 GR.B O-RING, BUNA-N BREATHER, HPE PIPE PLUG, STEEL TUBING, COPPER ELBOW CONN., BRASS CONNECTOR, BRASS THREAD SEAL, STEEL/BUNA-N TRU-ARC RING, STAINLESS STEEL STEM GUIDE, DELRIN SPACER, DELRIN POLYPAK, MOLYTHANE LOCK WASHER, STEEL NY-LOC NUT, ASTM A-307 GR.B DIAPH. PLATE, ASTM A-569 DIAPHRAGM, NYLON RENF. NITRILE UPPER GUIDE, ASTM A-108GR.1213 LOWER GUIDE, ASTM A-366 SPRING 0-60#, ASTM A-401 SPRING 20-150#, ASTM A-401 ADJ. SCREW, ASTM A-307 GR.B JAM NUT, ASTM A-307 GR.B UPPER CASE, ASTM A-216 GR.WCB CAP SCREW, ASTM A-307 GR.B HEX NUT, ASTM A-307 GR.B SEAL WASHER, STEEL PLATED
Qty. 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4** 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 8 8 1
Part No. 05011-8397 05011-8256 05010-4678 06500-3345 06500-3352 06500-3360 05011-1251 05010-4561 05011-0816 05010-8596 05011-8298 05010-4116 05010-9222 05000-1817 05000-1874 05000-0066 05011-1640 06000-0478 06000-0437 06000-0445 06000-0429 06000-0395 06000-0452 05010-8638 05010-8646 06000-0353 06000-0403 05000-2997 05010-8786 05010-8612 05010-1906 05010-1914 05010-1344 05010-6293 05010-7820 05000-2070 06500-0986 05000-1890 05000-2104 06000-0460
*Recommended Spare Part **8 Req"d For ANSI 300/600 Flanged Valves
27 28
Optional Sealing Washer 24
26
29
21 20 25 15 10 11 23 14 12 19 17 6
Model and Part No. Size 1"
2"
The
Model No. Ends Connection 110-DSG-B-I 1" NPT 110-DSG-B-I 210-DSG-B-I 2" NPT 210-DSG-B-I 210-DGG-B-I 2" GROOVED 210-DGG-B-I 210-DFG-B-I 2"ANSI 150 RF 210-DFG-B-I 210-DFG-B-I 2"ANSI 300 RF 210-DFG-B-I 210-DFG-B-I 2"ANSI 600 RF 210-DFG-B-I
Spring Range 0-60 lbs 20-150 lbs 0-60 lbs 20-150 lbs 0-60 lbs 20-150 lbs 0-60 lbs 20-150 lbs 0-60 lbs 20-150 lbs 0-60 lbs 20-150 lbs
Cv
Wt.
11
40#
25
44#
25
41#
25
60#
25
64#
25
68#
Part No. 03031-0007 03031-0015 03032-0030 03032-0048 03032-0063 03032-0071 03032-0121 03032-0139 03032-0154 03032-0162 03032-0188 03032-0196
32
13
22 30 31 16 18 8 4 3 5 2 9 7
1
Company, L.L.C. • Oklahoma City, Oklahoma • Tel: (405) 672-6660 • Fax: (405) 672-6661 • wellmarkco.com
©2002 The WellMark Company • Litho USA • WM3535-9/02 • All registered trademarks are the property of their respective owners.
3
Section No. 10.1
Series
3535
3535 Back Pressure Valve, Low Pressure, Single Seat Parts List Series 3535 w/Removable Seat & #10 Topworks Item
Description BODY, 2" ANSI 150RF, STEEL WCB 1 BODY, 2" ANSI 300RF, STEEL WCB BODY, 2" ANSI 600RF, STEEL WCB 2 CAP SCREW, ASTM A-307 GR.B DIA. SUPPORT ANSI 150 FLG., WCB 3 DIA. SUPPORT ANSI 300/600, WCB 4* O-RING, BUNA-N 5 WASHER, 304 STAINLESS STL. 6 STEM, ASTM A-276 TY.316 7 FLEX-LOC NUT, STAINLESS STEEL 8* PLUG, 303SS MOLDED BUNA-N 9* O-RING, BUNA-N 10 BREATHER, HPE 11 PIPE PLUG, STEEL 12 TUBING, COPPER 13 ELBOW CONN., BRASS 14 CONNECTOR, BRASS 15* THREAD SEAL, STEEL/BUNA-N 16 TRU-ARC RING, STAINLESS STEEL 17 STEM GUIDE, DELRIN 18 SPACER, DELRIN 19* POLYPAK, MOLYTHANE 20 LOCK WASHER, STEEL 21 NY-LOC NUT, ASTM A-307 GR.B 22 DIAPH. PLATE, ASTM A-569 23* DIAPHRAGM, NYLON RENF. NITRILE 24 UPPER GUIDE, ASTM A-108GR.1213 25 LOWER GUIDE, ASTM A-366 SPRING 0-60#, ASTM A-401 26 SPRING 20-150#, ASTM A-401 27 ADJ. SCREW, ASTM A-307 GR.B 28 JAM NUT, ASTM A-307 GR.B 29 UPPER CASE, ASTM A-216 GR.WCB 30 CAP SCREW, ASTM A-307 GR.B 31 HEX NUT, ASTM A-307 GR.B 32 SEAT, ASTM A-582 TY.303 33* O-RING, BUNA-N 34 SEAL WASHER, STEEL PLATED *Recommended Spare Part **8 Req'd For ANSI 300/600 Flanged Valves
Qty. 1 1 1 4** 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 8 8 1 1 1
Part No. 06500-3204 06500-3212 06500-3220 05000-1874 05010-8596 05011-8298 05000-0371 05010-4116 05012-3181 05000-1817 05012-1458 05000-0066 05011-1640 06000-0478 06000-0437 06000-0445 06000-0429 06000-0395 06000-0452 05010-8638 05010-8646 06000-0353 06000-0403 05000-2997 05010-8786 05010-8612 05010-1906 05010-1914 05010-1344 05010-6293 05010-7820 05000-2070 06500-0986 05000-1890 05000-2104 05011-1657 05000-0322 06000-0460
2"-150 2"-300 2"-600
The 4
Model No. 210-DFG-B-R138 210-DFG-B-R138 210-DFG-B-R138 210-DFG-B-R138 210-DFG-B-R138 210-DFG-B-R138
28
Spring Range 0-60 lbs 20-150 lbs 0-60 lbs 20-150 lbs 0-60 lbs 20-150 lbs
Cv
Wt.
25
61#
25
65#
25
69#
Part No. 03032-0287 03032-0295 03032-0303 03032-0220 03032-0311 03032-0329
34 *OPTIONAL SEALING WASHER
24 26 29
21 20 25 15 10 11 23 19 14 12 17 6 5
Model and Part No. Size/ANSI
27
22 30 16 31 18 2 3 4 8 32
13 33 1
9 7
Company, L.L.C. • Oklahoma City, Oklahoma • Tel: (405) 672-6660 • Fax: (405) 672-6661 • wellmarkco.com ©2002 The WellMark Company • Litho USA • WM3535-9/02 • All registered trademarks are the property of their respective owners.