TURCON STEPSEAL K

Description

The Turcon Stepseal K is a single-acting seal element consisting of a seal ring of high-grade Turcon or Zurcon materials and an O-Ring as energizing element.

The Turcon Stepseal K was originally developed and patented (Patent No. P3225906) by Busak+Shamban as a rodseal. Due to its outstanding properties, however, it is equally well suited as a single-acting piston seal where high demands are made on positional accuracy and free movement.

Advantages

– High static and dynamic sealing effect

– Stick-slip free operation for precise control

– High abrasion resistance and resistance to extrusion

– Long service life

– Simple groove design, one-piece piston possible

– Wide range of application temperatures and high resistance to chemicals, depending on the choice of O-Ring material

– Simple installation without seal edge deformation due to the K-edge

– Available for all diameters up to 2.700 mm

Application Examples

The Turcon Stepseal K is the recommended sealing element for single acting pistons in hydraulic components for:

• Injection moulding machines
• Machine tools
• Presses

It is particularly recommended in floating piston accumulators as primary seal on the oil side in combination with AQ-Seal and AQ-Seal 5

Technical Data

Operating conditions
pressure: Up to 80 MPa

Speed: Up to 15 m/s, frequency up to 5 Hz

Temperature: -45qC to +200qC *)

Media: Mineral oil-based hydraulic fluids, flame retardant hydraulic fluids, environmentally safe hydraulic fluids (bio-oils), water, air and others, depending on the O-Ring material (see Table)

Clearance: The maximum permissible radial clearance Smax is shown in Table , as a function of the operating pressure and functional diameter.

Important Note:

The above data are maximum values and cannot be used at the same time. e.g. the maximum operating speed depends on material type, pressure, temperature and gap value. Temperature range also dependent on medium. In the case of unpressurized applications in temperatures below 0°C please contact our application engineers for assistance !

Materials

Standard Application:

For hydraulic components in mineral oils containing zinc or medium with good lubricating performance.

Turcon Seal: Turcon T46

Energiser: O-Ring NBR 70 Shore A or FKM 70 Shore A depending on the temperature

Set reference: T46 N or T46 V

Special Application:

Non-lubricating fluids or pneumatic applications require self-lubricating sealing materials. Therefore we recommend:

Turcon Seal: Turcon T29

Energiser: O-Ring NBR 70 Shore A or FKM 70 Shore A depending on the temperature

Set reference: T29 N or T29 V Rough mating surface finish and improved leakage control

Zurcon Seal: Zurcon Z51

Energiser: O-Ring NBR 70 Shore A

Set reference: Z51 N

Groove

Stepseal K are also available on request for the groove sizes to ISO 7425/1.

