Internal thread needle valve

Home / Products / Stainless Steel Needle Valves / Internal thread needle valve

Internal thread needle valve

The 316L dual-female-thread needle valve is an integrated throttling and shut-off valve custom-engineered for industrial precision fluid control and high-pressure instrumentation piping. Distinct from general-purpose valves, it excels in three core performance areas: precise micro-flow regulation, zero-leakage shut-off, and universal threaded compatibility. The valve body is forged from a single solid 316L stainless steel bar without welds, featuring standard female threaded ports at both ends; this eliminates the need for adapters or reducers, allowing for direct inline installation into various threaded process pipelines. Utilizing a high-precision conical needle sealing mechanism, it effectively resolves common industry issues such as difficult flow control, unstable low-pressure micro-flow, high-pressure leakage, and limited thread compatibility. It serves as a specialized, essential component for on/off control and micro-flow regulation in applications including chemical sampling, high-purity gas systems, new energy skid-mounted units, and laboratory precision fluid systems.

  • Description
  • Contact Us

Order Model

Size

D

D1

L

H

S

W

NVF-02OD

1/4LOK

55 

3 

65 

74 

22 

4 

NVF-03OD

3/8LOK

55 

5 

65 

74 

22 

4 

NVF-04OD

1/2LOK

55 

6 

77 

96 

28 

5 

NVF-06OD

3/4LOK

55 

7 

77 

96 

28 

5 

NVF-08OD

1"LOK

75 

10 

96 

119 

40 

7 

 NVF-6OD

6mmLOK

55 

3 

65 

74 

22 

4 

 NVF-8OD

8mmLOK

55 

4 

65 

74 

22 

4 

NVF-10OD

10mmLOK

55 

5 

65 

74 

22 

4 

NVF-12OD

12mmLOK

55 

6 

77 

96 

28 

5 

NVF-14OD

14mmLOK

55 

7 

77 

96 

28 

5 

NVF-16OD

16mmLOK

55 

7 

77 

96 

28 

5 

NVF-18OD

18mmLOK

55 

7 

77 

96 

28 

5 

NVF-20OD

20mmLOK

75 

10 

92 

117 

38 

7 

NVF-22OD

22mmLOK

75 

10 

92 

117 

38 

7 

NVF-25OD

25mmLOK

75 

10 

96 

119 

40 

7 

About Us
Ningbo Keshengli Stainless Steel Valve Co., Ltd.
Ningbo Keshengli Stainless Steel Valve Co., Ltd.

It is Internal thread needle valve Suppliers and Internal thread needle valve Factory.Our company specializes in the manufacturing and sales of stainless steel pipe fittings and valves in national (GB), American (ANSI/ASME), and British (BS) standards. We are equipped with advanced CNC machining centers, material testing and heat treatment facilities, a skilled technical team, and a robust production workforce. With a sound quality management system and excellent after-sales service, we sincerely serve customers worldwide.

Our main products include: ferrule-type fittings, threaded fittings, instrument fittings, instrument needle valves, instrument ball valves, ferrule needle valves, ferrule ball valves, compact high-pressure instrument needle valves, compact high-pressure instrument ball valves, and high-pressure check valves. The primary material is SS316 stainless steel. These products are widely used in petrochemical, petroleum, electric power, pharmaceutical, food, papermaking, marine, and general machinery industries.

We strictly control product quality at every stage and are committed to delivering superior quality through advanced technology and professional management. Adhering to the business philosophy of "Quality First, Customer Supreme, Integrity Foremost," we strive to build the "NB-KSL" brand image, better serve our customers, and work together with you to create a prosperous future.

Certificate Of Honor
News