Manual clamping type knife gate valve
Description:
A, product introduction:
PZ73H series Manual clamping type knife gate valve The knife type gate has a good shearing, the most suitable fluid in the slurry, powder granules, fibers and other difficult to control, widely used in papermaking, petrochemical, mining, drainage, food and other industries. Knife type valve with a variety of seat options, and can be controlled according to site requirements, equipped with electric or pneumatic actuators, valve automation.
Second, the scope of application:
PZ73H series Manual clamping type knife gate valve The suitable fluid in the slurry, powder granules, fibers and other difficult to control, widely used in papermaking, petrochemical, mining, drainage, food and other industries.
Three, structural characteristics:
PZ73H series Manual clamping type knife gate valve Is the gate opening and closing parts, RAM direction of motion perpendicular to the direction of the fluid, valve can only be fully open and fully closed, can not be adjusted and the throttle.
There are two gate sealing surface, the most common mode of gate valve sealing surface to form two wedge, the wedge angle varies with the valve parameters, usually 50, wedge type knife gate valve can be made into a whole, called the rigid gate; can also be made to produce micro deformation of ram, in order to improve its process of the deviation, make up the sealing surface angle in the process, the gate is called the flexible gate.
Knife gate valve is closed, the sealing surface can only rely on media pressure to seal, that media pressure will depend on the sealing surface of the ram pressure to the other side of the seat to ensure the sealing surface of the seal, which is self sealing. Most of the knife gate valve is sealed by force, that the valve is closed, to rely on external pressure to force the gate to the seat to ensure the sealing surface of the seal.
Four, standard specification:
Design and manufacturing standards:
The structure of standard length: GB/T 12221-2005
Flange standard: GB/T 9113
Pressure temperature rating: GB/T 12224-2005
Test standards: GB/T 13927-2008
Five, the main performance requirements:
Nominal pressure (MPa)
| Shell test (MPa)
| Seal test (MPa)
| working temperature
| Applicable medium
|
One One point six | One point five Two point four | One point one One point eight | Less than or equal to 100 DEG C Less than or equal to 100 DEG C | Pulp, sewage, slurry, coal ash, slag and water mixture |
Six, PZ73 series manual knife type gate valve, PZ73 series manual knife gate valve, manual slurry knife gate valve, the main parts of PZ73 type manual knife gate slag material:
Body and cover | Gate valve | The stem | Sealing surface |
Stainless steel, carbon steel, gray cast iron
| Carbon steel, stainless steel
| Stainless steel
| Rubber, PTFE, stainless steel, hard alloy |
Seven, PZ73 series manual knife type slurry valve, manual knife gate valve, manual mortar knife gate valve, cinder manual knife gate valve
Structure diagram and the main external and connecting dimensions manual knife type gate valve (mm):
MPa | DN | L | D | D1 | D2 | H | N-M | D0 | W (Kg) |
One | Fifty | Forty-three | One hundred and sixty | One hundred and twenty-five | One hundred | Two hundred and eighty-five | 4-M16 | One hundred and eighty | Eight |
Sixty-five | Forty-six | One hundred and eighty | One hundred and forty-five | One hundred and twenty | Two hundred and ninety-eight | 4-M16 | One hundred and eighty | Ten |
Eighty | Forty-six | One hundred and ninety-five | One hundred and sixty | One hundred and thirty-five | Three hundred and fifteen | 4-M16 | Two hundred and twenty | Twelve |
One hundred | Fifty-two | Two hundred and fifteen | One hundred and eighty | One hundred and fifty-five | Three hundred and sixty-five | 8-M16 | Two hundred and twenty | Fourteen |
One hundred and twenty-five | Fifty-six | Two hundred and forty-five | Two hundred and ten | One hundred and eighty-five | Four hundred | 8-M16 | Two hundred and thirty | Twenty-two |
One hundred and fifty | Fifty-six | Two hundred and eighty | Two hundred and forty | Two hundred and ten | Four hundred and seventy-five | 8-M20 | Two hundred and eighty | Twenty-nine |
Two hundred | Sixty | Three hundred and thirty-five | Two hundred and ninety-five | Two hundred and sixty-five | Five hundred and forty | 8-M20 | Three hundred and sixty | Thirty-eight |
Two hundred and fifty | Sixty-eight | Three hundred and ninety | Three hundred and fifty | Three hundred and twenty | Six hundred and thirty | 12-M20 | Three hundred and sixty | Sixty-six |
Three hundred | Seventy-eight | Four hundred and forty | Four hundred | Three hundred and sixty-eight | Seven hundred and eighty | 12-M20 | Four hundred | One hundred |
Three hundred and fifty | Seventy-eight | Five hundred | Four hundred and sixty | Four hundred and twenty-eight | Eight hundred and eighty-five | 16-M20 | Four hundred | One hundred and nineteen |
Four hundred | One hundred and two | Five hundred and sixty-five | Five hundred and fifteen | Four hundred and eighty-two | Nine hundred and ninety | 16-M22 | Four hundred | One hundred and ninety-five |
Four hundred and fifty | One hundred and fourteen | Six hundred and fifteen | Five hundred and sixty-five | Five hundred and thirty-two | One thousand and one hundred | 20-M22 | Five hundred and thirty | Two hundred and eighty-five |
Five hundred | One hundred and twenty-seven | Six hundred and seventy | Six hundred and twenty | Five hundred and eighty-five | One thousand and two hundred | 20-M22 | Five hundred and thirty | Three hundred and eighty-nine |
Six hundred | One hundred and fifty-four | Seven hundred and eighty | Seven hundred and twenty-five | Six hundred and eighty-five | One thousand four hundred and fifty | 20-M27 | Six hundred | Five hundred and twenty-nine |
Eight, the design of ordering:
1, please carefully before ordering the understanding of the product - knife gate valve, clearly marked specifications, types and materials, pressure, quantity.
2, the occasion is very important when using more complex or the environment when you try to provide design drawings and detailed parameters by Zhongwei control of our experts audit checks for you.
3, order the knife type valve, please fill out the order with the unit, receiving unit, the name of the payment unit, address (including the provincial, city, District, street, and No.), telephone, bank account, and representative.
4, the company's products are all order cash on delivery or delivery.
Nine, inspection (unloading) notice:
1, carefully controlled products and order (the knife type valve) is the same, and there is no breakage of packing box.
2, choose suitable methods and tools, to prevent deformation or damage of the product; our company attaches great importance to the service, in order to achieve customer satisfaction product standards we have with the customer side by side, share experiences, information, commitment, goal, in cooperation between the development of excellent products. Whether you ask the product design principle, technology, price, schedule, transportation routes and any other problem, have specific customer service staff to answer your questions.