All-Metal Weld Fitting for Critical Applications (-196℃～+500℃)

K-/A- Metal-to-Metal Spherical Seal Weld Fitting

Features
Metal-to-metal seal fittings are suitable for high-temperature, cryogenic, and applications where rubber or other non-metallic seals are not permitted. The spherical seal design ensures high reliability, low installation requirements, and extended service life.

Technical Data
● Fitting material: 304 stainless steel(-SS)，316L(-SL)
● Ball material: Stainless Steel 304
● Operating temperature:-196℃～+450℃(304 SS)，-196℃～+500℃(316L SL)
● Max. working pressure: Refer to table below. Note: Pressure rating decreases with increasing temperature (see Technical Data: Valve Material Properties page).

Product Details
概要描述
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Commodity name: All-Metal Weld Fitting for Critical Applications (-196℃～+500℃)
Commodity ID: EG01930
小标题: K-/A- Metal-to-Metal Spherical Seal Weld Fitting

○ Interface type: Welded ○ Specification: 6–42 mm ○ Joint material: Stainless steel 304, 316L

Weld Nipple & Nut Assembly

I. Standard Weld Nipple & Nut Assembly SKM (SK+UWM)
When ordering assembly with fitting, add "K-" to the ordering number (e.g., K-ASVK-L18*2-SS).
Features: Coated with stainless steel lubricant PASTEL-2/3S (+1400℃) on nut thread and the spherical surface of weld nipple to prevent galling

II. Oil-Free Weld Nipple & Nut Assembly SAM(SA+UWM)
When ordering assembly with fitting, add "A-" to the ordering number (e.g., A-ASVK-L10*2-SL).
Features: SAM is degreased for high purity applications such as laboratories and instrumentation. The weld nipple of SAM is connected to the nut with steel ball bearing to improve durability and performance.

Table of Technical Data [mm]

Series	Model		AD	S	M	L	Max. Working Pressure [bar]
Series	Standard (304)	Degreassed (316L)	AD	S	M	L	Max. Working Pressure [bar]
Light Series L	SKM-L06*1.5-SS	SAM-L06*1.5-SL	6	1.5	M12*1.5	27.0	400
	SKM-L08*1.5-SS	SAM-L08*1.5-SL	8	1.5	M14*1.5	27.5	400
	SKM-L10*2.0-SS	SAM-L10*2.0-SL	10	2.0	M16*1.5	30.0	350
	SKM-L12*2.0-SS	SAM-L12*2.0-SL	12	2.0	M18*1.5	31.0	315
	SKM-L15*1.5-SS	--	15	1.5	M22*1.5	35.0	210
	SKM-L15*2.0-SS	--	15	2.0	M22*1.5	35.0	300
	SKM-L18*2.0-SS	--	18	2.0	M26*1.5	35.0	250
	SKM-L18*2.5-SS	--	18	2.5	M26*1.5	35.0	315
	SKM-L22*2.0-SS	--	22	2.0	M30*2	37.5	210
	SKM-L22*2.5-SS	--	22	2.5	M30*2	37.5	250
	SKM-L28*2.5-SS	--	28	2.5	M36*2	40.0	210
	SKM-L28*3.0-SS	--	28	3.0	M36*2	40.0	250
	SKM-L35*4.0-SS	--	35	4.0	M45*2	45.0	250
	SKM-L42*5.0-SS	--	42	5.0	M52*2	45.0	250
Heavy Series S	SKM-S16*3.0-SS	--	16	3.0	M24*1.5	35.0	400
	SKM-S20*3.0-SS	--	20	3.0	M30*2	42.0	315
	SKM-S25*4.0-SS	--	25	4.0	M36*2	46.5	350
	SKM-S30*4.0-SS	--	30	4.0	M42*2	49.0	300
	SKM-S38*5.0-SS	--	38	5.0	M52*2	52.5	300

Note: All the materials listed above are 304 stainless steel. For 316L stainless steel, change “-SS” to “SL”.

Features
Metal-to-metal seal fittings are suitable for high-temperature, cryogenic, and applications where rubber or other non-metallic seals are not permitted. The spherical seal design ensures high reliability, low installation requirements, and extended service life.
Technical Data
● Fitting material: 304 stainless steel(-SS)，316L(-SL)
● Ball material: Stainless Steel 304
● Operating temperature:-196℃～+450℃(304 SS)，-196℃～+500℃(316L SL)
● Max. working pressure: Refer to table below. Note: Pressure rating decreases with increasing temperature (see Technical Data: Valve Material Properties page).

Weld Nipple & Nut Assembly

Table of Technical Data [mm]

Series	Model		AD	S	M	L	Max. Working Pressure [bar]
Series	Standard (304)	Degreassed (316L)	AD	S	M	L	Max. Working Pressure [bar]
Light Series L	SKM-L06*1.5-SS	SAM-L06*1.5-SL	6	1.5	M12*1.5	27.0	400
	SKM-L08*1.5-SS	SAM-L08*1.5-SL	8	1.5	M14*1.5	27.5	400
	SKM-L10*2.0-SS	SAM-L10*2.0-SL	10	2.0	M16*1.5	30.0	350
	SKM-L12*2.0-SS	SAM-L12*2.0-SL	12	2.0	M18*1.5	31.0	315
	SKM-L15*1.5-SS	--	15	1.5	M22*1.5	35.0	210
	SKM-L15*2.0-SS	--	15	2.0	M22*1.5	35.0	300
	SKM-L18*2.0-SS	--	18	2.0	M26*1.5	35.0	250
	SKM-L18*2.5-SS	--	18	2.5	M26*1.5	35.0	315
	SKM-L22*2.0-SS	--	22	2.0	M30*2	37.5	210
	SKM-L22*2.5-SS	--	22	2.5	M30*2	37.5	250
	SKM-L28*2.5-SS	--	28	2.5	M36*2	40.0	210
	SKM-L28*3.0-SS	--	28	3.0	M36*2	40.0	250
	SKM-L35*4.0-SS	--	35	4.0	M45*2	45.0	250
	SKM-L42*5.0-SS	--	42	5.0	M52*2	45.0	250
Heavy Series S	SKM-S16*3.0-SS	--	16	3.0	M24*1.5	35.0	400
	SKM-S20*3.0-SS	--	20	3.0	M30*2	42.0	315
	SKM-S25*4.0-SS	--	25	4.0	M36*2	46.5	350
	SKM-S30*4.0-SS	--	30	4.0	M42*2	49.0	300
	SKM-S38*5.0-SS	--	38	5.0	M52*2	52.5	300