• DN66 Ductile Iron Rubber Gate Valve With Long Stem System 1
  • DN66 Ductile Iron Rubber Gate Valve With Long Stem System 2
  • DN66 Ductile Iron Rubber Gate Valve With Long Stem System 3
DN66 Ductile Iron Rubber Gate Valve With Long Stem

DN66 Ductile Iron Rubber Gate Valve With Long Stem

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Soft seal gate valve

Size:DN40mm-600mm

Design standard: DIN 3352/BS 5163/AWWA C509/JIS B2043

Test standard: DIN3230/BS 6755/AWWA C509/JIS B2003

End flange standard: DIN 2533 PN16/BS 4504 PN16/ANSI 150LB/JIS B2212 10K

Face to face standard: DIN 3202 F4/DIN 3202 F5/BS 5163/ANSI 16.10/JIS B2002

Body: Ductile iron/GGG50/A536

Wedge: Ductile iron+EPDM/Ductile iron+NBR

Stem: Brass/SS416/2Cr13

Bonnet: Ductile iron/GGG50

Handwheel: Ductile iron/GGG50

The products are widely used in water source projects, urban water supply and drainage, sewage treatment, eletric power, petroleum, petrochemical, heat supply, shipbuilding, medicine and metallurgy industries. Equipment are used for regulating or cutting off media in pipelines. Suitable media include water sewage, sea water, air, foodstuff and oil. Suitable for gear operators, electric and pneumatic control actuators.

 


Q: What type of flange does it fit with the gate valve?
According to the welding plate flange, flange material selection of piping material.
Q: Analysis of the advantages of elastic seat sealing gate valve?
Most of the valve is forced seal, that is, when the valve closed, to rely on external force to force the gate to the seat, in order to ensure the sealing surface sealing.When opening the gate valve, when the gate lift height is equal to 1:1 times of the gate diameter, the passage of the fluid is completely unblocked, but at run time, this position is unable to monitor. In actual use, the top of the stem is used as a sign, i.e., the open position, as its fully open position. Temperature changes appear to consider locking phenomenon, usually open to the vertex position, and then rewind 1/2-1 circle, as a fully open valve position. Therefore, the opening position of the gate valve is determined by the position of the gate (i.e. the stroke). The sealing surface is easy to wear and tear, affecting the service life. When opening and closing, gate and valve seat two sealing surface friction, sliding, to medium pressure under the action of easy to produce abrasions, wear, affect sealing performance, shorten service life.
Q: What is gate well?
Technical requirement:1: the valve itself can not seep, it must ensure its tightness;2: water supply pipeline during use, pipeline will be pressure from different aspects, which will produce different degrees of jitter or settlement, which requires the connection of water supply pipes and valves in the well to be reliable, able to adapt to a certain degree of jitter and settlement, and to prevent water infiltration into the well chamber in the pipeline valve wells; deep, slightly larger are generally made of cast iron valve (such as the cut-off valve, butterfly valve) iron valves long-term immersion in water, will affect the service life or cause fracture, so the sealing requirements are higher;3: valve shaft, shaft and well body, manhole cover way of connection should be reliable, not because of heavy rain or water seepage water into the well room.4: valve well is buried in the ground, to bear from different directions of different pressure, and different chemical substances corrosion and damage, and requirements of its pressure capacity and acid and alkali corrosion is better.
Q: Is the gate valve flanged?
The most commonly used gate valves are threaded connections, flanged connections, and welded connections.Like the outer thread connection, the clamp connection, the card sleeve is seldom used.
Q: What is the allowable leakage rate of the gate valve D?
In GB/T 13927, the leakage rate of the valve is divided into 10 grades, namely: A, AA, B, C, CC, D, E, EE, F, G class. And stipulates that when the order contract does not specify, the metal sealing valve according to D requirements.
Q: The valve safety valve check valve + + + = exposed part of a water pump adapter? Five
Generally do not require safety valve, just install exhaust valve in individual places.
Q: Function of gate valve
The valve (including the valve and valve) is a fluid pipeline control device, its basic function is to connect or cut off the pipeline medium circulation, changing the medium circulation, change the direction of the flow medium, medium pressure and flow regulation, to protect the normal operation of pipeline equipment.
Q: What is the Z15T-16C letter of the gate valve?
The Z class code indicates the type of gate valve, gate valve is the first letter of the alphabet. The gate is manual driving mode, 1 said the connection form of gate valve for connecting thread, 5 represents the structure form of gate valve for rigid single gate, T gate said lining material of copper alloy, 16 PN1.6MPa nominal pressure valve. C said the valve body material is carbon steel.
Q: What is the difference between gate valve 41h-16c and 41w-16p?
According to the provisions of the JB/T 308-2004 valve type programming method:H== sealing surface material: Cr13 stainless steelC== body material: carbon steelW== sealing surface material: body, that is, with the same material bodyP== body material: chrome nickel stainless steel
Q: What does "Z45W-10T" mean?What does each letter stand for?
W is the seal material or lining material code, the valve sealing material is the valve body material, the valve sealing surface material code with "W" said, here stands for brass;The 10 is the pressure code, which stands for PN10, which is often called 1.0MPa;

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