Bonnet Gasket

Reinforced graphite gasket

Graphite gaskets are cut from pure graphite sheet or graphite sheet with metal reinforcement, features excellent corrosion-resistance, high-and-low temperature resistance, good compression resilient and high internsity it can be used as sealing elements of pipe, valve, pump, pressure vessel, heat exchanger and condenser, etc. Other complex gaskets such as water gauge gasket and flange gasket with bolt holes are available. Wrapped with metallic stripe in the inner and outer circle borderline. Keep the former excellent performances. Can be installed and disassembled conveniently without damage.

Thickness : 1.5mm, 2.0mm, 3.0mm, 4.5mm
Application: flanges, valve bonnets, heat exchangers, level indicatiors etc.
Typical service fluids : high temperature & pressure steam, hot water, gases, heat midium, hydrocarbon, organic so;vents, acids, alkalis(ph0-14), lpg, lng, liquefied oxgen, nitrogen and hydrogen etc.




Thickness : 1.5mm, 2.0mm, 3.0mm, 4.5mm
Application: flanges, valve bonnets, heat exchangers, level indicatiors etc.
Typical service fluids : high temperature & pressure steam, hot water, gases, heat midium, hydrocarbon, organic so;vents, acids, alkalis(ph0-14), lpg, lng, liquefied oxgen, nitrogen and hydrogen etc.

Since its establishment in 1993, Dongsuh Industry Co., Ltd. has specialized in manufacturing SEALING products for power generation facilities in Korea. In particular, as we manufacture SEALING products, which are mostly used in critical power generation equipment systems, we value quality stability and develop excellent technical skills.
The reliability of quality has been verified by acquiring 'Q', the highest level of safety of qualified suppliers, including ISO 9001 and 14001, and the five leading power companies under the Korea Electric Power Corp. have various quality certificates. We are also conducting R&D to continuously improve quality, improve working environment, and develop new products.
Based on these efforts, we have won awards for excellent suppliers to major power generation companies in Korea and expanded our production lines by steadily increasing sales. We are now trying to move beyond the domestic market to the global market.

SPIRAL WOUND GASKETOutstanding capability for high temperature and high pressure
Automatic flexibility and recovery from the change of temperature, pressure, vibration and working conditionsEfficient production for any type of dimensions such as round or oval type, etc.Outstanding sealing capability as it is produced according to the pressure of unbalanced flange.
Hoop and Filler materials can be selected according to special operating conditions.

GRAPHITE MOLD PACKING
â?¢ Graphite Tape Packing is the packing that compressed and molded in a certain dimension for easy installation.
â?¢ The graphite's self-lubrication capability and low coefficient of friction allow to use in a wide range without giving damage on the reciprocating and rotary shaft.
â?¢ If you want to disassemble only gland without disassembling pump and valve, you can just cut it and deliver.
â?¢ You can get better sealing effects if you use with ALS910C, ALS900G and ALS955W depending on the use purpose.

RING JOINT GASKET
Ring joint gasket is a type of pressure energized gasket used on pipe flanges, pressure vessels, Valve bonnets handling, high pressure steam, gas, hot oil, solvent vapor at high temperature.
DONGSUHs experienced technology offers many different types so that customers may select the most suitable one in accordance with operating conditions.

MECHANICAL PACKING (VARIOUS MODELS DEPENDING ON CONDITON)
PTFE V-PACKING
SPRING ENERGIZED SEAL

Graphite Gasket is cut from pure graphite sheet or graphite sheet with metal reinforcement, features excellent corrosion-resistance, high-and-low temperature resistance, good compression resilient and high internsity it can be used as sealing elements of pipe, valve, pump, pressure vessel, heat exchanger and condenser, etc. Other complex gaskets such as water gauge gasket and flange gasket with bolt holes are available. Wrapped with metallic stripe in the inner and outer circle borderline. Keep the former excellent performances. Can be installed and disassembled conveniently without damage.It's widely used in flanges,valve bonnets,heat exchangers and level indicatiors etc..
Whatsapp:86-13566083951
Types:
IG006-01 Flexible graphite gasket
IG006-02 Reinforced graphite gasket with tanged steel
IG006-03 Reinforced graphite gasket with flat steel

