DN15-PN64-Ferrule Needle Valve

Valve Type Needle Valve
Nominal Size DN15 (1/2 inch; ferrule size typically 12mm or 1/2″)
Pressure Rating PN64 (64 bar / 6.4 MPa)
End Connection Twin Ferrule / Double Ferrule (both ends)
Body Material Stainless Steel 316 (SS316) as standard; 304 / alloy steel optional
Operation Manual with handle or handwheel
Application Instrumentation lines, sampling systems, flow regulation or shut-off for high-pressure gas or liquid lines

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DN15 – PN64 – Ferrule Needle Valve

Technical Data Sheet

General Information

Item	설명
밸브 유형	Needle Valve
공칭 크기	DN15 (1/2 inch; ferrule size typically 12mm or 1/2″)
압력 등급	PN64 (64 bar / 6.4 MPa)
End Connection	Twin Ferrule / Double Ferrule (both ends)
본체 재질	Stainless Steel 316 (SS316) as standard; 304 / alloy steel optional
작업	Manual with handle or handwheel
애플리케이션	Instrumentation lines, sampling systems, flow regulation or shut-off for high-pressure gas or liquid lines

Design & Manufacturing Standards

기준	설명
Design Code	ISO 17292 / Referencing API 6D and ASME B16.34 (needle valve section)
Ferrule Connection Dimensions	ISO 8434-1 / DIN 2353 / GB/T 3733 (twin ferrule)
Body Configuration	Straight pattern or angle pattern (as required)
Pressure-Temperature Rating	ASME B16.34
Inspection & Testing	API 598 / ISO 5208
Nut Thread Standard	UNF or metric thread (ferrule nut)
Packing Material	PTFE / Graphite / Graphite + PTFE

Main Materials (Typical)

요소	Standard Material	Optional Materials
몸	Stainless Steel 316 / 316L	Stainless Steel 304, Alloy Steel 4140, Hastelloy
줄기	Stainless Steel 316	SS316 hard chrome plated, 17-4PH
Stem Packing	PTFE	Flexible graphite, PTFE+graphite, PEEK
Stem Tip	Needle type (sharp edge or blunt), SS316	Hardfaced (Stellite)
Ferrule (front & back)	Stainless Steel 316	Stainless Steel 304, Alloy Steel
Ferrule Nut	Stainless Steel 316	Stainless Steel 304
Handle / Handwheel	Stainless steel or aluminum alloy	Carbon steel chrome plated
Fasteners	Stainless Steel A193 B8	Alloy Steel B7

Outline Dimensions & Weight (Typical values – may vary by manufacturer)

Dimension Parameter	Value (Straight pattern, twin ferrule)
Valve Length (end-to-end) L	Approx. 65 – 85 mm (depending on design)
Ferrule Tube O.D.	12 mm (common for DN15) or 1/2″ (12.7 mm)
Overall Height (handwheel) H	Approx. 70 – 90 mm (higher when handwheel raised)
Handwheel Diameter	Approx. 40 – 50 mm
Hex Size (body)	Approx. 22 mm
Valve Weight	Approx. 0.3 – 0.5 kg

Dimensions above are typical references. Final dimensions to be confirmed with manufacturer’s drawing.

Pressure-Temperature Rating (Stainless Steel 316 body)

Temperature (°C)	Max. Working Pressure (bar)	비고
-20 ~ 38	64 (PN64 rating)	Ambient
100	56
150	48
200	42
250	36
300	28
350	22
400	16

Note: PN64 is the maximum allowable working pressure at ambient temperature. As temperature increases, pressure must be derated per ASME B16.34. PTFE packing has a maximum service temperature of approx. 200°C; graphite packing is required for higher temperatures.

Performance Data

매개변수	Value
압력 등급	PN64 (64 bar @ 38°C)
Shell Test Pressure (water)	96 bar
Seat Test Pressure (water)	70 bar
Air Seat Test Pressure	6 bar
Allowable Differential Pressure	Full rated pressure
Leakage Rate	Metal stem tip: Minimal leakage (per API 598) Soft tip (PTFE/PEEK): Zero leakage
Temperature Range (PTFE packing)	-20°C ~ +200°C
Temperature Range (Graphite packing)	-20°C ~ +400°C
Suitable Media	Water, oil, gas, steam, non-corrosive and mildly corrosive media
Flow Characteristic	Linear
밸브 유형	Needle regulating / shut-off valve
End Connection	Twin ferrule – suitable for stainless steel or copper tubing

주요 특징

Needle stem tip – Provides precise flow regulation for very low flow rates
Twin ferrule connection – No welding required; reliable leak-tight seal; easy disassembly and maintenance
Stainless steel body – Excellent corrosion resistance
Blow-out proof stem – Ensures safety under high pressure
Replaceable packing – Easy online adjustment or replacement
Multiple stem tip options – Soft seat (PTFE/PEEK) or metal hard seat (sharp edge / blunt)
Bi-directional sealing – Can withstand pressure from both directions (arrow indicates recommended flow direction)

Installation & Operation Instructions

Ferrule installation – Insert tube fully into the ferrule socket. Hand-tighten the nut, then tighten with a wrench 1 – 1.25 turns from finger-tight (follow manufacturer’s instructions).
Flow direction – An arrow on the body indicates recommended flow direction. The valve can be used bidirectionally, but pressure drop may differ slightly.
작업 – Turn the handle clockwise to close, counterclockwise to open. Needle valves are designed for flow regulation; avoid long-term operation in fully closed or barely open positions.
Maintenance – If external leakage occurs, carefully tighten the packing nut after depressurizing. If leakage persists, replace the packing.

Ordering Information

Please provide the following when ordering:

Valve size (DN15), pressure rating (PN64)
End connection: Twin ferrule, tube O.D. (e.g., 12mm or 1/2″)
Body material (SS316 / SS304 / other)
Stem tip sealing type (metal needle tip / PTFE soft tip)
Packing material (PTFE / graphite)
Valve configuration (straight pattern / angle pattern)
Media name, temperature, and pressure
Additional accessories (panel mounting nut, dust cap, etc.)

보증:

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