The structural length of the 425 caliber 61 gate valve

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

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According to GB T1047-2005 "Definition and Selection of Nominal Dimensions of Pipeline Components".

Only DN400 and DN450, no DN425

Refer to GB T 9112-2010 "Steel Pipe Flange Type and Parameters".

Nominal size and outer diameter of steel pipe.

The outer diameter of the steel pipe is 426mm, and the nominal size is DN400

The outer diameter of the steel pipe is 457mm and 480mm, and the nominal size is DN450

Then according to the nominal pressure PN, check GB T12221-2005 "Structural Length of Valve" to find out the structural length.

Summary. Hello dear! We'll be happy to answer for you.

Globe valve J43H-16C flange connection length A: 50mm Oh kiss. A valve is a pipeline attachment used to open and close pipelines, control the flow direction, regulate and control the parameters (temperature, pressure and flow rate) of the conveyed medium.

According to its function, it can be divided into shut-off valves, check valves, regulating valves, etc. Valves are control components in fluid transportation systems, which have the functions of shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves for fluid control systems range from the simplest shut-off valves to the most complex valves used in automated control systems.

Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, slurries, oils, liquid metals and radioactive media. Valves are also divided into cast iron valves, cast steel valves, stainless steel valves, etc.), chrome-molybdenum steel valves, chrome-molybdenum vanadium steel valves, duplex steel valves, plastic valves, non-standard customized valves, etc.

DN15-DN50 size.

Hello dear! We'll be happy to answer for you. Globe valve J43H-16C flange connection length A:

50mm oh kiss. The valve is a pipeline accessory used to open and close the pipeline, control the flow direction, adjust and control the parameters (temperature, pressure and flow) of the conveyed medium. According to its function, it can be divided into shut-off valves, check valves, regulating valves, etc.

Valves are control components in fluid transportation systems, which have the functions of shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief. Valves for fluid control systems range from the simplest shut-off valves to the most complex valves used in automated control systems. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, slurries, oils, liquid metals and radioactive media.

According to the material, the valve is also divided into cast iron valves, cast sensitive steel valves, stainless steel valves, etc.), chromium-molybdenum steel valves, bridge-source chromium-molybdenum-vanadium steel valves, duplex steel valves, plastic valves, non-standard customized valves, etc.

Dear, hello, I am glad to answer for you: the length of the flange connection of the globe valve J43H-16C? A:

The length is a flanged globe valve, in fact, it is a globe valve with flange connection as the connection method, and its working principle is the working principle of the globe valve - to apply torque to the valve stem, so that the valve stem exerts pressure on the valve disc in the shaft direction, so that the sealing surface of the valve plate and the valve seat are tightly fitted, so as to prevent the medium from leaking from the gap. Advantages: 1. The flanged globe valve is a forced sealing valve, which has good sealing, small friction between sealing surfaces and long service life.

2. The flanged globe valve is composed of several parts: valve body bonnet, valve stem, valve disc, valve stem nut, packing, gasket and hand wheel, which are relatively convenient for manufacturing and maintenance. 3. When the opening height of the valve disc reaches 25%-30% of the nominal diameter, the flow rate reaches the maximum value, indicating that the valve is in a fully open state, and the disc stroke of the flanged globe valve is small, and its working stroke is also small, and the time required for opening and closing is short. I hope mine can help you, I wish you a happy life, if mine is helpful to you please give me a 5 star praise Oh, thank you for your support to me.

The model of the gate valve is indicated by the type of gate valve Z, the drive mode of the gate valve, the connection mode of the gate valve, the structure of the gate valve, the sealing material, and the code of the valve body material.

1. The gate valve type code is Z;

2. The driving mode code of the gate valve is indicated by letters, and the common ones are 2-electro-hydraulic, 9-electric, 6-pneumatic, 5-bevel gear transmission, 3-turbine worm; Manual does not need to be written out.

3. The connection form code of the gate valve is indicated by letters, 1-internal thread, 2-external thread, 4-flange type, 6-welding, 7-pair clamp type, 9-clamp, 0-ferrule sleeve;

4, gate valve structure form code, 0-elastic ram, 1-open rod wedge single ram, 2-open rod wedge double ram, 3-open rod parallel single ram, 4-open rod parallel double ram, 5-dark rod wedge single ram, 6-dark rod wedge double ram, 7-dark rod parallel single ram, 9-dark rod parallel double ram;

5. The sealing material or lining material is R-austenitic stainless steel, T-copper alloy, X-rubber, S-plastic, N-nylon plastic, F-fluoroplastic, H-CR stainless steel, Y-cemented carbide, J-lining rubber, and M-Monel alloy;

6. The valve body material code is Z-gray cast iron, K-malleable cast iron, Q-ductile iron, T-copper and alloy, C-carbon steel, P-chromium-nickel stainless steel, R-chromium-nickel-molybdenum stainless steel, V-chromium-molybdenum vanadium steel.

