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316L Stainless Steel Compression fitting external thread elbow

Home / Products / Stainless Steel Tube Fittings / Tube To Male Pipe / 316L Stainless Steel Compression fitting external thread elbow

316L Stainless Steel Compression fitting external thread elbow

Key Advantages of 316L Stainless Steel Compression Male Elbows
The 316L stainless steel compression male elbow is an essential directional fitting in instrumentation systems. It is primarily used to connect tubing at a 90-degree angle to equipment with internal threaded ports, such as pressure gauges, sensors, and valves.

1. Compact 90° Directional Layout
Space Optimization: In cramped enclosures or dense piping networks, the elbow design allows tubing to turn close to the equipment wall. This drastically saves installation space and creates a cleaner, more professional system layout.
Stress Reduction: Compared to forcibly bending the tubing itself, using a precision-forged elbow eliminates mechanical stress at the turn, preventing tube fatigue and potential failure.

2. Superior Durability of 316L Material
Corrosion Resistance Pioneer: The “L” (low carbon) grade of 316 stainless steel excels in resisting pitting and crevice corrosion. Its service life far exceeds standard 304 stainless steel, especially in chloride-rich (coastal) environments or aggressive chemical media.
High-Pressure & High-Temperature Resilience: It maintains material stability under extreme thermal cycling, ensuring the fitting body does not crack due to thermal expansion and contraction.

3. Precision Forged Body for Maximum Strength
One-Piece Construction: High-quality elbows are manufactured using a forged body process rather than being welded or assembled. This forged structure eliminates internal blowholes and porosity, ensuring high burst strength under high-pressure conditions (up to 6000 psi).
Smooth Internal Flow: The internal flow path is precision-machined with a smooth transition at the corner to minimize fluid turbulence and pressure drop.

4. Gas-Tight “Double Insurance” Sealing
Compression End: The classic double ferrule design uses the front ferrule for sealing and the back ferrule for gripping, providing a gas-tight, metal-to-metal seal.
Threaded End: The male thread end (NPT, BSPT, etc.) is precision-ground. When used with thread sealant or PTFE tape, it achieves a rock-solid connection that resists long-term operational vibrations.

5. Easy Installation with Anti-Galling Design
Hardened Threads: The threads undergo a surface hardening process to effectively prevent thread galling during installation, allowing for multiple disassemblies and reassemblies.
Standardized Assembly: No special tools or welding required. A simple wrench tightened to the specified number of turns ensures consistent and safe connections every time.

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(METRIC)

CATALOG NUMBER

T TUBE O.D.

