Best Cheap Stellite Trim Gate Valve Suppliers – Forged Steel Needle Valve – C. Z. IT

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Best Cheap Stellite Trim Gate Valve Suppliers – Forged Steel Needle Valve – C. Z. IT Detail:

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High quality Needle Valve can operate manually or automatically. Manually operated needle valves use the handwheel to control the distance between the plunger and the valve seat. When the handwheel is turned in one direction, the plunger is lifted to open the valve and allow fluid to pass through. When the handwheel is turned in the other direction, the plunger moves closer to the seat to decrease the flow rate or close the valve.

Automated needle valves are connected to a hydraulic motor or an air actuator that automatically opens and closes the valve. The motor or actuator will adjust the plunger’s position according to timers or external performance data gathered when monitoring the machinery.

Both manually operated and automated Needle valves provide precise control of the flow rate. The handwheel is finely threaded, which means it takes multiple turns to adjust the position of the plunger. As a result, a needle valve can help you better regulate the flow rate of fluid in the system.

Needle Valve Features Material and Pictures

1. Needle valve

2. Made of Stainless steel ASTM A479-04(Grade 316)

3.Threaded ends according to ASME B 1.20.1(NPT)

4. Max.Working Pressure 6000 psi at 38 °C

5.Working Temperature -54 to 232°C

6.Safety bonnet lock prevents accidental lossening.

7.Back seating design protects the packing in fully open position.

N°	Name	Material	Surface Treatment
1	Grib Scres Handle	SS316
2	Handle	SS316
3	Stem Shaft	SS316	Nitrogen Treatment
4	Dust Cap	Plastic
5	Packing nut	SS316
6	Lock Nut	SS316
7	Bonnet	SS316
8	Washer	SS316
9	Stem Packing	PTFE+Graphite
10	Wahser	SS316
11	Lock Pin	SS316
12	O ring	FKM
13	Body	Grade 316

Needle Valve Dimension Generals

Ref	Size	PN(psi)	E	H	L	M	K	WEIGHT(Kg)
225N 02	1/4″	6000	25.5	90	61	55	4	0.365
225N 03	3/8″	6000	25.5	90	61	55	4	0.355
225N 04	1/2″	6000	28.5	92	68	55	5	0.440
225N 05	3/4″	6000	38	98	76	55	6	0.800
225N 06	1″	6000	44.5	108	85	55	8	1.120

Needle Valve Head Losses Diagram

Needle Valves Pressure Temperature Rating

Kv VALUES

KV=Flow rate of water in cubic meter per hour(m³/h) that will generate a pressure drop of 1 bar across the valve.

size	1/4″	3/8″	1/2″	3/4″	1″
m³/h	0.3	0.3	0.63	0.73	1.4

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