SVH Series High Pressure Needle Valve – Hy-Lok Korea

What is SVH Needle Valve?

The SVH Series is a line of high pressure needle valves manufactured by Hy-Lok, designed for accurate shut-off and flow regulation of gas, steam, and liquid media in ultra-high-pressure systems.

The valve is widely used in:

• Instrumentation systems
• Oil & gas applications
• Chemical plants
• High-pressure measurement systems

---

Key Features of SVH Series Needle Valve

• In-line pattern design
• Extremely precise flow regulation
• Pressure rating up to 10,000 PSI
• Leak-tight sealing with PTFE packing
• Long service life and excellent corrosion resistance
• Available with metal seat or soft seat options

---

Technical Specifications

Maximum Operating Pressure

• Up to 10,000 psig (690 bar) at 100℉ (38℃)

Operating Temperature Range

• From -65℉ (-54℃) to 1000℉ (537℃)

Materials

• Stainless Steel
• Alloy 400 (Monel)
• Duplex Stainless Steel

Sealing Options

• PTFE Packing for leak-tight sealing
• Metal-to-Metal Seat
• PCTFE Soft Seat (Bubble Tight)

---

Structure of SVH High Pressure Needle Valve

Valve Body

• Precision-machined construction
• Suitable for high-pressure and harsh environments

Needle Stem

• Tapered needle design
• Provides accurate flow adjustment

PTFE Packing

• Ensures reliable sealing
• Minimizes leakage of gas and liquids

Valve Seat

• Metal seat for high-temperature applications
• PCTFE soft seat for bubble-tight shutoff

---

Working Principle

The valve operates by:

• Rotating the handle to move the needle stem
• Creating a small opening to regulate flow
• Fully sealing when the stem closes onto the seat

👉 Fine-thread design enables extremely stable and precise flow control.

---

Applications of SVH Series

The SVH needle valve is widely used in:

• Instrument isolation systems
• Industrial gas systems
• High-pressure steam systems
• Petrochemical plants
• Chemical processing lines
• Precision flow control systems

---

Advantages of Hy-Lok SVH Needle Valve

• Withstands ultra-high pressure
• Bubble-tight sealing performance
• Excellent corrosion resistance
• Precise flow adjustment
• Long service life with low maintenance
• Compatible with multiple tubing systems

---

About Hy-Lok Korea

Hy-Lok is a globally recognized manufacturer specializing in:

• Instrument Valves
• Tube Fittings
• High Pressure Valves

Its products are widely used in oil & gas, chemical, and energy industries worldwide.

---

Technical Documents

• Product Catalog PDF
• Installation & Operation Manual
• GA Drawings / 3D STEP Drawings

👉 Contact us for detailed technical documentation:
📧 sales1@pm-e.vn

---

Authorized Distributor in Vietnam

THEGIOIVAN.NET
📞 +84 903 601 875
📧 sales1@pm-e.vn

We supply many industrial valve brands:
Hy-Lok, S-LOK, KSPC, KITZ, Swissfluid, VENN, TOYO, LESER, EBRO, TANKTECH, and more.

---

Conclusion

The SVH Series High Pressure Needle Valve by Hy-Lok Korea is an ideal solution for systems requiring ultra-high pressure resistance and precise flow regulation. With pressure capability up to 10,000 PSI and bubble-tight sealing, it is highly suitable for oil & gas, chemical, and industrial instrumentation applications.