A needle valve is a widely used device in fluid control systems designed for precisely regulating the flow of liquids or gases through a pipe. It operates by using a slender, tapered needle-like plunger that fits into a seat to finely control flow. Needle valves are ideal for applications requiring precision flow regulation and reliable isolation. Needle valves provide excellent throttling capabilities and are particularly effective in situations where fine adjustments to flow rate are essential.
Needle valves are a crucial component in many systems due to their accuracy and efficiency, serving as an optimal solution for controlling flow in pipelines. Commonly found in industries such as water supply, oil and gas, chemical processes, and power generation, needle valves are essential for managing both small and large volumes of fluid with precision and security.
PR-FECT VALVES manufactures needle valves in a wide range of sizes, materials, and pressure ratings, ensuring compatibility with diverse industrial applications and offering advanced technical features such as precision-machined components and corrosion-resistant coatings for enhanced performance and durability.
SL. NO. | NEEDLE VALVE TYPES |
1 | NEEDLE VALVE |
2 | ANGLE NEEDLE VALVE |
3 | MULTI-PORT NEEDLE VALVE |
4 | CRYOGENIC NEEDLE VALVE |
5 | BRONZE NEEDLE VALVE |
6 | HIGH TEMPERATURE NEEDLE VALVE |
7 | Y-PATTERN NEEDLE VALVE |
8 | PVC / CPVC NEEDLE VALVE |
9 | EXTENSION SPINDLE NEEDLE VALVE |
PRODUCT DETAILS | |
Sizes | 1/4" to 4 " |
Pressure Class Ratings | Asme #150 to #4500 |
End Connection | Screwed, Socket Weld, Flanged, Butt-Weld |
Construction Types | O.S & Y. Rising Stem, Inside Screw, others upon request |
Salient Features | Rugged construction, Bellow SealMetal Seats, Back Seating, Stem Extension, Cryogenic, Locking Arrangements etc. |
Operator / Actuator | Handwheel, others upon request |
STANDARDS SPECIFICATIONS | |
Design & Manufacture | API 602, ASME B16.34, BS 5352 |
Face To Face | ASME B16.10, MFG Standard |
End Connections | ASME B16.11, ISO 7-1, BS 21 ASME B1.20.1, ASME B16.5/ B16.47 RF/FF/RTJ ASME 16.25, EN 1092 |
Testing | API 598, ASME B16.34 |
Fire safe testing | ISO 10497/ API 607, API 6FA |
Nace | NACE MR0175 / ISO 15156 and NACE MR0103 / ISO17945 |
Fugitive emission | ISO 15848-1, API 624 |
MATERIAL OF CONSTRUCTION | |
Body / Bonnet / Yoke | Carbon & Low Carbon Steel, Stainless Steel, Nickel alloys, High Temp Alloys, Duplex Stainless Steel, Exotic Materials |
Trim | Stainless Steel, Nickel alloys, Duplex Stainless Steel, Exotic Materials |
Seat | HF-Metal to Metal Seats, others upon request |
Stem Packing & Seals | PTFE/ RPTFE/ Special filled PTFE/Graphite/Graphoil |
Gaskets | PTFE/ RPTFE/ Special filled PTFE/Graphite/Graphoil/Spiral Wounded |
Fasteners | ASTM A193 Gr.B7/A194 Gr.2H, B7M/2HM, B8/8, B8M/8M, L7/4, B16/2H etc., |
Note : For Bigger sizes please contact PR-Fect Valves
SIZE RANGE CHART | ||||||||
