Product Overview

ΟΑνθεκτική βαλβίδα σφαιρικής φλάντζας από όλκιμο σίδηρο is a high performance manual shut-off valve designed for reliable flow regulation and isolation in water, έλαιο, gas and steam piping systems. Using a sturdy WCB carbon steel/ductile iron valve body with 13Cr stainless steel hardened disc and stainless steel stem (A182F6a), it provides excellent wear resistance, sealing performance and long service life in harsh industrial environments. It is suitable for a wide range of industrial applications such as power generation, chemical processing, oil and gas, and HVAC.

Ανθεκτική βαλβίδα σφαιρικής φλάντζας από όλκιμο σίδηρο

Technical Specifications

Ανθεκτική βαλβίδα σφαιρικής φλάντζας από όλκιμο σίδηρο

Working Principle

The globe valve operates by raising or lowering a disc (plug) relative to the stationary seat, controlling the flow of media through the valve. The handwheel turns the stem, which moves the disc up and down:

• Valve Closed: The disc is lowered onto the seat, creating a tight seal that stops flow completely.
• Valve Open: The disc is raised from the seat, allowing media to flow through the valve body.
• Throttling: The disc can be positioned at any point between fully open and fully closed, enabling precise flow regulation.

Key Features

1. High-Strength WCB Carbon Steel Body with 13Cr Hardfacing
2. Metal-to-Metal Hard Seal – High Temperature Capability
3. Graphite Packing for High-Temperature Leak-Proof Operation
4. Flanged Connection – ASME B16.5 / ΣΕ 1092-1
5. API 623 Design Standard – Industry Proven Performance
6. Bolted Bonnet with Live-Loaded Studs
7. Hardfaced Disc and Seat – Superior Wear Resistance

Ανθεκτική βαλβίδα σφαιρικής φλάντζας από όλκιμο σίδηρο

Εφαρμογές

1. Steam Distribution Systems
2. Ελαιο & Αγωγοί φυσικού αερίου
3. Χημική ουσία & Petrochemical Processing
4. Power Generation
5. Συστήματα HVAC

Συσκευασία και αποστολή

Packing depends on the product type and quantity. Options include wooden crates or carton boxes with proper protection for flange faces. Shipment can be arranged by sea, σιδηροδρομικός, αέρας, or as per customer’s request.

Εταιρικό Προφίλ

LUOYANG DATANG ENERGY TECH CO., LTD is a professional industrial valve supplier, dedicated to providing reliable flow control solutions for fire protection, HVAC, επεξεργασία νερού, and industrial piping systems worldwide. All products are manufactured to international standards with UL/FM, CE, και ISO 9001 certifications. With over 10 years of experience, a modern facility of 80,000 m², και 200+ professional employees, we serve customers in 10+ countries with quality products, competitive pricing, and reliable delivery.

Ανθεκτική βαλβίδα σφαιρικής φλάντζας από όλκιμο σίδηρο

Όροι πληρωμής

T/T, L/C εν όψει, Western Union, PayPal, Apple Pay, Google Pay, Credit Card, και τα λοιπά.

FAQ

Q1: What is the difference between a globe valve and a gate valve?

ΕΝΑ: Globe valves are used for flow regulation and shut-off; they offer good throttling characteristics but result in a higher pressure drop. Gate valves are primarily used for full-open or full-closed (on/off) service; they have minimal pressure drop but are unsuitable for throttling. For applications requiring precise flow control, globe valves are the better choice.

Ε2: What is the difference between metal-seated and soft-seated globe valves?

ΕΝΑ: Metal-seated (metal-to-metal) globe valves withstand high temperatures (up to 425°C) and abrasive media, making them suitable for steam and high-temperature process applications. Soft-seated globe valves provide zero-leakage sealing but have a limited temperature range (typically ≤120°C), making them suitable for water and mild chemicals. This specific model features metal seating and is designed for high-temperature steam and oil & gas applications.

Ε3: Can this globe valve be used for steam?

ΕΝΑ: Ναί. This valve is designed specifically for steam applications and is rated for temperatures up to 425°C. The 13Cr hardened disc and graphite packing ensure reliable operation under steam service conditions. Please specify the steam application when ordering to confirm the correct configuration.

Q4: Is the installation direction of the globe valve important?

ΕΝΑ: Ναί. Globe valves are typically installed according to flow direction; the medium should enter from beneath the disc (i.e., the flow pushes the disc upward to open). This helps protect the seating surfaces and utilizes the medium’s pressure to assist with sealing when closed. A flow direction arrow is usually marked on the valve body; please ensure installation follows this arrow.

Q5: What are the advantages of 13Cr hardening?

ΕΝΑ: 13Cr stainless steel hardening (hard-facing) provides excellent wear, erosion, and galling resistance, making it particularly suitable for high-velocity steam and process fluids. It significantly extends the valve’s service life under harsh operating conditions and reduces the frequency of maintenance and replacement.

Ανθεκτική βαλβίδα σφαιρικής φλάντζας από όλκιμο σίδηρο