Turcon and Zurcon Materials for Stepseal K

Material, Applications, Properties	Code	O-Ring Material	Code	O-Ring  Operating Temp.* °C	Mating Surface Material	MPa max.
Turcon® T46 Standard material for hydraulics, high compressive strength, good sliding and wear properties, good extrusion resistance, BAM tested. Bronze filled Colour: Greyish to dark brown	T46	NBR – 70 Shore A	N	-30 to +100	Steel tubes Steel, hardened Cast iron	60
		NBR – Low temp. 70 Shore A	T	-45 to +80
		FKM – 70 Shore A	V	-10 to +200
Turcon® T08 Very high compressive strength, very good extrusion resistance. High bronze filled Colour: Light to dark brown	T08	NBR – 70 Shore A	N	-30 to +100	Steel tubes Steel, hardened Cast iron	80
		NBR – Low temp. 70 Shore A	T	-45 to +80
		FKM – 70 Shore A	V	-10 to +200
Turcon® T40 For all lubricating and non-lubricating hydraulic fluids, water hydraulic, soft mating surfaces. Surface texture not suitable for gases. Carbon fibre filled Colour: Grey	T40	NBR – 70 Shore A	N	-30 to +100	Steel Cast iron Stainless steel Aluminium Bronze Alloys	25
		NBR – Low temp. 70 Shore A	T	-45 to +80
		FKM – 70 Shore A	V	-10 to +200
		EPDM-70 Shore A	E**	-45 to +145
Turcon® T29 For all lubricating and non-lubricating hydraulic fluids, hydraulic oils without zinc, soft mating surfaces, good extrusion resistance. Surface texture not suitable for gases. High carbon fibre filled Colour: Grey	T29	NBR – 70 Shore A	N	-30 to +100	Steel Cast iron Stainless steel Aluminium Bronze	60
		NBR – Low temp. 70 Shore A	T	-45 to +80
		FKM – 70 Shore A	V	-10 to +200
		EPDM-70 Shore A	E**	-45 to +145
Turcon® T05 For all lubricating hydraulic fluids, hard mating surfaces, very good sliding properties, low friction. Colour: Turquoise	T05	NBR – 70 Shore A	N	-30 to +100	Steel tubes Steel, hardened	20
		NBR – Low temp. 70 Shore A	T	-45 to +80
		FKM – 70 Shore A	V	-10 to +200
Turcon® T42 For all lubricating and non-lubricating hydraulic fluids, good chemical resistance, good dielectric properties. Glass fibre filled + MoS2 Colour: Grey to blue	T42	NBR – 70 Shore A	N	-30 to +100	Steel tubes Steel, hardened Cast iron	30
		NBR – Low temp. 70 Shore A	T	-45 to +80
		FKM – 70 Shore A	V	-10 to +200
Turcon® T10 For oil hydraulic and pneumatic, for all lubricating and non- lubricating fluids, high extrusion resistance, good chemical resistance, BAM tested. Carbon, graphite filled Colour: Black	T10	NBR – 70 Shore A	N	-30 to +100	Steel  Stainless steel	60
		NBR – Low temp. 70 Shore A	T	-45 to +80
		FKM – 70 Shore A	V	-10 to +200
		EPDM-70 Shore A	E**	-45 to +145
Zurcon® Z51*** For lubricating hydraulic fluids, high abrasion resistance, high extrusion resistance, limited chemical resistance. Cast polyurethane Colour: Yellow to light-brown	Z51	NBR – 70 Shore A	N	-30 to +100	Steel Steel, hardened Cast iron Ceramic coating Stainless steel	80
		NBR – Low temp. 70 Shore A	T	-45 to +80
ZurconR Z80 For lubricating and non-lubricating hydraulic fluids, high abrasion resistance, very good chemical resistance, limited temperature resistance. Ultra high molecular weight polyethylen Colour: White to off-white	Z80	NBR – 70 Shore A	N	-30 to +80	Steel Stainless steel Aluminium Bronze Ceramic coating	40
		NBR – Low temp. 70 Shore A	T	-45 to +80

 

Ordering Example

Turcon Stepseal K, complete with O-Ring, standard application, Series PS14 (from Table).

Bore diameter: DN = 80.0 mm
Part No. PS1400800 (from Table)

Select the material from Table. The corresponding code numbers are appended to the Part No. (from Table). Together they form the Order No. For all intermediate sizes not shown in Table, the Order No. can be determined from the example opposite.

*** For diameters t 1000.0 mm multiply only by factor 1.
Example: PS14 for diameter 1200.0 mm.
Order no.: PS14X1200 – T46N.

 