PT-NPT MALE PIPE SIZE

A

B

C

D

E

F

K

G

H

ME-3-1

3 

1/8

25.6 

10 

19.1 

13.5 

2.4 

12.7 

4.8 

12 

18.6 

ME-3-2

3 

1/4

25.6 

14 

23.2 

13.5 

2.4 

15 

7.1 

12 

18.6 

ME-4-1

4 

1/8

25.8 

10 

19.1 

13.7 

3 

12.7 

4.8 

12 

19.1 

ME-4-2

4 

1/4

25.8 

14 

23.2 

13.7 

3 

15 

7.1 

12 

19.1 

ME-6-1

6 

1/8

27.4 

10 

19.1 

15.8 

4.8 

12.7 

4.8 

14 

19.6 

ME-6-2

6 

1/4

27.4 

14 

23.2 

15.8 

4.8 

15 

7.1 

14 

19.6 

ME-6-3

6 

3/8

302 

14 

26 

15.8 

4.8 

17.5 

9.5 

14 

22.4 

ME-6-4

6 

1/2

32.2 

19 

33 

15.8 

4.8 

20.6 

11.9 

14 

24.4 

ME-8-1

8 

1/8

29 

10 

21.1 

16.7 

6.4 

15 

4.8 

16 

21.3 

ME-8-2

8 

1/4

29 

14 

23.2 

16.7 

6.4 

15 

7.1 

16 

21.3 

ME-8-3

8 

3/8

30.8 

14 

26 

16.7 

6.4 

17.5 

9.5 

16 

23.1 

ME-8-4

8 

1/2

32.8 

19 

33 

16.7 

6.4 

20.6 

11.9 

16 

25.1 

ME-10-1

10 

1/8

31.5 

10 

21.9 

19.6 

7.9 

17 

4.8 

19 

23.9 

ME-10-2

10 

1/4

31.5 

14 

26 

19.6 

7.9 

17.5 

7.1 

19 

23.9 

ME-10-3

10 

3/8

31.5 

14 

26 

19.6 

7.9 

17.5 

9.5 

19 

23.9 

ME-10-4

10 

1/2

33.5 

19 

33 

19.6 

7.9 

20.6 

11.9 

19 

25.9 

ME-12-1

12 

1/8

36.7 

10 

25.7 

23.8 

9.5 

21 

4.8 

22 

25.9 

ME-12-2

12 

1/4

36.7 

14 

28 

23.8 

9.5 

20.6 

7.1 

22 

25.9 

ME-12-3

12 

3/8

36.7 

14 

28 

23.8 

9.5 

20.6 

9.5 

22 

25.9 

ME-12-4

12 

1/2

36.7 

19 

33 

23.8 

9.5 

20.6 

11.9 

22 

25.9 

ME-12-6

12 

3/4

40.5 

19 

38.8 

23.8 

9.5 

28 

15.9 

22 

29.7 

ME-12-8

12 

1"

45.6 

22 

46.5 

23.8 

9.5 

34.5 

21.5 

22 

34.8 

ME-14-3

14 

3/8

38.7 

14 

29 

24.8 

11.1 

23 

9.5 

27 

27.9 

ME-14-4

14 

1/2

38.7 

17 

32 

24.8 

11.1 

23 

11.9 

27 

27.9 

ME-14-6

14 

3/4

40.5 

19 

38.8 

24.8 

11.1 

28 

15.9 

27 

29.7 

ME-15-3

15 

3/8

38.3 

14 

29 

24.4 

11.9 

23 

9.5 

27 

27.9 

ME-15-4

15 

1/2

38.3 

17 

32 

24.4 

11.9 

23 

11.9 

27 

27.9 

ME-15-6

15 

3/4

40.1 

19 

38.8 

24.4 

11.9 

28 

15.9 

27 

29.7 

ME-16-3

16 

3/8

38.3 

14 

29 

24.4 

12.7 

23 

9.5 

27 

27.9 

ME-16-4

16 

1/2

38.3 

17 

32 

24.4 

12.7 

23 

11.9 

27 

27.9 

ME-16-6

16 

3/4

40.1 

19 

38.8 

24.4 

12.7 

28 

15.9 

27 

29.7 

ME-18-3

18 

3/8

39.3 

13.5 

30 

24.8 

15.1 

28 

9.5 

30 

28.5 

ME-18-4

18 

1/2

40.5 

17 

36.8 

24.8 

15.1 

28 

11.9 

30 

29.7 

ME-18-6

18 

3/4

40.5 

19 

38.8 

24.8 

15.1 

28 

15.9 

30 

29.7 

ME-20-4

20 

1/2

42.5 

19 

38.5 

25.5 

15.9 

32 

11.9 

32 

32 

ME-20-6

20 

3/4

42.5 

19 

38.5 

25.5 

15.9 

32 

15.9 

32 

32 

ME-22-4

22 

1/2

42.5 

19 

38.5 

25.5 

18.3 

32 

11.9 

32 

32 

ME-22-6

22 

3/4

42.5 

19 

38.5 

25.5 

18.3 

32 

15.9 

32 

32 

ME-22-8

22 

1"

46 

22 

46.5 

25.5 

18.3 

34.5 

21.5 

32 

35.5 

ME-25-4

25 

1/2

49.5 

19 

41.7 

31.7 

21.8 

34.5 

11.9 

38 

36.8 

ME-25-6

25 

3/4

49.5 

19 

41.7 

31.7 

21.8 

34.5 

15.9 

38 

36.8 

ME-25-8

25 

1 

49.5 

22 

46.5 

31.7 

21.8 

34.5 

21.5 

38 

36.8 


(FRACTIONAL)

CATALOG NUMBER

T TUBE O.D.

