Globe Valve-API Cast Steel
| Price: |
Negotiable/Piece |
| Trade Terms: |
FOB,CFR,CIF |
| Min Order: |
1/Piece |
| Pay Type: |
L/C,T/T |
Product Description
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.
Actuation
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.
Packing seal
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.
Belleville spring loaded packing impacting system
If being requested by the customer, the Belleville spring loaded packing impacting can be adopted for enhancing the durability and reliability of the packing seal.
Back seating design
All our globe valves have the back seating design. In most 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.
Seat
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 NPS< 10 globe valve, and welded on seat can be also optional if being requested by the customer. Welded on seat is used for NPS> 12 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.
Stem design
The stem is of integral forged design. The minimum diameter of the stem shall per the standard requirement.
Stem nut
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.
Raymond (Beijing) Valve Manufacturing Co., Ltd. is located in Beijing Miyun Economic Development Zone, adjacent to Beijing Capital Airport and the Beijing-Chengde Highway. The company covers an area of about 160, 000 square meter, and present workshop area is 40, 000 square meter. The total workshop area will reach 110, 000 square meter in 2012. Raymond (Beijing) Valve Manufacturing Co. Ltd focuses on valve design, R&D, production, sales, service, import and export. Possessing perfect environment and equipments, Raymond has become the leading enterprise in Miyun Economic Development Zone. The company currently has 360 employees, 5 of whom are professor engineers and 29 are senior professional engineers and technicians. Raymond's R&D center is furnished with a CAD and CAM to conduct product design and development, and it's product analysis research center adopts PRO/E and SolidWorks to realize product modeling and finite element analysis. By its own innovation and development, Raymond has become an professional valve manufacturer with strong R&D and production capabilities both in domestic and worldwide.
Raymond owns 158 Metal processing and cutting equipments including top class Large horizontal and vertical CNC machining center, CNC machine tools, Vertical lathe, Horizontal Boring Machining, Supersonic sphere spraying device, Ball processing equipment; Automatic submerged arc welding machine, gas shielded welding machine, etc; Advanced physical and chemical testing, NDT, spectral analysis, mechanical properties testing, ultrasonic hardness testing, ultrasonic thickness measuring, heat treatment equipments; Advanced comprehensive valve performance testing, valve torque, life test devices and equipments; A set of advanced and comprehensive quality control system and perfect quality assurance system, e. G. ISO9001, ISO14001, ISO28001, API, CE / PED and TS quality system certifications and API607, API 6FA and other international, national and regional certifications.
Relying on the international design concept, introducing foreign advanced design and manufacturing technology, Raymond has developed ball, gate, globe, check and butterfly valves conforming to ASME, ANSI, API, EN, GB, JIS, DIN, ISO and other multiple technical standards. Among all the products, the high-performance large-size fully welded pipeline ball valve, abrasion-resistant ball valve for coal chemical and the fully welded ball for district heating are the Raymond's representative high-tech products. Size: 3/8~60(DN10~DN1500); Pressure class: ASME/ANSI Class150~2500Lb (PN0.25~42.0Mpa); Materials: Cast or forged carbon steel, alloy steel, stainless steel and duplex stainless steel, titanium, nickel-based alloys and other special materials; Working temperature: -196Celsius~+550Celsius. The products of Raymond Co. Has been widely applied in the fields of Oil, natural gas pipelines and oil refining, chemical, power plants, pharmaceutical, metallurgy, city infrastructure construction, water treatment and many other fields. Raymond's valves compete in both domestic and foreign market by its core competitiveness of high performances and high Performance-to-Price Ratio. Meanwhile, Raymond provides its customers with valves synchronized with world famous brand as well as integrated solutions for fluid control.
Therefore, Raymond valves are widely applied in the fields of petroleum, natural gas pipelines and oil refining, chemical, power, pharmaceutical, metallurgy, urban construction, water treatment and so on.
Corporation philosophy: Basing on world fluid control industry, create world brand, make the company finer, stronger and larger, and provide customers with complete product solutions.
Corporation culture: Honesty, Cooperation, Innovation, and effectiveness.
