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Home > Products > Control > Control Valve > China Good Price Grooved Wafer Butterfly Valve Bfv N FM UL

China Good Price Grooved Wafer Butterfly Valve Bfv N FM UL

Basic Info

Model No.:  BFV N

Product Description

Model NO.: BFV N Connection Form: Double-Clip Type Seal Form: Auto Sealed Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa) Material of Seal Surface: Soft Sealed Application: Industrial Usage, Water Industrial Usage, Household Usage Working Pressure: 175 Psi,250 Psi or 300 Psi OEM Acceptable: Yes Body Material: Dutile Iron Seat Material: Grade EPDM E Rubber Transport Package: as Customer Require Origin: China Driving Mode: Manual Structure: Centre Sealing Valve Stem: Normal Working Temperature: Normal Temperature (-40°C8 Inch (DN65 to DN200), 10 Inch (DN250) China Good Price Grooved Wafer Butterfly Valve BFV N FM UL

Model BFV-N Butterfly Valve
Wafer Style
General
Description
 
The TYCO Model BFV-N Wafer Style Butterfly Valves (Ref. Figure 1) are indi-cating type valves designed for use in fire protection systems where a visual indication is required as to whether the valve is open or closed. They are used, for example, as system, sectional, and pump water Control valves. They are suitable for installation between ANSI Class 125 or 150 flanges without the need for flange gaskets.
 
For applications requiring supervision of the open position of the valve, the Gear Operators for the Model BFV-N Butterfly Valves are provided with two sets of factory installed internal switches each having SPDT contacts. The supervisory switches transfer their electrical contacts when there is move-ment from the valve's normal open posi-tion during the first two revolutions of the handwheel.
 
NOTICE
 
The TYCO Model BFV-N Wafer Style Butterfly Valves described herein must be installed and maintained in compli-ance with this document, as well as with the applicable standards of the National Fire Protection Association, in addition to the standards of any Other authori-ties having jurisdiction. Failure to do so may impair the performance of these devices.
 
The owner is responsible for maintaining their fire protection system and devices in proper operating condition. Con-tact the installing contractor or product manufacturer with any questions.
Technical     Data
 
Model       BFV-N
 
Sizes: ANSI Inches (DN)
 
2 (DN50), 2-1/2 (DN65), 3 (DN80),
4 (DN100), 5 (DN125), 6 (DN150),
 8 (DN200), 10 (DN250), 12 (DN300)
 
Approvals
 
UL and C-UL Listed
FM Approved
California State Fire Marshall under Listing No. 7770-1670:101
 
Maximum Working Pressure
250 psi (17,2) bar
 
Materials of Construction:
 Body
Ductile iron conforming to ASTM A536
 Disc
Ductile iron conforming to ASTM A395, Nickel Plated
 Seat Material
Grade EPDM "E" rubber conforming to ASTM D2000
 Upper Stem
Type 416 Stainless Steel conforming to ASTM 582
 Operator
Gear operator with iron housing


Friction Loss
 
The approximate friction loss, based on the Hazen Williams formula and expressed in equivalent length of pipe with C= 120, is as follows. Unless oth-erwise indicated, the data is based on friction loss information collected at a typical flow rate of 15 feet per second.
 4.4 feet of 2 inch Sch. 40 pipe for the 2 inch valve.
 6.2 feet of 2-1/2 inch Sch. 40 pipe for the 2-1/2 inch valve.
 7.6 feet of 3 inch Sch. 40 pipe for the 3 inch valve.
 9.2 feet of 4 inch Sch. 40 pipe for the 4 inch valve.
 9.0 feet* of 5 inch Sch. 40 pipe for the 5 inch valve.
 8.2 feet of 6 inch Sch. 40 pipe for the 6 inch valve.
 12.7 feet* of 8 inch Sch. 30 pipe for the 8 inch valve.
 20.1 feet* of 10 inch Sch. 30 pipe for the 10 inch valve.
 22.3 feet* of 12 Inch Sch. 30 pipe for the 12 inch valve.
 
*NFPA 13

 
Nominal       Nominal Installation Dimensions        
Valve         Inches (mm)         Weight
Sizes                     Lbs.
Inches A B C D E F G H J K (kg)
(DN)  
                     
                       
2 2.53 1.68 12.62 2.88 6.48 6.00 5.80 2.12 1.38 5/8 21
(50) (64,0) (43,0) (320,5) (73,0) (164,6) (152,4) (147,3) (53,8) (35,1) (15,9) (10,0)
                       
2-1/2 2.90 1.81 13.51 3.25 6.98 6.00 5.80 2.12 2.00 5/8 24
(65) (74,0) (46,0) (343,1) (83,0) (177,3) (152,4) (147,3) (53,8) (50,8) (15,9) (11,0)
                       
3 3.17 1.81 13,88 3.38 7.22 6.00 5.80 2.12 2.55 5/8 24
(80) (81,0) (46,0) (352,6) (86,0) (183,4) (152,4) (147,3) (53,8) (64,8) (15,9) (11,0)
                       
4 4.17 2.06 15.24 4.00 7.98 6.00 5.80 2.12 2.58 5/8 27
(100) (106,0) (52,0) (387,0) (160,3) (202,7) (152,4) (147,3) (53,8) (65,5) (15,9) (12,0)
                       
5 5.17 2.19 16.49 4.75 8.48 6.00 7.80 2.12 4.64 3/4 31
(125) (131,0) (56,0) (418,8) (121,0) (215,4) (152,4) (198,1) (53,8) (117,9) (19,1) (14,1)
                       
