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科瑞流體控制為 IMI Norgren、Parker Hannifin、Flojet/Xylem 等歐美工業流體控制品牌之台灣授權代理商,提供 Parker 針閥完整選型諮詢與技術支援服務。
| Product Type | Needle Valve (針閥) | Maximum Operating Pressure |
5,000 psig (345 bar)
316 Stainless Steel: 5,000 psig (345 bar)
Brass, Steel & Monel: 3,000 psig (207 bar) |
| Actuation Type | Manual (手動旋鈕 / T-bar ) | Body Type / Pattern | Inline (直通) Angle (直角) |
| Body Material | 316 Stainless Steel, Brass, Steel, Monel® Alloy 400 | Temperature Ratings |
• SS & Monel: -65°F to 450°F (-54°C to 232°C)
• Brass: -65°F to 400°F (-54°C to 204°C)
• Steel: -20°F to 350°F (-29°C to 177°C)
• PCTFE Stem Tip: Max 350°F (177°C)
|
| Orifice Size |
0.078" (2.0 mm) 0.093" (2.4 mm) 0.176" (4.5 mm) 0.228" (5.8 mm) 0.281" (7.1 mm) 0.312" (7.9 mm)
|
Flow Coefficient (Cv) |
0.12 ~ 1.90
Inline 直通型: 0.12 ~ 1.29
Angle 直角型: 0.14 ~ 1.90 |
| Stem Type |
R-Stem (Blunt 30°) N-Stem (Needle 2-1/2°) K-Stem (PCTFE)
|
Stem Packing & Seals |
PTFE Packing (標準) Nitrile (NBR) Fluorocarbon (FKM) Ethylene Propylene (EPR)
|
| Connection 1 Size: | 1/4"-1/2", Two Ferrule Compression, Single Ferrule Compression, NPT F, NPT M | Connection 2 Size: | 1/4"-1/2", Two Ferrule Compression, Single Ferrule Compression, NPT F, NPT M |
Product Description
Choice of three stem types:
R-Stem – All metal, blunt stem tip
N-Stem – All metal, tapered needle stem tip
K-Stem – PCTFE stem tip
Differential hardness between the strain hardened stem and cold formed body threads provides improved cycle life
Choice of PTFE packing or elastomeric O-ring stem seals
316 Stainless Steel, Steel, Brass and Monel® Alloy 400 construction
Inline and angle patterns
Wide variety of US Customary and SI ports
Panel mountable
100% factory tested
Optional color coded handles
|
4Z
Port 1 |
- |
(4F)
Port 2 |
- |
V4L
Series |
K
Stem |
- |
BN
Seal |
- |
SS
Material |
| Ports 1 & 2 (進出口接頭) | Valve Series (系列) | Stem Type (閥針形式) | Stem Seal (密封材質) | Body Material (材質) |
|---|---|---|---|---|
| 2A, 2Z (1/8") 2F, 2M (1/8") 4A, 4Z (1/4") |
V2L Inline V2A Angle |
R: Blunt (30°)![]() N: Needle (2.5°) ![]() K: PCTFE ![]() |
(Blank) PTFE BN Nitrile V Viton EPR EPDM |
SS 316SS B Brass S Steel M Monel |
| 2A, 2Z, 2F, 2M (1/8") 4A, 4Z, 4M, 4W (1/4") 6A, 6Z (3/8") M3A, M3Z (3mm) | M6A, M6Z (6mm) M8A, M8Z (8mm) |
V4L Inline V4A Angle |
|||
| 4F (1/4") | 6A, 6Z, 6M (3/8") 8A, 8Z (1/2") | M10A, M10Z (10mm) |
V6L Inline V6A Angle |
|||
| 6F (3/8") | 8A, 8Z, 8M (1/2") M10A, M10Z (10mm) | M12A, M12Z (12mm) |
V8L Inline V8A Angle |
|||
| 8F, 8W (1/2") | 10A, 10Z (5/8") 12A, 12Z (3/4") |
V12L Inline V12A Angle |
| Inline 直通型 (L)
|
Angle 直角型 (A)
|
| 系列 | 適用規格 | 孔徑 | Cv | 標配手柄 |
|---|---|---|---|---|
| V2 | 1/8", 1/4" | 2.0~2.4 mm | 0.12~0.13 | 圓柄 (Ø 23.9mm) |
| V4 | 1/8"~3/8" (3~8mm) | 2.0~4.5 mm | 0.12~0.45 | 圓柄 (Ø 35.1mm) |
| V6 | 1/4"~1/2" (10mm) | 5.8 mm | 0.55~0.80 | 圓柄 (Ø 46mm) |
| V8 | 3/8"~1/2" (10~12mm) | 7.1~7.9 mm | 0.97~1.29 | T-bar* |
| V12 | 1/2"~3/4" | 7.9 mm | 1.05~1.29 | T-bar* |
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Parker Instrumentation Products Division - Catalog Download HUB
Needle Valves Catalog--4110-NV
V Series Needle Valve Installation Instructions - INI-203
V Series Needle Valve Maintenance Instructions - MI-103
VL Series Needle Valve Maintenance Instructions - MI-136