WEIR A TYPE

DIAPHRAGM VALVE
"JOGANI" DIAPHRAGM VALVE is a linear motion valve that is used to start/stop and control fluid flow. Diaphragm valves are available in two basic forms: weir type and straight through types. The basic construction of both valves is similar except for the body and diaphragm.
Ø  WEIR-TYPE DESIGN
The Weir-Type design is the most popular type of diaphragm valve and it is best for general use applications or for tough corrosive and abrasive services. They are best used to control small flows. Weir-type bodies have bonnet assemblies recommended for handling dangerous liquid or gas because if the diaphragm fails the hazardous materials will not be released into the surrounding system. They are also recommended for food-processing applications because the body is self-draining.
Ø  STRAIGHT THROUGH (KB TYPE)
The Straight Through-Type can be used in situations where the flow direction changes within the system. The body of this design has a flat bottom that is parallel to the flow stream. This allows the flow to move uninhibited through the valve with no major obstructions. A flexible material is required for the diaphragm so that the mechanism can reach the bottom of the valve body; this can shorten the life span of the diaphragm. They are excellent for use with sludge, slurries and other viscous fluids but they are not well suited for high temperature fluids.
Diaphragm valves are especially suited for handling corrosive fluids, fibrous slurries, radioactive fluids, or other fluids that must remain free from contamination. Since the diaphragm does not come into contact with the media the valve can be used with sticky or viscous fluids, which can get stuck or clog other types of valve mechanisms.
"JOGANI" Diaphragm Valve design is developed with following and using international Standard for Having an International Competency with Global Manufacturers.
We "JOGANI" follow an international standards and designs to get 100% superior quality with workmanship & service to maintain trust of our Clients and repeat order. 
TECHNICAL DETAIL
DESIGN TYPE
WEIR-TYPE DESIGN 
STRAIGHT THROUGH-TYPE
MFG. STANDARD
BS 5156
TESTING STANDARD
API 598 / BS 6755 Part-I
FACE TO FACE DIMENSIONS
ASME B 16.10
FLANGE STANDARD
ASME B 16.5
SCREWED END STANDARD
ASME B 1.20.1
PRESSURE & TEMPERATURE RATING
ASME B 16.34
PRESSURE CLASS
125#, 150#,
PN10, PN 16,
SIZE
1/2” To 12”
(15 mm TO 300 mm)
END CONNECTIONS
FLANGED END
SCREWED (BSP / NPT) F
FLANGE DRILLING
125#, 150#,
PN10, PN 16
BS 10 TABLE D / E / F
MATERIAL OF CONSTRUCTIONS  
CI TO IS 210 GR. FG 200
ASTM A 216 GR. WCB
ASTM A 351 GR. CF8 / CF8M / CF3 / CF3M
**Also Other Special Alloy available on request.
LINING THICKNESS
3 To 5 MM
LINING MATERIAL OPTIONS
 
 
PFA – ASTM D 3307
FEP – ASTM D 2116
ETFE – ASTM D 3159
PVDF – ASTM D 3322
PP – ASTM D 4101
HDPE
OPERATIONS
HAND WHEEL / GEAR / CYLINDER
PNEUMATIC / ELECTRICAL ACTUATOR
**Also Other Special Operation available on request.