 PT-NPT MALE PIPE SIZE

A

B

C

D

E

F

K

G

H

ME-01-1

1/8

1/8

26.1 

10 

19.1 

14 

2.4 

12.7 

4.8 

12 

18.6 

 ME-01-2

1/8

1/4

26.1 

14 

23.2 

14 

2.4 

15 

7.1 

12 

18.6 

ME-015-1

3/16

1/8

25.8 

10 

19.1 

13.7 

3 

12.7 

4.8 

12 

19.1 

ME-015-2

3/16

1/4

25.8 

14 

23.2 

13.7 

3 

15 

7.1 

12 

19.1 

ME-02-1

1/4

1/8

27.4 

10 

19.1 

15.8 

4.8 

12.7 

4.8 

14 

19.6 

ME-02-2

1/4

1/4

27.4 

14 

23.2 

15.8 

4.8 

15 

7.1 

14 

19.6 

ME-02-3

1/4

3/8

30.2 

14 

26 

15.8 

4.8 

17.5 

9.5 

14 

22.4 

ME-02-4

1/4

1/2

32.2 

19 

33 

15.8 

4.8 

20.6 

11.9 

14 

24.4 

ME-03-1

3/8

1/8

28.9 

10 

21.1 

19.6 

7.1 

15 

4.8 

17 

21.3 

ME-03-2

3/8

1/4

28.9 

14 

24.2 

19.6 

7.1 

15 

7.1 

17 

21.3 

ME-03-3

3/8

3/8

31.5 

14 

26 

19.6 

7.1 

17.5 

9.5 

17 

23.9 

ME-03-4

3/8

1/2

33.5 

19 

33 

19.6 

7.1 

20.6 

11.9 

17 

25.9 

ME-04-1

1/2

1/8

36.1 

10 

25.7 

23.4 

10.4 

20.6 

4.8 

22 

25.9 

ME-04-2

1/2

1/4

36.1 

14 

28 

23.4 

10.4 

20.6 

7.1 

22 

25.9 

ME-04-3

1/2

3/8

36.1 

14 

28 

23.4 

10.4 

20.6 

9.5 

22 

25.9 

ME-04-4

1/2

1/2

36.1 

19 

33 

23.4 

10.4 

20.6 

11.9 

22 

25.9 

ME-04-6

1/2

3/4

39.9 

19 

38.8 

23.4 

10.4 

28 

15.9 

22 

29.7 

ME-04-8

1/2

1"

45 

22 

46.5 

23.4 

10.4 

34.5 

21.5 

22 

34.8 

ME-05-3

5/8

3/8

38.3 

14 

29 

24.4 

12.7 

23 

9.5 

27 

27.9 

ME-05-4

5/8

1/2

38.3 

17 

32 

24.4 

12.7 

23 

11.9 

27 

27.9 

ME-05-6

5/8

3/4

40.1 

19 

38.8 

24.4 

12.7 

28 

15.9 

27 

29.7 

ME-06-3

3/4

3/8

40.1 

14 

33.8 

24.4 

15.7 

28 

9.5 

30 

29.7 

ME-06-4

3/4

1/2

40.1 

17 

36.8 

24.4 

15.7 

28 

11.9 

30 

29.7 

ME-06-6

3/4

3/4

40.1 

19 

38.8 

24.4 

15.7 

28 

15.9 

30 

29.7 

ME-06-8

3/4

1"

45.2 

22 

46.5 

24.4 

15.7 

34.5 

21.5 

30 

34.8 

ME-08-4

 1"

1/2

49.5 

19 

41.7 

31.7 

22.4 

34.5 

11.9 

38 

36.8 

ME-08-6

 1"

3/4

49.5 

19 

41.7 

31.7 

22.4 

34.5 

15.9 

38 

36.8 

ME-08-8

 1"

1"

49.5 

22 

46.5 

31.7 

22.4 

34.5 

21.5 

38 

36.8 


(FRACTIONAL)

CATALOG NUMBER

T TUBE O.D.

G-NPT MALE PIPE SIZE

A

B

C

D

E

F

K

G

H

ME-01-01-G

1/8

1/8

26.1 

7.1 

20.1 

14 

2.4 

15 

4.8 

12 

18.6 

ME-02-01-G

1/4

1/8

27.4 

7.1 

20.1 

15.8 

4.8 

15 

4.8 

14 

19.6 

ME-02-02-G

1/4

1/4

30.7 

11.2 

25.2 

15.8 

4.8 

17.5 

6.4 

14 

22.9 

ME-02-03-G

1/4

3/8

31.7 

12 

25.9 

15.8 

4.8 

21 

7.9 

14 

23.9 

ME-02-04-G

1/4

1/2

35.5 

14.2 

37.2 

15.8 

4.8 

28 

11.9 

14 

27.7 

ME-03-01-G

3/8

1/8

28.9 

7.1 

20.1 

19.6 

7.1 

15 

4.8 

17 

21.3 

ME-03-06-G

3/8

3/4

42.1 

15.7 

41.7 

19.6 

7.1 

35 

15.9 

17 

34.5 

ME-04-02-G

1/2

1/4

36.1 

11.2 

26 

23.4 

10.4 

21 

13.2 

22 

25.9 

M3-04-03-G

1/2

3/8

36.1 

11.2 

25.9 

23.4 

10.4 

21 

7.9 

22 

25.9 

ME-04-04-G

1/2

1/2

39.9 

14.2 

37.2 

23.4 

10.4 

28 

11.9 

22 

29.7 

ME-08-06-G

1"

3/4

49.5 

15.7 

41.7 

31.7 

22.4 

35 

15.9 

38 

36.8 

All dimensions are in mullimeters unless otherwise specified, onlyfor reference subject to change.

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

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.

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