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Pipe Fittings: Stainless Steel

LOKRING Technology Pipe Solutions: Stainless Steel

 

LOKRING fittings patented, permanent, metal-to-metal seals help reduce heat-affected zones which are susceptible to accelerated corrosion due to the heat-affected stresses of welding.

 

 


 

Pressure and Temperature Ratings

Stainless Steel Pipe Fittings: SS Series

Lokring Carbon Steel Pipe Fittings Lokring Size Pipe NPS Pressure Rating in psi (bar)

ASME B31.1 Rating

Pipe Schedules

ASME B31.3

Pipe Schedules

10

40

80

10

40

80

SS

Pipe Product

P04

1/4”

3781
(261)

5300
(365)

6000
(414)

4529
(312)

6300
(434)

8000
(552)

P06

3/8”

3400
(234)

4900
(338)

5750
(396)

3600
(248)

5200
(359)

6100
(429)

P08

1/2”

4030
(278)

4760
(328)

4760
(328)

4290
(296)

5060
(349)

5060
(349)

P12

3/4”

3170
(219)

4210
(290)

4930
(340)

3380
(233)

4470
(308)

5250
(362)

P16

1"

3340
(230)

3680
(254)

3990
(275)

3550
(245)

3920
(270)

4240
(292)

P20

1-1/4"

2450
(169)

2700
(186)

2980
(205)

2675
(184)

2910
(201)

3170
(219)

P24

1-1/2"

2260
(156)

2440
(168)

2440
(168)

2410
(166)

2600
(179)

2600
(179)

P32

2"

1500
(103)

2200
(152)

2500
(172)

1600
(110)

2300
(159)

2700
(186)

P48

3"

920
(63)

1700
(117)

1350
(93)

1150
(79)

2100
(145)

1705
(118)

* not tested

TEMPERATURE RATING:

Piping systems containing the pipe fittings listed above may establish design pressures up to and including the ambient maximum design pressure given for temperatures from -60° to 100°F (-50° to 40°C) for ASME B31.1, and from -325° to 100°F (-200° to 40°C) for ASME B31.3. For temperatures above 200°F the maximum design pressure given shall be multiplied by the temperature de-rating factor listed below.

 

 

Temperature De-rating Table For Lokring Carbon Steel (CS) Fittings

Temperature  °F (°C)

de-rating factor B31.1

de-rating factor B31.3

200°
(93°)

1.00

1.00

300°
(148°)

0.98

1.00

400°
(204°)

0.96

0.97

500°
(260°)

0.96

0.90

600°
(315°)

0.90

0.85

650°
(343°)

0.89

0.84

700°
(371°)

0.87

0.82

750°
(398°)

0.86

0.81

800°
(426°)

0.85

0.80

 

 

NOTES:

 

1.

Fitting material 316L Stainless Steel as per ASTM A276 or ASTM 479

2.

LOKRING Stainless Steel Pipe Fittings are of a
“slip-over” design facilitating zero-clearance pipe repair 

3.

See LOKRING Specification FS40 for details on Pressure and Temperature Ratings

4. See LOKRING “Corrosive Service Guidelines” for specific service details
5. See “LOKRING Fitting Applications Guide” for additional design and service details


 

   












General Information

Fitting Size

(PXX)

Insertion Depth
Pre-Install
A

Insertion Depth
Pre-Install B

 Outside
Diameter C

Inside Diameter
D

Minimum Straight Run
Before a bend,
E

1/4”(P04)

1.44”

1.05”

1.06”

0.56”

1.89”

3/8” (P06)

1.60”

1.18”

1.28”

0.69”

2.08”

1/2” (P08)

1.72”

1.29”

1.49”

0.86”

2.24”

3/4” (P12)

1.94”

1.44”

1.61”

1.07”

2.52”

1" (P16)

2.20”

1.66”

1.96”

1.33”

2.86”

1 1/4" (P20) 2.51" 1.90" 2.37" 1.68" 3.33"
1 1/2" (P24) 2.80" 2.05" 2.63" 1.92" 3.64"
2" (P32) 3.28" 2.53" 3.25" 2.41" 4.13"
3" (P48) 4.71" 3.41" 4.50" 3.53" 6.12"

 

1. All dimensions are in inches.
2. Dimensions A, B, C, D, & E are applicable to other fittings of the same size within this catalog.
3. For use on 316, 316L, 304, 304L stainless steel pipe as per ASTM A312 and Carbon Steel ASTM A53 or A106. See table for qualified wall thickness.
4. For tooling dimensions refer to appropriate catalog.
5. Coupling "thru-bore" design permits tube to pass completely through. All other fittings (tees, elbows, etc.) have an interval travel stop.
6. Fitting material 316L Stainless Steel as per ASTM A276 or ASTM 479.
7. ABS, LLOYD'S, USCG approved.
8. Fire approved per ABS and CFR 46 regulations.
9. All dimensions are for reference only and subject to change (CAD files available upon request).


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