For example, for electric, flange connection, open rod wedge double gate, the sealing surface material is directly processed from the valve body, and the nominal pressure valve body material is gray cast iron gate valve: Z942W-1 electric wedge double gate gate valve.

As far as domestic valves are concerned, you can look at the valve model as follows.

1. The Z, J, L, Q, D, G, X, H, A, Y, S of the valve type code are respectively indicated:

Gate valves, globe valves, throttle valves, ball valves, butterfly valves, diaphragm valves, plug valves, check valves, safety valves, pressure reducing valves, trap valves.

2 The connecting code of the valve is indicated separately:

1. Internal thread, 2. External thread, 4. Flange, 6. Welding, 7. Clamping.

3 The transmission mode code of the valve is indicated separately:

9. Electric, 6. Pneumatic, 3. Turbine worm.

4. The body material codes z, k, q, t, c, p, r, and v are respectively indicated:

Grey cast iron, malleable cast iron, ductile iron, copper and alloys, carbon steel, chromium-nickel stainless steel, chromium-nickel-molybdenum stainless steel, chromium-molybdenum vanadium steel.

5. The seat seal or lining code R, T, X, S, N, F, H, Y, J, M, W are respectively indicated:

Austenitic stainless steel, copper alloy, rubber, plastic, nylon plastic, fluoroplastic, CR stainless steel, cemented carbide, rubber lining, monel alloy, valve body material.

The compilation description of the gate valve model is mainly for the code of the gate valve, additional requirements, drive, connection, structure, seals, pressure, material, etc.

Gate valve model compilation representation method:

Additional code for gate valve: WZ stands for bellows gate valve, DZ cryogenic gate valve, NKZ vacuum gate valve, PZ knife gate valve;

Gate valve type indication: z;

Drive mode representation: manual without code, 2 electro-hydraulic, 3 turbine worm, 5-bevel gear transmission, 6 pneumatic, 9-electric;

Connection mode: 4 flange connection, 6 welding, 7 pairs of clamp type;

Structural form representation: 0 elastic ram, 1 open rod wedge single ram, 2-open rod wedge double ram, 3-open rod parallel single ram, 4-open rod parallel double ram, 5 dark rod wedge single ram, 6 dark rod wedge double ram, 7 dark rod parallel single ram, 9 dark rod parallel double ram;

Sealing material materials: W valve body direct processing, T alloy, X rubber, F fluoroplastic, H-CR stainless steel, Y cemented carbide, M Monel alloy;

Pressure level indication: 10=means that the pressure is ten kilograms, 150lb-1500lb means American standard pound pressure, 5-63k means daily pressure;

Body material indication: Z-gray cast iron, Q ductile iron, T alloy, C carbon steel, P stainless steel 304, R stainless steel 316, V chromium-molybdenum vanadium steel.

Hello! J43H is an open rod flange cast steel globe valve. J=globe valve 4=flange 3=open rod H=cast steel.

Each symbol represents an installation. According to the domestic valve model standard, the type of the globe valve is represented by the valve type, driving mode, connection method, structural form, sealing material, and valve body material code. Extended information 1, the type code of the globe valve is J; 2. The driving mode code of the globe valve is indicated by letters, and the common ones are 2-electro-hydraulic, 9-electric, 6-pneumatic, 5-bevel gear transmission, 3-turbine worm; Manual does not need to be written out. 3. The connection form code of the globe valve is indicated by letters, 1-internal thread, 2-external thread, 4-flange type, 6-welding, 7-pair clamp type, 9-clamp, 0-ferrule sleeve; 4. The structure of the globe valve is coded, 1-DC flow channel (valve disc unbalanced), 2-Z-shaped flow channel (valve disc unbalanced), 3-three-way laughing rubber flow channel (valve disc unbalanced), 4-angle flow channel (valve disc unbalanced), 5-DC flow channel (valve disc unbalanced), 6-DC flow channel (disc balanced), 7-angle flow channel (disc balanced such as reed);

The connection methods are: wire connection

The valve works at a pressure from.

Valve diameter: DN1 DN50. (DN50 or above, generally connected with flanges) valve operating temperature from -20 degrees to 245 degrees. (with the change of seals, valve body material changes) transmission mode manual, electric, pneumatic.

Standards include: GB, JB, HB, JS, JPI, American standard: API, ANSI, German standard DIN, non-standard customization, etc.

The materials are: cast iron, cast steel, stainless steel, chromium-molybdenum steel, chromium-molybdenum vanadium steel, duplex stainless steel, forged steel, brass, etc.