TURCON STEPSEAL K

Bore Dia.	Groove Dia.	Groove Width	Part No. StepsealR K	Part No. StepsealR 2K	O-Ring Dimensions
DN  H9	d1   h9	L1 +0.2
9,0	4,1	2,2	PS1400090	PSK000090	3.68 x 1.78
10,0	5,1	2,2	PS1400100	PSK000100	4.80 x 1.8
12,0	7,1	2,2	PS1400120	PSK000120	6.70 x 1.8
14,0	9,1	2,2	PS1400140	PSK000140	8.75 x 1.8
15,0	10,1	2,2	PS1400150	PSK000150	9.25 x 1.78
16,0	11,1	2,2	PS1400160	PSK000160	10.82 x 1.78
18,0	10,7	3,2	PS1400180	PSK100180	9.19 x 2.62
20,0	15,1	2,2	PS1600200	PSK000200	14.00 x 1.78
20,0	12,7	3,2	PS1400200	PSK100200	12.37 x 2.62
22,0	14,7	3,2	PS1400220	PSK100220	13.94 x 2.62
25,0	17,7	3,2	PS1400250	PSK100250	17.12 x 2.62
25,0	14,3	4,2	PS1200250	PSK200250	13.87 x 3.53
28,0	17,3	4,2	PS1400280	PSK200280	15.47 x 3.53
30,0	22,7	3,2	PS1600300	PSK100300	21.89 x 2.62
30,0	19,3	4,2	PS1400300	PSK200300	18.66 x 3.53
32,0	24,7	3,2	PS1600320	PSK100320	23.47 x 2.62
32,0	21,3	4,2	PS1400320	PSK200320	20.22 x 3.53
35,0	24,3	4,2	PS1400350	PSK200350	23.40 x 3.53
40,0	32,7	3,2	PS1600400	PSK100400	31.42 x 2.62
40,0	29,3	4,2	PS1400400	PSK200400	28.17 x 3.53
42,0	31,3	4,2	PS1400420	PSK200420	29.75 x 3.53
45,0	34,3	4,2	PS1400450	PSK200450	32.92 x 3.53
48,0	37,3	4,2	PS1400480	PSK200480	36.09 x 3.53
50,0	39,3	4,2	PS1400500	PSK200500	37.70 x 3.53
50,0	34,9	6,3	PS1200500	PSK300500	32.69 x 5.33
52,0	41,3	4,2	PS1400520	PSK200520	40.87 x 3.53
55,0	44,3	4,2	PS1400550	PSK200550	44.04 x 3.53
60,0	44,9	6,3	PS1400600	PSK300600	43.82 x 5.33
63,0	52,3	4,2	PS1600630	PSK200630	50.39 x 3.53
63,0	47,9	6,3	PS1400630	PSK300630	46.99 x 5.33
65,0	49,9	6,3	PS1400650	PSK300650	46.99 x 5.33
70,0	59,3	4,2	PS1600700	PSK200700	56.74 x 3.53
70,0	54,9	6,3	PS1400700	PSK300700	53.34 x 5.33
75,0	59,9	6,3	PS1400750	PSK300750	56.52 x 5.33
80,0	64,9	6,3	PS1400800	PSK300800	62.87 x 5.33
80,0	59,5	8,1	PS1200800	PSK400800	58 x 7.0
85,0	69,9	6,3	PS1400850	PSK300850	69.22 x 5.33
85,0	64,5	8,1	PS1200850	PSK400850	63 x 7.0
90,0	74,9	6,3	PS1400900	PSK300900	72.39 x 5.33
90,0	69,5	8,1	PS1200900	PSK400900	68 x 7.0
95,0	79,9	6,3	PS1400950	PSK300950	78.74 x 5.33
95,0	74,5	8,1	PS1200950	PSK400950	73 x 7.0

100,0	84,9	6,3	PS1401000	PSK301000	81.92 x 5.33
100,0	79,5	8,1	PS1201000	PSK401000	78 x 7.0
105,0	89,9	6,3	PS1401050	PSK301050	88.27 x 5.33
105,0	84,5	8,1	PS1201050	PSK401050	83 x 7.0
106,0	90,9	6,3	PS1401060	PSK301060	88.27 x 5.33
110,0	94,9	6,3	PS1401100	PSK301100	91.44 x 5.33
110,0	89,5	8,1	PS1201100	PSK401100	88 x 7.0
115,0	99,9	6,3	PS1401150	PSK301150	97.79 x 5.33
115,0	94,5	8,1	PS1201150	PSK401150	93 x 7.0
120,0	104,9	6,3	PS1401200	PSK301200	104.14 x 5.33
120,0	99,5	8,1	PS1201200	PSK401200	98 x 7.0
125,0	109,9	6,3	PS1401250	PSK301250	107.32 x 5.33
125,0	104,5	8,1	PS1201250	PSK401250	103 x 7.0
130,0	114,9	6,3	PS1401300	PSK301300	113.67 x 5.33
130,0	109,5	8,1	PS1201300	PSK401300	108.00 x 7.0
135,0	114,5	8,1	PS1201350	PSK401350	113.67 x 7.0
140,0	119,5	8,1	PS1201400	PSK401400	116.84 x 7.0
145,0	124,5	8,1	PS1201450	PSK401450	123.19 x 7.0
150,0	129,5	8,1	PS1201500	PSK401500	126.37 x 7.0
155,0	139,9	6,3	PS1401550	PSK301550	135.89 x 5.33
160,0	144,9	6,3	PS1401600	PSK301600	142.24 x 5.33
160,0	139,5	8,1	PS1201600	PSK401600	135.89 x 7.00
165,0	149,9	6,3	PS1401650	PSK301650	148.49 x 5.33
165,0	144,5	8,1	PS1201650	PSK401650	142.24 x 7.0
170,0	149,5	8,1	PS1201700	PSK401700	145.42 x 7.0
175,0	159,9	6,3	PS1401750	PSK301750	158.12 x 5.33
180,0	164,9	6,3	PS1401800	PSK301800	164.47 x 5.33
180,0	159,5	8,1	PS1201800	PSK401800	158.12 x 7.0
190,0	174,9	6,3	PS1401900	PSK301900	170.82 x 5.33
190,0	169,5	8,1	PS1201900	PSK401900	164.47 x 7.0
200,0	184,9	6,3	PS1602000	PSK302000	183.52 x 5.33
200,0	179,5	8,1	PS1402000	PSK402000	177.17 x 7.0
205,0	184,5	8,1	PS1402050	PSK402050	183.52 x 7.0
210,0	189,5	8,1	PS1402100	PSK402100	183.52 x 7.0
220,0	204,9	6,3	PS1602200	PSK302200	202.57 x 5.33
220,0	199,5	8,1	PS1402200	PSK402200	196.22 x 7.0
230,0	209,5	8,1	PS1402300	PSK402300	208.92 x 7.0
240,0	219,5	8,1	PS1402400	PSK402400	215.27 x 7.0
250,0	229,5	8,1	PS1402500	PSK402500	227.97 x 7.0
250,0	226,0	8,1	PS1202500	PSK802500	227.97 x 7.0
260,0	236,0	8,1	PS1402600	PSK802600	227.97 x 7.0
270,0	246,0	8,1	PS1402700	PSK802700	240.67 x 7.0

