Description
Needle Valve Specification
|
Materials |
CS, SS, Monel, Hastalloy, Duplex and High Nickel alloys |
|
Seat |
Metal or Soft |
|
Connections |
Thread, Weld or Tube End |
|
Design |
Forged Body with Inline/Straight or Angle Pattern, Integral Bonnet Design |
|
Size |
1/8 to 1”, Custom Sizes available on request |
|
End Connection |
Male and Female NPT, BSPT,BSPP,SAE, Socket Weld (SW) or Dual Ferrule Tube Connections, Female to Male, Female to Female, Male to Male |
|
Working Pressure |
Up to 6000 PSIG
Needle Valves are also available that can handle higher pressure |
|
Temperature Rating |
PTFE 450F,(232C)/ Grafoil 700 F(371C) |
Needle Gauge Valve Application
Petrochemicals
Biofuels
Textiles
Sugar
Wastewater treatment
Food
Chemicals
Pharmaceutical
Construction of Needle Valve
|
Component |
Valve Body Materials |
||
|
316SS |
Alloy 400 |
C-276 |
|
|
1 Bar handle |
Anodized aluminum |
||
|
1A Set screw |
High strength alloy steel (Grade 13.9) |
||
|
2 Square long handle |
Powder metallurgy 316SS |
||
|
2A Set screw |
High strength alloy steel (Grade 13.9) |
||
|
3 Dust cap |
Plastic |
||
|
6 Packing Gland |
316SS |
Alloy 400 |
C-276 |
|
7 Gland lock nut |
316SS |
Alloy 400 |
C-276 |
|
8 Packing Gland |
316SS |
Alloy 400 |
C-276 |
|
9 Packing |
PTFE / graphite |
||
|
10 Shroud |
316SS |
Alloy 400 |
C-276 |
|
11 Stem |
316SS |
Alloy 400 |
C-276 |
|
12 Spool |
316SS |
Alloy 400 |
C-276 |
|
13 Body |
316SS |
Alloy 400 |
C-276 |
|
14 Locking pin |
316SS |
Alloy 400 |
C-276 |
Needle Valve Dimension standards
|
End Connections |
Size (Inch) |
Orifice
in. (mm)
|
Dimensions, in. (mm) |
|||||||||
|
Inlet/Outlet |
A |
B |
C |
D |
H |
E |
E1 |
E2 |
J |
F |
||
|
Hi-Tek (Inch) tube fittings |
1/8 in |
2 |
65.2 |
32.6 |
32.6 |
30.6 |
32.6 |
25.4 |
12.7 |
25.47 |
67 |
44 |
|
1/4 in |
4 |
68.6 |
34.3 |
34.3 |
32.3 |
34.3 |
25.4 |
12.7 |
25.47 |
67 |
44 |
|
|
3/8 in |
6 |
70.4 |
35.2 |
35.2 |
33.2 |
35.2 |
25.4 |
12.7 |
25.47 |
67 |
44 |
|
|
1/2 in |
6 |
76.3 |
38.2 |
38.2 |
38.2 |
38.2 |
25.4 |
12.7 |
25.47 |
67 |
44 |
|
|
1/2 in |
8 |
79.2 |
39.6 |
39.6 |
35.6 |
39.6 |
33 |
15 |
33 |
77 |
70 |
|
|
3/4 in |
13 |
93.7 |
46.9 |
46.9 |
42.9 |
46.9 |
28.6 |
24 |
28.6 |
90 |
94 |
|
|
1 in |
13 |
102.3 |
51.2 |
51.2 |
47.2 |
51.2 |
32 |
16 |
32 |
90 |
94 |
|
|
1 in |
17 |
128.4 |
64.2 |
64.2 |
58.2 |
64.2 |
64 |
32 |
64 |
122 |
125 |
|
|
Hi-Tek (MM) tube fittings |
6 |
4 |
68.6 |
34.3 |
34.3 |
32.3 |
34.3 |
25.4 |
12.7 |
25.4 |
67 |
44 |
|
8 |
6 |
70.4 |
35.2 |
35.2 |
33.2 |
35.2 |
25.4 |
12.7 |
25.4 |
67 |
44 |
|
|
10 |
6 |
76.3 |
38.2 |
38.2 |
38.2 |
38.2 |
25.4 |
12.7 |
25.4 |
67 |
44 |
|
|
12 |
6 |
76.3 |
38.2 |
38.2 |
38.2 |
38.2 |
25.4 |
12.7 |
25.4 |
67 |
44 |
|
|
14 |
6 |
76.3 |
38.2 |
38.2 |
38.2 |
38.2 |
25.4 |
12.7 |
25.4 |
67 |
44 |
|
|
14 |
8 |
79.2 |
39.6 |
39.6 |
35.6 |
39.6 |
33 |
15 |
33 |
77 |
70 |
|
|
18 |
8 |
79.2 |
39.6 |
39.6 |
35.6 |
39.6 |
33 |
15 |
33 |
77 |
70 |
|
|
18 |
13 |
93.7 |
46.9 |
46.9 |
42.9 |
46.9 |
28.6 |
24 |
28.6 |
90 |
94 |
|
|
22 |
13 |
93.7 |
46.9 |
46.9 |
42.9 |
46.9 |
28.6 |
24 |
28.6 |
90 |
94 |
|
|
25 |
17 |
128.4 |
64.2 |
64.2 |
58.2 |
64.2 |
64 |
32 |
64 |
122 |
125 |
|
Standards Of Needle Valve
Test & Inspection according to : API 6D / API 598
Design & Manufacture according to : BS 1868
Pressure & Temperature according to : ASME B16.34
Face to Face according to : ASME B16.10
Visual Inspection according to : MSS SP-55
Flange Dimensions according to : ASME B16.5
Marking according to : MSS SP-25
When to use needle valve?
