We – EPG Group the bigge EPT Chain and agricultural gearbox factory in China with 5 different branches. For more details: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828
Detailed Globe Valve Description
1. Basic Design: API 602, ANSI B16.34, BS 1873
2. Test: API 598, BS 6755
Size: 1/2″ ~ 16″
Rating: ANSI 150lb ~ 2500lb
Body materials: WCB, LCB, WC6, WC9, C12, C5, CF8, CF3, CF3M, CF8M, A105, LF2, F11, F22, F5, F304,
F316, F304L, F316L, A182 F316
Operation: Handwheel, Motor, Gear, Pneumatic operator
1. Full Port or Convetional Port
2. Outside Screw and Yoke(OS&)
3. Two Piece self aligning packing gland
4. Integral backseat
5. Loose solid disc
6. Socket weld Ends to ASME B16.11
7. Screwed Ends to ANSI / ASME B1.20.1
8. Application: Oil & gas processing, chemical, refinery, petrochemical, power plant
The features of globe valve
Bolted Bonnet; Outside Screw and Yoke; Rising stems; Metallic seating surfaces.
Body and Bonnet Connection
The body and bonnet of Class150~Class900 globe valves are usually bolted bonnet design. And the Class1500~Class2500 globe valves are usually of pressurized seal design.
Gasket of Cover Flange
Stainless steel + flexible graphite wounded gasket is used for Class 150 and Class 300 globe valve. Stainless steel + flexible graphite wounded gasket is used for Class, and ring joint gasket is also optional for Class 600. Ring joint gasket is used for Class 900 globe valve. Pressurized seal design is used for Class 1500~Class 2500 globe valve.
Hand wheel, impact hand wheel and gear box is usually used for globle valve actuation. Chain wheel and electric acduator can be also used for globle valve actuation if being reguested by the customers.
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 3.2um). 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 0.8um)and ensure the reliable tightness of the stem area.
Back seating design
All our globe valves have the back seating design. In mo EPT cases, the carbon steek globe valve is fitted with a renewable back seat. For stainless steek 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, it is not advisable to add or change packing by the mean of back seating when the valve is pressure containing.
For carbon steek globe valve, the seat is usually forged steel. The sealing surface of the seat is spray welded with hard alloy specified by the customer. Renewable threaded seat is used for NPS12 carbon steel globe valves. For stainless steel globe valve, intergral seat is usually adopted, or to weld hard alloy directly intergrally. Threaded or welded on seat is also optional for stainless steel globe valve if being requested by the customer.
The stem is of integral forged design. The minimum diameter of the stem shall per the standard requirement.
Usually, the stem nut is made of ASTM A439 D2. It is also can be made of copper ally if being requested by the customer. For large sized globe valve, rolling bearing is fitted at the two sides of stem nut in order to minimize the open and close torque of the globe valve.
Special globe valve
Besides the common globe valves, we also makes cryogenic globe valve, bellow sealed globe valve, Jacketed globe valve, etc.
|ITEM||P EPT NAME||MATERIAL|
|1||Body||ASTM A216 GR.WCB|
|2||Seat Ring||ASTM A105 + Stellite Faced|
|3||Disc||ASTM A105 + 13 EPT Faced|
|4||Disc Thru EPT Plate||ASTM A276 Type 420|
|5||Disc Nut||ASTM A276 Type 410|
|6||Stem||ASTM A182 GR.F6|
|7||Bonnet Bolt Nuts||ASTM A194 GR.2H|
|8||Bonnet Bolts||ASTM A193 GR.B7|
|9||Gasket||Soft Iron + Graphite|
|10||Backseat Bushing||ASTM A276 Type 410|
|11||Stem Packing||Braided Graphite & Die formed Graphite Ring|
|12||Bonnet||ASTM A216 GR.WCB|
|13||Eye Bolt Pins||Carbon Steel|
|14||Gland||ASTM A276 Type 410|
|15||Gland Flange||ASTM A216 GR.WCB|
|16||Gland Eye Bolts||ASTM A307 GR.B|
|17||Eye Bolt Nuts||ASTM A194 GR.2H|
|18||Yoke Bush||ASTM A439 GR.D-2|
|20||Hand wheel||Ductile Iron|
|21||Hand wheel Nut||ASTM A194 GR.2H|
|23||Yoke||ASTM A216 GR.WCB|
|24||Yoke Pan Bolt Nuts||ASTM A194 GR.2H|
|25||Yoke Pan Bolts||ASTM A193 GR.B7|
Ca EPT steel globe valve-Class 150dimensions & weights
|Size||L/L 1||L2||H||W||Weight RF|
The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.