NPS (Inches) | DN (mm) | CLASS 150 | CLASS 300 | CLASS 600 | CLASS 900 | CLASS 1500 | CLASS 2500 | CLASS 4500 |
1/4" | 8 | |||||||
1/2" | 15 | |||||||
1" | 25 | |||||||
1 ¼" | 32 | |||||||
1½" | 40 | |||||||
2" | 50 | |||||||
2½" | 65 | |||||||
3" | 80 | |||||||
3½" | 90 | |||||||
4" | 100 | |||||||
5" | 125 | |||||||
6" | 150 | |||||||
8" | 200 | |||||||
10" | 250 | |||||||
12" | 300 | |||||||
14" | 350 | |||||||
16" | 400 | |||||||
18" | 450 | |||||||
20" | 500 | |||||||
22" | 550 | |||||||
24" | 600 | |||||||
26" | 650 | |||||||
28" | 700 | |||||||
30" | 750 | |||||||
32" | 800 | |||||||
34" | 850 | |||||||
36" | 900 | |||||||
38" | 950 | |||||||
40" | 1000 | |||||||
42" | 1050 | |||||||
44" | 1100 | |||||||
46" | 1150 | |||||||
48" | 1200 | |||||||
50" | 1250 | |||||||
52" | 1300 | |||||||
54" | 1350 | |||||||
56" | 1400 | |||||||
58" | 1450 | |||||||
60" | 1500 | |||||||
62" | 1550 | |||||||
64" | 1600 | |||||||
66" | 1650 | |||||||
68" | 1700 | |||||||
70" | 1750 | |||||||
72" | 1800 | |||||||
74" | 1850 | |||||||
76" | 1900 | |||||||
78" | 1950 | |||||||
80" | 2000 | |||||||
82" | 2050 | |||||||
84" | 2100 | |||||||
86" | 2150 | |||||||
88" | 2200 | |||||||
90" | 2250 | |||||||
92" | 2300 | |||||||
94" | 2350 | |||||||
96" | 2400 | |||||||
98" | 2450 | |||||||
100" | 2500 | |||||||
102" | 2550 | |||||||
104" | 2600 | |||||||
106" | 2650 | |||||||
108" | 2700 | |||||||
110" | 2750 | |||||||
112" | 2800 | |||||||
114" | 2850 | |||||||
116" | 2900 | |||||||
118" | 2950 | |||||||
120" | 3000 | |||||||
122" | 3050 | |||||||
124" | 3100 | |||||||
126" | 3150 | |||||||
128" | 3200 | |||||||
130" | 3250 | |||||||
132" | 3300 | |||||||
134" | 3350 | |||||||
136" | 3400 | |||||||
138" | 3450 | |||||||
140" | 3500 | |||||||
142" | 3550 | |||||||
144" | 3600 | |||||||
146" | 3650 | |||||||
148" | 3700 | |||||||
150" | 3750 | |||||||
152" | 3800 | |||||||
154" | 3850 | |||||||
156" | 3900 | |||||||
158" | 3950 | |||||||
160" | 4000 | |||||||
162" | 4050 | |||||||
164" | 4100 | |||||||
166" | 4150 | |||||||
168" | 4200 | |||||||
170" | 4250 | |||||||
172" | 4300 | |||||||
174" | 4350 | |||||||
176" | 4400 | |||||||
178" | 4450 | |||||||
180" | 4500 | |||||||
182" | 4550 | |||||||
184" | 4600 | |||||||
186" | 4650 | |||||||
188" | 4700 | |||||||
190" | 4750 | |||||||
192" | 4800 | |||||||
194" | 4850 | |||||||
196" | 4900 | |||||||
198" | 4950 | |||||||
200" | 5000 | |||||||
202" | 5050 | |||||||
204" | 5100 | |||||||
206" | 5150 | |||||||
208" | 5200 | |||||||
210" | 5250 | |||||||
212" | 5300 | |||||||
214" | 5350 | |||||||
216" | 5400 | |||||||
218" | 5450 | |||||||
220" | 5500 | |||||||
222" | 5550 | |||||||
224" | 5600 | |||||||
226" | 5650 | |||||||
228" | 5700 | |||||||
230" | 5750 | |||||||
232" | 5800 | |||||||
234" | 5850 | |||||||
236" | 5900 | |||||||
238" | 5950 | |||||||
240" | 6000 | |||||||
242" | 6050 | |||||||
244" | 6100 | |||||||
246" | 6150 | |||||||
248" | 6200 | |||||||
250" | 6250 |