This Valves used with higher differential pressure, and our valve standard range covers a pressure range up to PN40, and on request up to PN100. It can be manually actuated or can be controlled by electrical, hydraulic or pneumatic actuation.
Needle Valve Pressure Range
|
Material Name |
316SS |
Alloy 400 |
Alloy 20 |
Alloy 600 |
Alloy C-276 |
Titanium |
Material Name |
316SS |
|
Temperature 315°C(600 °F) |
Working pressure≤ ≥ 6000Psig(bar) |
≥ 10000Psig(bar) |
||||||
|
–65 (–53) to 100 (37) |
6000(413) |
5000(344) |
5000(344) |
6000(413) |
6000(413) |
3570(245) |
–65 (–53) to 100 (37) |
10000(689) |
|
200(93) |
5160(355) |
4400(303) |
4640(319) |
5600(385) |
6000(413) |
3110(214) |
200(93) |
9290(640) |
|
250(121) |
4910(338) |
4260(293) |
4500(310) |
5460(376) |
6000(413) |
2840(195) |
250(121) |
8840(609) |
|
300(148) |
4660(321) |
4120(283) |
4360(300) |
5320(366) |
6000(413) |
2570(177) |
300(148) |
8390(578) |
|
350(176) |
4470(307) |
4050(279) |
4185(288) |
5220(359) |
5975(411) |
2385(164) |
350(176) |
8045(554) |
|
400(204) |
4280(294) |
3980(274) |
4010(276) |
5120(352) |
5880(405) |
2200(151) |
400(204) |
7705(530) |
|
450(232) |
4130(284) |
3970(273) |
3955(272) |
5030(346) |
5710(393) |
2055(141) |
450(232) |
7435(512) |
|
500(260) |
3980(274) |
3960(272) |
3900(268) |
4940(340) |
5540(381) |
1885(129) |
500(260) |
7165(493) |
|
600(315) |
3760(259) |
/ |
3790(273) |
4780(329) |
5040(347) |
1625(111) |
600(315) |
6770(466) |
|
650(343) |
3700(254) |
/ |
3750(258) |
4700(323) |
4905(337) |
/ |
650(343) |
6660(458) |
|
700(371) |
3600(248) |
/ |
3710(255) |
4640(319) |
4730(325) |
/ |
700(371) |
6480(446) |
|
750(398) |
3520(242) |
/ |
3665(252) |
4430(305) |
4430(305) |
/ |
750(398) |
6335(436) |
|
800(426) |
3460(236) |
/ |
3600(248) |
4230(291) |
4230(291) |
/ |
800(426) |
6230(429) |
|
850(454) |
3380(232) |
/ |
/ |
4060(279) |
4060(279) |
/ |
850(454) |
6085(419) |
|
900(482) |
3280(225) |
/ |
/ |
3745(258) |
3745(258) |
/ |
900(482) |
5905(406) |
|
950(510) |
3220(221) |
/ |
/ |
2725(187) |
3220(221) |
/ |
950(510) |
5795(399) |
Testing of Needle Valve
Each set of HI-TEK threaded Needle Valve has been tested in the factory with nitrogen at 1000Psig (69bar), and the maximum allowable leakage rate of the valve is 0.1 standard cm³/m in. The shell test is based on the use of leak detection fluid, and there is no detectable leak.
Note: Packing may need to be adjusted during the service life of the valve. Valves that have not been opened for a period of time will have a higher initial force torque.
