HATTERSLEY Flex Check Valve is designed with 100% full flow area and provides 25 years warranty on hinge. The seating surface is constructed at a 45 degree angle, moderating disc travel and permitting optimum flow rates. The disc’s resulting 35 degree stroke, combined with its flexible action significantly reduces valve closing time, restricting both flow reversal and the ‘water hammer’ effect.
FIGURE 661
Size Range
:
50mm to 600mm (2” to 24”)
Body Material
:
Ductile Iron ASTM A536 Gr. 65
Disc
:
Steel with encapsulated Nitrile
Hinge
:
Encapsulated Nitrile
Interior Lining
:
Epoxy coated
Pressure Rating
:
Up to 16 Bar
Connection
:
Flanged End to PN 16, ANSI B16.5 Class 150
ECCENTRIC PLUG VALVE
HATTERSLEY Eccentric Plug Valve offering a high flow capacity round port design in size up to 350mm and larger sizes has rectangular ports. The eccentric design ensures that the trunnion-supported plug rotates away from the seat as soon as movement begins to avoiding scuffing against the seat, thereby enhancing life expectancy.
FIGURE 601
Size Range
:
65mm to 1400mm (2 ½ ” to 54”)
Body Material
:
Cast Iron BS 1452 Gr. 220
Plug
:
Ductile Iron with encapsulated Nitrile
Seat
:
Nickel welded
Pressure Rating
:
PN 16 - up to 16 Bar
Class 125 - up to 10 Bar (150 P.S.I.)
Connection
:
Flanged End to PN 16, ANSI B16.5
Class 125
STATIC BALANCING VALVE HATTERSLEY Balancing Valve is conformed in general to BS 7350 which is used for regulating the flow in the heating and cooling circuits. It is featured with double regulating device allows flow to be balanced.
30/11/2005 