Pictures of API 6A 6B flanges R45 gaskets : Parameters of API 6A 6B flanges R45 gaskets :Item No: R24Size:222.25,200.03,15.88,7.75Shape: Octagonal Ring GasketTemperature: -150°C--800°CCertificate: API6A,ISO9001:2000, TS SafetyPressure: 700 barStandard: ASME B16.20 HG20612 HG20633Application: Pipe flanges and valve bonnets high pressure steam, gas, hot oil, oil gas, sol-ventvanor, oxygen at high temperature in oil re-fineries, petrochemical plants, thermal power plants and steam turbined vessels.Warranty:1 year Tolerances: (Inches) Width of Ring .......................................±0.008 Height of Ring ......................................±0.020 Pitch Diameter ......................................±0.007 Angle of 23° ......................±1/2°The hardness of the ring should always be less than the hardness of the flanges to prevent flange deformation. Dimensions for API ring joint gaskets and grooves are covered in ASME B16.20 and API6A Pictures of our company:  RFQ:1.Whats the warranty for your goods?We give our clients 1 year quality warranty2.Whats the packing way of your goods?We always packaging the goods by white box, if clients need custom designed color box is possible, also can choose packaging them by wooden case.

Pictures of API 6A RX24 ring joint gasket: Parameters of API 6A RX24 ring joint gasket:Item No: API 6b flanges RX gasketsSize: 105.9782.1525.46.45Net weight: 0.62KGShape: Octagonal Ring GasketTemperature: -150°C--800°CCertificate: API6A, ISO9001:2000, TS SafetyPressure: 700 barStandard: ASME B16.20 HG20612 HG20633Application: Pipe flanges and valve bonnets high pressure steam, gas, hot oil, oil gas, sol-ventvanor, oxygen at high temperature in oil re-fineries, petrochemical plants, thermal power plants and steam turbined vessels.Warranty:1 year Features of API 6b flanges rx gaskets:1)Octagonal ring gasket is a kind of oil, water, steam, acid and alkali salt, hydrogen, nitrogen and other pipe flanges, valves, pressure vessels, submarine, high-speed joint surface, high temperature and high pressure valve cover and other pressure joint seal. 2)There are a variety of materials and types to suit different design and operating requirements, in full compliance with ANSI B16.20 regulations. Commonly used soft iron, 10 # steel, stainless steel oval and octagonal type, in the new flat-bottomed slotted flange can be used interchangeably, the company can supply within the shortest period. 3)Metal material: 304,304L,316,316L,321,310,340,347,H32750,Carbon Steel, Hastelloy B2,Titanium and so on. 4)Suitable medium: steam, hydrogen, water, natural gas, pyrolysis gas, oil, acid, alkali, salt solution. Application scope: In the petrochemical, petroleum, chemical, fertilizer, polysilicon, high temperature, high pressure, high corrosion, groove valve, flange, container and other interfaces sealed. 5)Note: The choice of metal ring material hardness should be lower than the flange 15 ~ 20 HB, and the old product is not recommended for repeated use, due to material may occur hardening and damage to the flange or sealing performance.6)Certification: ISO9001; CE; TS; API Pictures of our company: RFQ:1.If your company can accept sample order?Yes, we can accept sample for clients test quality before place order.2.Your main market?We sell the goods all over the world and main market including USA, North America, Italy, Mainland and so on.

