Spence E-Main Pressure Reducing Valve

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Type E Main Valve Features
Normally Closed
Single Seat
Balanced Metal Diaphrams
Protected Main Spring
Fluid, Gas & Vapor Applications
Accurate Regulation Unaffected by Service Conditions
ANSI/FCI 70-2 Class IV Shutoff
Virtually Frictionless for Long Service Life
Packless Construction
Easy In-Line Maintenance
Wide Variety of Pilots for Many Applications
Minimum Operating 10 psi
Application Data
Pressure Regulating for Steam Distribution
Regulating for Process Control (Temperature or Pressure)
Maintain Back Pressure or Differential Pressure
For use with Self-contained, Pnuematic or Electronic Pilots
Single Point or Multiple Use Applications
Slow Start-up or Shutdown

E-Main Ranges (PSI)
3-20 / 5-50 / 10-100 / 20-150

125# - 4 Bolt
250# - 8 Bolt

 Rated Flow Coefficients (Cv)
 Seat Factor  Regulator Size
3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 4" 5" 6" 8" 10" 12"
Full
Full 75%
Full 50%
Normal
Normal 75%
Normal 50%
1.5
---
---
0.65
---
---
2.8
2.1
1.4
1.5
---
---
5.4
4
2.7
4.8
---
---
8.8
6.6
4.4
7.5
---
---
14.1
10.6
7
10.4
---
---
19.8
14.8
9.9
14.6
---
---
31
23.3
15.5
17.6
---
---
44
33
22
24
18
12
74
56
37
43
33
22
109
82
55
78
59
39
169
127
85
115
87
58
248
186
124
151
114
76
444
333
222
249
187
125
706
530
353
377
283
189
1113
835
557
631
474
316

 
Spence Type E Main Valve
Size E-Face to Face Other Dimensions Approx Wt.
SCR. Ends 125 LB 250 LB A B C D F G Scr. Ends 125 Lb. 250 Lb.
3/8"
1/2"
3/4"
1"
1-1/4"
1-1/2"
2"
2-1/2"
3"
4"
5"
6"
8"
4-3/8"
4-3/8"
4-3/4"
5-3/8"
6-1/2"
7-1/4"
7-1/2"
---
---
---
---
---
---
---
---
---
5-1/2"
6-3/4"
6-7/8"
8-1/2"
9-3/8"
10"
11-7/8"
13-5/8"
15-1/8"
19"
---
---
---
6"
7-1/4"
7-3/8"
9"
10"
10-3/4"
12-1/2"
14-1/2"
16"
20"
2-3/4"
2-3/4"
2-7/8"
3-5/8"
4-1/8"
4-3/8"
5-1/4"
5-3/4"
6-5/8"
7-5/8"
8-1/2"
10"
11-1/2"
5-1/4"
5-1/4"
5-1/2"
6-1/4"
6-1/2"
7-1/8"
7-5/8"
8-3/8"
9-1/4"
11-7/8"
12-1/2"
14-1/8"
17-1/4"
5-7/8"
5-7/8"
6-1/2"
7"
7-7/8"
8-3/4"
9-7/8"
10-7/8"
11-3/4"
14-3/4"
16-7/8"
19-3/4"
22-1/2"
1-1/4"
1-1/4"
1-3/8"
1-1/2"
1-7/8"
2"
2-1/8"
2-3/8"
2-3/4"
3-1/2"
3-1/2"
4"
6-1/4"
5-3/8"
5-3/8"
5-5/8"
5-3/4"
6"
6-1/4"
6-5/8"
6-3/4"
7-1/4"
8"
9"
9-7/8"
10-1/2"
7-3/8"
7-3/8"
7-7/8"
8-7/8"
9-1/8"
9-3/4"
11-1/4"
12-1/8"
14-5/8"
18-1/4"
20-1/8"
22-3/8"
27-3/4"
14
14
18
23
33
43
62
---
---
---
---
---
---
---
---
---
24
36
45
67
82
110
200
280
385
657
---
---
---
27
40
51
72
100
130
235
315
455
735

 

Body Material  Maximum  
PSI F 3/8" 1/2" 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2"
Cast Iron                    
Screwed 250 450              
Flanged 125# 125 450          
Flanged 250# 250 450          
Cast Steel    
Screwed 300 600         Call For Quote    
300 750              
Flanged 150# 150 500          
Flanged 300# 300 600          
300 750          
Flanged 600# 600 600          
600 750          

 

Body Material Maximum  
PSI F 3" 4" 5" 6" 8" 10" 12"
Cast Iron                
Screwed 250 450
Flanged 125# 125 450          
Flanged 250# 250 450          
Cast Steel   Call For Quote
Screwed 300 600
300 750
Flanged 150# 150 500        
Flanged 300# 300 600        
300 750        
Flanged 600# 600 600        
600 750        

 

D Pilot - Cast Iron / Cast Steel - Screwed or Flanged Inlet
D Pilot Pressure Ranges
Aluminum Spring - 3 to 20 psi Orange Spring - 5 to 50 psi Green Spring - 10 to 100 psi Black Spring - 20 to 150 psi

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Int'l Phone: 770-957-9599
Int'l Fax:     770-957-9563
E-Mail: Email Your Request

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