Class 400
Regular & Venturi Patterns

 
AUDCO SUPER-H Pressure Balanced Plus Valves have been developed to reduce the operating torque in plug valves without compromising on in-line maintenance capability. The plug and body seating surfaces, which are lapped and matched* are not exposed to the line fluid while valves arc in open condition; this confines corrosion and erosion to less critical areas. Sealing is further enhanced by specially developed plug sealants charged evenly around the seating surfaces. The plug is impregnated with PTFE based anti-friction agent - 'SUPER LoMu' - which provides greater wear resistance and ensures consistent operating torque.
 

PRESSURE BALANCED PLUG

           SUPER LoMu


In a standard taper plug valve, the lino fluid finds its way into the large end chamber of the plug. The resultant force pushes the plug inio ils taper seal causing taper locking and possibly valve seizure. This rcsullant force persists when the subsequent line pressure remains high or is reduced. To unseat the taper locking and keep the valve operational, frequent sealant injection is required. In pressure balanced plug valve pressure balancing is achieved by providing two holes in the plug connecting the chambers at each end of the plug. The chambers, one fitted with a non¬return valve acts as a balancing mechanism for the plug. The pressure in the large end chamber always equals line pressure and the pressure in

 
 
Plug and Stem of Super-H Pressure Balanced plug valves arc treated with an antifriction agent based on PTFR which we call as "Super LoMu" This provides greater wear resistance and ensures low consistent operating torque
 
FIRE SAFE 
Super-H Pressure Balanced Plug valves are designed lo meet fire lest standards. The features incorporated in ihe valve make the valves seal and operate effectively even after being subjected 10 fire of varying temperatures and duration resembling fire accidents
 
STANDERDS  
Valve Design API 61D
Face to Face ASME/ANSI BI6.10
dimensions & drilling and BS 2080
Inspection & Testing API 6D and BS 6755
Part I
Fire tests API 6FA
 
OPERATION AND MAINTENANCE
 
Ihe small end chamber is always equal to or greater than the line pressure, minimising ihe resultant force. Pressure balancing eliminates out of balance forces and consequent taper locking. The Figure shows clearly how a balanced position is reached when line pressure is allowed to equalise ihe pressure acling on each end of the plug


 
 
 
    DIMENSIONS (Inches / mm)                                                                                                Class 150
 
Valve
Size
Pattern Face
to
Face
Flange CL to
Bottom
CL to
H/W Face
Wrench Wrench
Length/
HW Dia
No.of
Tapping
Per Flange
Tapping Detail
OD Thikness Gear Unit
    A B C D E   F    
2 S 7.00 6.00 0.62 4.72 - B4 19.45 - -
50 - 178 152 15.70 120 - - 495 -  
3 S 8.00 7.50 0.75 6.50 - B5S 26.93 2 5/8 -11UNC
80 - 203 191 19.10 165 - - 684 - -
4 S 9.00 9.00 0.94 7.28 - B5S 26.93 2 5/8 -11UNC
100 - 229 229 23.90 185 - - 684 - 19mm deep
6 S 10.50 11.00 1.00 6.69 12.09 27M3 22.76 2 3/4 -10UNC
150 - 267 279 25.40 170 307 - 578 - 22mm deep
8 S 11.50 13.50 1.12 7.68 12.09 27M3 22.76 2 3/2mm deep
200 - 292 343 28.40 195 307 - 578 - 22mm deep
10 S 13.00 16.00 1.19 10.04 12.09 27M5 22.76 2 7/8 -9UNC
250 - 330 406 30.20 255 307 - 578 - 22mm deep
12 S 14.00 19.00 1.25 11.02 12.09 27M5 22.76 2 7/8 -9UNC
300 - 356 483 31.80 280 307 - 578 - 22mm deep
14 V 27.00 21.00 1.38 14.76 17.20 3H 30.98 - -
350 - 686 533 35.10 375 437 - 787 - -
16 V 30.00 23.50 1.44 13.98 13.31 G400 22.76 - -
400 - 762 597 36.60 355 338 - 578 - -
18 V 34.00 25.00 1.56 15.16 16.57 G400 27.56 - -
450 - 864 635 39.60 385 421 - 700 - -
20 V 36.00 27.50 1.69 18.11 17.20 5B 30.98 - -
500 - 914 699 42.90 460 437 - 787 - -
24 V 42.00 32.00 1.88 18.70 20.71 3MS 30.98 - -
600 - 1067 813 47.80 475 526 - 787 - -
26 V 45.00 34.25 2.70 23.60 22.80 9AS 25.60 - -
650 - 1143 870 68.40 600 580.00 - 650 - -
28 V 51.00 36.50 2.81 26.00 22.80 9AS 25.60 - -
700 - 1295 927 71.40 666 580.00 - 650 - -
30 V 51.00 38.75 2.94 26.0 22.80 9AS 25.60 - -
750 - 1295 986 75 660 580 - 650 - -
 
 
    DIMENSIONS (Inches / mm)                                                                                                Class 150
 
Valve
Size
Pattern Face
to
Face
Flange CL to
Bottom
CL to
H/W Face
Wrench Wrench
Length/
HW Dia
No.of
Tapping
Per Flange
Tapping Detail
OD Thikness Gear Unit
    A B C D E   F    
2 S 8.50 6.50 0.88 4.72 - B4 19.45 - -
50 - 216 165 22.40 120 - - 495 - -
3 S 11.12 8.25 1.12 5.71 - B5S 26.93 - -
80 - 282 210 28.40 145 - - 684 - -
4 S 12.00 10.00 1.25 6.69 - BSL 36.30 - -
100 - 305 254 31.80 170 - - 922 - -
6 V 15.88 12.50 1.44 6.89 12.09 27M3 22.76 - -
150 - 403 318 36.60 175 307 - 578 - -
8 V 16.50 15.00 1.62 7.87 12.09 27M3 22.76 - -
200 - 419 381 41.10 200 307 - 578 - -
10 V 18.00 17.50 1.88 11.61 12.09 27HI 22.76 - -
250 - 457 445 47.80 295 307 - 578 - -
12 V 19.75 20.50 2.00 15.55 17.20 G400 27.56 2 1.1/8-8 UN
300 - 502 521 50.80 395 437 - 787 - 38MM DEEP
14 V 30.00 23.00 2.12 14.76 17.20 5B 30.98 - -
350 - 762 584 53.80 375 437 - 787 - -
16 V 33.00 25.50 2.25 15.20 21.54 5B 30.98 - -
400 - 838 648 57.2 385 547 - 787 - -
18 V 36.00 28.00 2.38 15.74 21.54 5BS 30.98 - -
450 - 914 711 60.50 400 547 - 787 - -
20 V 39.00 30.50 2.50 18.90 21.54 5BS 30.98 - -
500 - 991 775 63.50 480 547 - 787 - -
24 V 45 36 275 20.70 21.54 5BS 3098 - -
600 - 1143 914 69.90 525 547 - 787 - -
 
MATERIAL SPECIFICATION                                               
 
 
STANDERDS     TEST PRESSURE

      CATALOGUE NUMBER

A familiarity with our catalogue number is not necessary'when specifying or ordering our valves. If full description of the valve could be provided we will translate this into a catalogue number formulated as per the following system