Cast Steel Flanged Gate Valves

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Product Description:

Cast Steel Flanged Gate Valves

 

Cast Steel Flanged Gate Valves

 

Specifications Of Cast Steel Flanged Gate Valves: 

 

Nominal Diameter: DN15~200mm 

Nominal Pressure: 1.6MPa

Suitable Medium: water, steam, oil

Suitable Temperature: ≤100°C

Type of drive: hand lever, worm gear, electric

 

 

 

 

Body And Bonnet Connection Of Cast Steel Flanged Gate Valves

 

The body and bonnet of Class 150-Class 800 globe valves are usually with studs and nuts,And the body and bonnet of Class 1500-Class 2000 globe valves are usually of pressurized seal design.

 

Back Seating Design Of Cast Steel Flanged Gate Valves:

 

All our globe valves have the back seating design. In most cases, the carbon steel globe valves is fitted with a renewable back seat. For stainless steel globe valve, the back seat is machined directly in the bonnet or is machined after welding. When the globe valve is at fully open position, the sealing of the back seat can be very reliable. However, as per the requirement of API 600, it is not advisable to add or change packing by the mean of back seating when the valve is pressure containing

 

Cast Steel Flanged Gate Valves

 

 

Design Feature Of Cast Steel Flanged Gate Valves

 

Rational structure, reliable sealing, excellent performance, pretty appearance.

Co-radix alloy welded sealing surface, anti-wearing, erosion-proof abrasion-proof and longer use life.

The surface and the adjusting media of the valve shaft are nitrogenzed so that it is erosion and abrasion resistant.

Class1500,the middle cavity uses a self-tightening sealing structure to have the sealing performance reinforced along with the pressure rise so as to ensure the sealing performance.

There is no backward sealing structure in the valve, so the sealing is reliable.

The material of the filling and the flange size can be chosen and matched according to the applications and the requirements of the wier/s. That can satisfies all kinds of working requirements

 

 

 

Packaging & Delivery Of Cast Steel Flanged Gate Valves

 

Molded flexible graphite is used for packing material. PTFE or combined packing material can be also used if being requested by the customer. The internal surface of the stuffing box, of which area is contacted with the packing, is of excellent finish(Ra 3.2µm). The stem surface, contacting with the packing, should be rolled and pressed after being precisely machined, so as to reach to the high finish and compactness (Ra 0.8µm) and ensure the reliable tightness of the stem area.

 

Usage/Applications Of Cast Steel Flanged Gate Valves:

 

 

These products are widely used in water source projects, urban water supply and drainage, sewage treatment, electric power, petroleum, petrochemical, heat supply, shipbuilding, medicine and metallurgy industries.

Valves are used for regulating or cutting off liquids in pipelines. Liquids available include water, sewage, sea water, air, foodstuff and oil.

 

