Butterfly Valve Without Pin Ductile Iron DN430

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Tianjin
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Min Order Qty:
5 set
Supply Capability:
50000 set/month

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Product Description:

Centerline structure,pinless double half shaft design.
Disc has two-way bearing, no installation direction requirements.
Non-backed replaceable seat with good performance and a longer working life.
Square and short neck for lable use and cost saving.
Easy installation, no need flange gasket.

 

SizeDN50mm-DN600mm
Design standardAPI609/EN593
End flangeDINPN10/PN16, BS4504PN10/PN16, ANSI class125#/class150#
Face to faceAPI609/EN558-1
Top flangeISO5211
BodyDuctile iron/Cast iron
DiscDuctile iron/CF8/CF8M/C95400/C95500
StemSS420
SeatEPDM/NBR/Viton/PTFE
ActuatorBare shaft/Lever/Gearbox and handwheel
CoatingEpoxy/Nylon/PTFE
PinWith out pin
Suitable mediumWater/Seawater/Sewage/Air/Foodstuff/Oil

 

 

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Q:What is the meaning of socket welding gate valve A105, D&S:STLT, STEM:13Cr, CL800, SW, AP1602, BB-BG-OS&Y?
Body material: A105Sealing surface material: STLStem material: 13CrPressure rating: CL800Connection: SWImplementation criteria: AP1602BB-BG-OS&Y: plain rod support, bolt connection, flange valve cap.
Q:The difference and use of gate valve and stop valve
Medium flow is unrestricted.When opening fully, the sealing surface is eroded by the working medium smaller than the cut-off valve.The shape is relatively simple and the casting process is better.The valve is used in the system is relatively large, to close the gate off system; and the valve is used in the system is relatively small, and to adjust the flow quantity of the system, can not be closed gate and globe valves of different specifications for many kinds of occasions, the valve rod valve the dark bar gate valve, wedge gate valve, single valve, multi valve valve body structure is different, large volume.
Q:Which is more expensive, bronze gate valve or brass gate valve?
But the obvious weakness of brass is its poor strength, relatively large volume, and its lack of corrosion resistance.
Q:Is the axial force and torque of the wedge gate valve the same?
See where you are, it is better to compare it: wedge type single gate valve features: a structure more flexible, gate valve is simple, sealing performance better than flexible gate valve or double gate valve.
Q:Internal screw current limiting gate valve (Tan Gang) PN5.0 DN15/ Phi 1 Rc1/2 what does that mean?
We did thatInternal thread current limiting gate valve (Tan Gang)Body material: carbon steelPressure rating: PN5.0 = 300LB American StandardNominal = DN15 = 1/2"Phi 1 = in the middle of the gate drilling a Phi 1 hole, so that in closing there will be a certain flow, that is, the minimum flow, that is, the current limit.Rc1/2 is thread, which is the connection
Q:What do you mean by forged steel gate valves 800LB DN20 SW?
Forged steel gate 800LB pressure DN20 is by SW said socketweld (connection)
Q:What are the types and product categories of knife gate valves?
Knife gate valve drive: manual, electric, pneumatic, hydraulic, bevel gear, electro hydraulic and pneumatic drive.Knife gate shape: bright rod, dark rod two kindsKnife gate valve material: cast iron, cast steel, carbon steel, stainless steel, fluorine and so onKnife gate valve seal: hard sealing, soft sealing, single-sided sealing, double sided sealing and other material seal.
Q:Gate valve z11h/y-16 what does that mean?
Product Name: internal thread gate valveItem number: Z11HProduct specification: DN15-50Product pressure: 1.6MPa-2.5MPaMaterial: cast iron, cast steel, stainless steelInternal thread gate valve nominal pressure 2.5Mpa, applicable temperature range -20-232-350, applicable medium: water, oil, gas and certain corrosive liquid (W.O.G), thread type G.NPT.BSPT.BSP.DIN259/2999.
Q:Why the valve can only be fully open and fully closed valve can adjust the flow?
Valve, if adjusted, it is easy to wash the sealing surface, resulting in sealing surface damage.
Q:Is the check valve in or behind the gate valve?
Pump outlet, check valve, gate valve.Gate valve plays a regulatory role, is the main pipe. Such a sequence can ensure that the water flow during power failure does not cause damage to the gate valve.

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