280,0	256,0	8,1	PS1402800	PSK802800	253.37 x 7.0
300,0	276,0	8,1	PS1403000	PSK803000	266.07 x 7.0
306,0	285,5	8,1	PS1603060	PSK403060	278.77 x 7.0
310,0	286,0	8,1	PS1403100	PSK803100	278.77 x 7.0
320,0	299,5	8,1	PS1603200	PSK403200	291.47 x 7.0
320,0	296,0	8,1	PS1403200	PSK803200	291.47 x 7.0
330,0	306,0	8,1	PS1403300	PSK803300	304.17 x 7.0
340,0	316,0	8,1	PS1403400	PSK803400	316.87 x 7.0
345,0	324,5	8,1	PS1603450	PSK403450	316.87 x 7.0
350,0	326,0	8,1	PS1403500	PSK803500	316.87 x 7.0
360,0	336,0	8,1	PS1403600	PSK803600	329.57 x 7.0
370,0	346,0	8,1	PS1403700	PSK803700	342.27 x 7.0
380,0	356,0	8,1	PS1403800	PSK803800	354.97 x 7.0
400,0	376,0	8,1	PS1404000	PSK804000	367.67 x 7.0
420,0	396,0	8,1	PS1404200	PSK804200	393.07 x 7.0
430,0	406,0	8,1	PS1404300	PSK804300	405.26 x 7.0
440,0	416,0	8,1	PS1404400	PSK804400	405.26 x 7.0
450,0	426,0	8,1	PS1404500	PSK804500	417.96 x 7.0
480,0	456,0	8,1	PS1404800	PSK804800	456.06 x 7.0
500,0	476,0	8,1	PS1405000	PSK805000	468.76 x 7.0
520,0	499,5	8,1	PS1605200	PSK405200	494.16 x 7.0
540,0	516,0	8,1	PS1405400	PSK805400	506.86 x 7.0
600,0	576,0	8,1	PS1406000	PSK806000	557.66 x 7.0
650,0	626,0	8,1	PS1406500	PSK806500	608.08 x 7.0
700,0	672,7	9,5	PS1407000	PSK507000	670 x 8.4
800,0	772,7	9,5	PS1408000	PSK508000	770 x 8.4
860,0	832,7	9,5	PS1408600	PSK508600	830 x 8.4
900,0	872,7	9,5	PS1409000	PSK509000	870 x 8.4
920,0	892,7	9,5	PS1409200	PSK509200	890 x 8.4
1000,0	972,7	9,5	PS16X1000	PSK5X1000	970 x 8.4
1000,0	962,0	13,8	PS14X1000	PSK6X1000	960 x 12.0
1200,0	1172,7	9,5	PS16X1200	PSK5X1200	1170 x 8.4
1200,0	1162,0	13,8	PS14X1200	PSK6X1200	1160 x 12.0
1500,0	1462,0	13,8	PS14X1500	PSK6X1500	1460 x 12.0
2000,0	1962,0	13,8	PS14X2000	PSK6X2000	1960 x 12.0
2700,0	2662,0	13,8	PS14X2700	PSK6X2700	2660 x 12.0