Pictures of API 6A 6BX flanges BX156 gasketsParameters of API 6A 6BX flanges BX156 gaskets:Item No: 6B flanges BX gasketsSize: Ï?237.92,235.28,200.68,18.62,15.98Net weight: 1.84KGShape: BX type Metal ring GasketTemperature: -150°C--800°CCertificate: API6A, ISO9001:2000, TS SafetyPressure: 700 barStandard: ASME B16.20 HG20612 HG20633Application: Pipe flanges and valve bonnets high pressure steam, gas, hot oil, oil gas, sol-ventvanor, oxygen at high temperature in oil re-fineries, petrochemical plants, thermal power plants and steam turbined vessels.Warranty:1 year Description of API 6bx flanges bx gaskets:Metal machined gasket mainly machined from solid metal in a variety of shapes with high quality numerical control machines.They are designed for high pressure, high temperature or highly corrosive applications by selecting the most suitable materials and shapesMaterialMaximum Hardnedd  (BRINELL)T( °C)Soft Iron90530Low carbon Steel1205304C6% Chrome 1/2% Mol(F5)130500304 Stainless Steel160750316 Stainless Steel160750321 Stainless Steel160750347 Stainless Steel160750410 Stainless Steel17050031254 Stainless Steel160650Monel140600Inconel 8251601000Inconel6251801100 Pictures of our company: RFQ:1.How many quantity workers in your company?Our company have 50-100 workers now and the quantity is growing up each year.2.When your company established?Our company established since 1976 and have many experiences now.

The NRS ductile iron resilient seated gate valve, which is epoxy coated, can be safely used in municipal water supply,sewage and plumbing etc.

material list:
1.Body-QT450-10 2.Bonnet gasket-EPDM 3.Wedge-QT450-10+EPDM 4.Stem nut-ZCuAl10Fe3 5.Bonnet-Qt450-10 6.O ring-NBR 7.Support bush-ZCuAl10Fe3 8.Gland housing-Qt450-10 9.Dust seal-NBR 10.Stem-2Cr13 11.Handwheel-ZG35 12.O ring-NBR 13.Packing ring-PTFE 14.Sealant-Parafin 15.Female hax head screw-Carbon Steel 16.O ring-NBR 17.Female hex head screw-Carbon Steel 18.Guide shoe-POM


ply-wood package

WRAS approved,NRS ductile iron resilient seated gate valve,size from DN50-DN800,pressure from PN10/PN16.

material list:
1.Body-QT450-10 2.Bonnet gasket-EPDM 3.Wedge-QT450-10+EPDM 4.Stem nut-ZCuAl10Fe3 5.Bonnet-Qt450-10 6.O ring-NBR 7.Support bush-ZCuAl10Fe3 8.Gland housing-Qt450-10 9.Dust seal-NBR 10.Stem-2Cr13 11.Handwheel-ZG35 12.O ring-NBR 13.Packing ring-PTFE 14.Sealant-Parafin 15.Female hax head screw-Carbon Steel 16.O ring-NBR 17.Female hex head screw-Carbon Steel 18.Guide shoe-POM


ply-wood pallet

Screwed End Gate Valve
Main features

* Bolted body-bonnet design for valves up to Class 800, 1500, 2500, 4500. Valves with welded bonnet also available on request

* Screwed with a seal-welded body-bonnet design for valves of Class 1500,2500, 4500.

* Bellows-sealed Gate and Globe valves available in Class 800

* Bolted body-bonnet joints provided with spiral-wound stainless steel gasket and graphite filler for maximum protection against leaks

* Die-formed graphite inner packing rings and braided graphite end rings with Inconel wire reinforcement and corrosion inhibitor

* T-head stem-disc connection of gate valve fully meets strength requirements of API 602 and API 598

* Rolled ACME thread on stem for smooth operation

* Tapered shoulder on the stem for back seating

* Self-aligning type gland assembly with stud-and-nut tightening

* Integral hard-faced body seat for globe and check valves

* Spring-loaded disc on check valves suitable for no horizontal applications too

* Gate and globe valves can be offered with electrical actuators

* Austenitic SS forging for body and bonnet of Cryogenic valves, resulting in excellent impact strength, minimal heat loss and resistance to corrosion

* Valves can be offered to NACE MR-0175 and other special NACE requirements