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Q:Fire protection gate valve from the wall how many distance there is no regulation?
1 meters away from the wall, leaving the maintenance and replacement distance
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 between flanged gate valve and common gate valve
General diameter of more than 50 with flanges, inspection wells, main pipes, trenches... Must use flange gate valve, good operation, good replacement.
Q:Is the check valve in or behind the gate valve?
The exit of the general pump is the first soft connection (shock absorber), followed by the check valve, and then the partition valve (such as butterfly valve, gate valve, cut-off valve, etc.), this is not the final answer.The question is interesting, and no corresponding information has been found in the relevant standards. We have also discussed the related issues, but differences of opinion is relatively large, the advantages of 1, first installed check valve installed after the valve or butterfly valve, check valve, can be protected, especially in a parallel pump, when the pump does not start, another pump starts when the impact force is gate valve or butterfly valve bear, disadvantages: gate valve or check valve who will protect? There have been a case of butterfly valve is broken. 2, first installed gate valve or butterfly valve installed after the check valve, advantages: can protect the butterfly valve or gate valve, the impact on the check valve to bear. Disadvantages: check valve who will protect, check valve by pressure difference switch, if the high pressure high pressure pipe, pump, if the flow is not stable, so check valve will repeatedly switch, will affect the check valve life. Personal opinion: check valve, check valve performance now have changed, many are using the slow closing check valve, so the impact force is two aspects to bear, because exports are not fully open the valve or butterfly valve, so you can put in check after the gate valve or butterfly valve valve. If not the slow closing check valve installed in the valve or the best after the butterfly.
Q:What is the standard length of GB steel gate valve?
1, product standardsGeneral purpose valves, flanged connections, iron gate valves, GB/T 12232-2005General requirements for steel valves GB/T 12224-2005"Steel flat gate valves for pipelines" JB/T 5298-91Inspection and test of valves. JB/T 9092-1999Standard for safety evaluation of drinking water distribution equipment and protective materials GB/T 17219-1998
Q:What do gates, Z15T-10, Z15W-16T, Z45T/W-10, Z41T-10 mean?
7-, dark bar parallel gate valve, parallel gate valve 9- dark bar;5, sealing materials or lining materials were used R- T- austenitic stainless steel, copper alloy, X- rubber, S- plastic, N- nylon, F- fluorine plastic, H-Cr series stainless steel, hard alloy Y-, J- rubber, M- Monel alloy, Tc- ceramics;6, the body material code Z- K- gray cast iron, malleable cast iron, Q- ductile iron, copper and T- alloy, C- steel, P- chromium nickel stainless steel, R- stainless steel chromium nickel molybdenum, chromium molybdenum vanadium steel V-.For example: for electric, flange connections, Ming Liang wedge double gate, the sealing surface material directly processed by the body, nominal pressure PN0.1MPa body material for gray cast iron gate valve: Z942W-1 electric wedge double gate valve
Q:Pump adapter generally includes what accessories?
Generally do not require safety valve, just install exhaust valve in individual places.
Q:What do you mean by "2" and "200 CF8M"?
CF8M is 316,2 "is 50200 caliber stainless steel pressure (American Standard, LB)
Q:What is plug welding gate valve?
Socket welding valve refers to the use of socket welded connection valve.Simple socket welding is to insert the pipe into the gate joint to weld.The form of socket welding is mainly used for welding small bore valves and pipes, fittings and pipes. Small caliber pipeline wall thickness is thin, and error prone edge ablation, butt welding is difficult, more suitable for socket welding. In addition, the socket of socket welding has reinforcement effect, so it is also used under high pressure. But socketweld also has disadvantages, one is the stress condition is not good after welding, easy welding penetration, pipe inside a gap, so should not be used for piping system of crevice corrosion sensitive medium pipeline system and clean high requirements for socket welding. In addition, ultra high pressure pipeline, even small caliber pipe wall thickness is also very big, can use butt welding connection, as far as possible to avoid socket welding.
Q:What's the meaning of the gate valve model z41x 16Q?
Gate valve (Z) flange connection (4) wedge type single gate (1) rubber soft seal (X) -16 pressure) (Q)
We focuses on supplying special valves applied to long-distance pipelines, petroluem, petrochemical processing devices and other harsh working conditions.We offer integrated solutions for industrial valves.The leading products of group are ball valve series, control valve series, cryogenic valve series, high temp.& pressure valve series, special material and process valves series.

1. Manufacturer Overview

Location Shanghai, China
Year Established 1993
Annual Output Value Below US$1 Million
Main Markets North America; East Europe; West Europe; East Asia; Mid East
Company Certifications ISO9001:2008;CE;API-6D;OHSAS18001:2007

2. Manufacturer Certificates

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Reference  
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3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Shanghai
Export Percentage 1% - 10%
No.of Employees in Trade Department above 100 People
Language Spoken: English; Chinese
b)Factory Information  
Factory Size: 89,000 square meters
No. of Production Lines Above 10
Contract Manufacturing OEM Service Offered; Design Service Offered
Product Price Range High; Average