6 6.17 2.19 17.65 5.25 9.10 6.00 7.80 2.12 5.75 3/4 34
(150) (157,0) (56,0) (448,3) (133,0) (231,1) (152,4) (198,1) (53,8) (146,1) (19,1) (15,0)
                       
8 8.17 2.38 20.11 6.50 10.35 10.00 7.90 2.12 7.77 3/4 49
(200) (208,0) (60,0) (510,8) (165,0) (262,9) (254,0) (200,7) (53,8) (197,4) (19,1) (22,0)
                       
10 10.17 2.68 23.35 8.00 12.27 11.80 9.50 3.03 9.77 7/8 78
(250) (258,0) (69,0) (593,1) (203,0) (311,7) (300,0) (241,3) (77,0) (248,2) (22,2) (35,0)
                       
12 12.17 3.00 26.10 9.25 13.77 11.80 9.50 3.03 11.75 7/8 103
(300) (309,0) (76,0) (663,0) (235,0) (349,8) (300,0) (241,3) (77,0) (298,5) (22,2) (47,0)
                       
 
 
FIGURE 1
MODEL BFV-N WAFER STYLE BUTTERFLY VALVE
NOMINAL DIMENSIONS
Nominal Recommended
Flange Size Minimum Torque
ANSI Inches Ft.-Lbs
(DN) (Nm)
   
2 - 4 20 - 30
(50 - 100) (27,1 - 40,7)
     
5 - 8 33 - 50
(125 - 200) (44,7 - 67,8)
     
10 53 - 75
(71,8 - 101,7) 
12 80 - 110
(108,4 - 149,1) 
TABLE A
 
RECOMMENDED TORQUES



 
Model BFV-N Butterfly Valve Grooved End
 
2-1/2 to 10 Inch (DN65 to DN250)General
Description
 
The Model BFV-N Grooved End But-terfly Valves (Ref. Figure 1) are indicat-ing type valves designed for use in fire protection systems where a visual in-dication is required as to whether the valve is open or closed. They are used, for example, as system, sectional, and pump water control valves. They have cut groove inlet and outlet connections that are suitable for use with grooved end pipe couplings that are listed and approved for fire protection systems.
 
For applications requiring supervision of the open position of the valve, the Gear Operators for the Model BFV-N Butterfly Valves are provided with two sets of factory installed inter-nal switches each having SPDT con-tacts (Ref. Figure 3). The supervisory switches transfer their electrical con-tacts when there is movement from the valve's normal open position dur-ing the first two revolutions of the handwheel.
 
NOTICE
 
The Model BFV-N Grooved End But-terfly Valves described herein must be installed and maintained in com-pliance with this document, as well as with the applicable standards of the National Fire Protection Association, in addition to the standards of any other authorities having jurisdiction. Failure to do so may impair the performance of these devices.
 
The owner is responsible for main-taining their fire protection system and devices in proper operating con-dition. Contact the installing contrac-tor or product manufacturer with any questions.

Technical
Data
 
Approvals
 
UL and C-UL Listed FM Approved
 
Listed by California State Fire Marshall under Listing No. 7770-1670:100
 
All laboratory listings and approvals are for indoor and outdoor use.
 
Maximum Working Pressure
2-1/2 to 8 Inch (DN65 to DN200)
 
300 psi (20,7) bar
 
10 Inch (DN250)
175 psi (12,0 bar)
 
Materials of Construction
 
Body
Ductile iron conforming to ASTM A395
 
Body Coating
 
Polyamide
 
Disc
Ductile iron conforming to ASTM A395
 
Disc Seal
Grade EPDM "E" encapsulated rubber conforming to ASTM D2000
 
Upper & Lower Stem
Type 416 Stainless Steel conforming to ASTM 582
 
Lower Plug
PVC
 
Operator
Gear operator with iron housing
 
 
Nominal Pipe     Nominal Installation Dimensions      
Valve       Inches (mm)       Weight
OD            
Sizes                 Lbs.
Inches                
Inches                 (kg)
(mm) A B C D E F G H
(DN)  
                   
2-1/2 2.88 3.85 11.94 3.25 5.67 5.90 5.82 2.13 0 22
(65) (73,0) (98,0) (303,3) (83,0) (144,0) (149,9) (147,8) (54,1) (10,0)
 
3 3.50 3.85 12.48 3.54 5.94 5.90 5.82 2.13 0 23
(80) (88,9) (98,0) (317,0) (90,0) (150,9) (149,9) (147,8) (54,1) (10,4)
 
4 4.50 4.56 14.18 4.35 6.31 5.90 7.64 2.13 0 28
(100) (114,3) (116,0) (360,2) (110,0) (160,3) (149,9) (194,1) (54,1) (12,7)
 
5 5.56 5.86 15.17 4.84 7.32 5.90 7.64 2.13 0 31
(125) (141,3) (149,0) (385,3) (123,0) (185,9) (149,9) (194,1) (54,1) (14,1)
 
6 6.63 5.86 17.54 5.93 8.62 5.90 7.64 2.13 0.67 41
(150) (168,3) (149,0) (445,5) (151,0) (218,9) (149,9) (194,1) (54,1) (17,0) (18,6)
8 8.63 5.26 19.42 6.87 9.80 9.80 7.91 2.13 5.86 53
(200) (219,1) (134,0) (493,3) (174,0) (248,9) (248,9) (200,9) (54,1) (148,8) (24,1)
10 10.75 6.29 24.03 9.17 11.61 18.00 9.49 3.03 7.41 88
(250) (273,1) (160,0) (610,4) (233,0) (294,9) (457,2) (241,0) (77,0) (188,2) (40,0)


 

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