TURCON VARISEAL M2

Description

The Turcon Variseal M2 is a single-acting seal consisting of a U-shaped seal jacket and a V-shaped corrosion resistant spring.

The characteristic of the Variseal M2 is the newly developed asymmetric seal profile, where the dynamic lip has an optimized short and heavy profile, offering reduced friction and long service life.

At low and zero pressure, the metal spring provides the primary sealing force. As the system pressure increases, the main sealing force is achieved by the system pressure and ensures a tight seal from zero to high pressure.

The possibility of matching suitable materials for the seal and the spring allows use in a wide range of applications going beyond the field of hydraulics, e.g. in the chemical, pharmaceutical and foodstuff industry.

The Variseal M2 can be sterilized and is available in a special Hi-Clean version where the spring cavity is filled with a Silicone gel preventing contaminants from being entrapped in the seal. This design also works well in applications involving mud, slurries or adhersives to keep grit from packing into the seal cavity and inhibiting the spring action.

For applications with highly viscous media, please contact our engineering department. Variseal M2 seals can be installed in grooves to MIL G 5514F and ISO 3771. The seal can only be installed to a limited extent in closed grooves. Installation instructions, see fig. 14.

 

Advantages

– Resistant to most fluids and chemicals
– Low coefficients of friction
– Stick-slip-free operating for precise control
– High abrasion resistance and dimensional stability
– Can handle rapid changes in temperature
– No contamination in contact with foodstuffs, pharmaceutical and medicinal fluids
– High temperature range
– Sterilisable
– Unlimited shelf life.

Application Examples

Turcon Variseal M2 is the recommended sealing element for all applications requiring stick slip free operation as well as chemical resistance against almost all media such as:

• Valves
• Pumps
• Separators
• Actuators
• Dosing devices

It requires a mating surface of high quality to avoid high wear rate.

Technical Data

Operating conditions

Pressure: For dynamic loads: 45 MPa

Speed: Up to 15 m/s

Temperature: -70°C to +260°C

For specific applications at lower temperatures, please enquire

Media: Practically all fluids, chemicals and gases

Note: At high temperatures, pressures and speeds must be reduced.

 

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.

Materials

All materials used are physiologically safe. They contain no odour or taste-affecting substances.

The following material combination has proved effective for most fluid applications:

Seal ring: Turcon T40

Spring: Stainless Steel Material No. AISI 301 Code S

For gas application use:

Seal ring: Turcon T05/Zurcon Z80

For use in accordance with the demands of the ”Food and Drug Administration”, suitable materials are available on request.

Material, Applications, Properties	Code	Spring Material	Code	Operating Temp.* °C	Mating Surface Material	MPa max.
Turcon T40 For all lubricating and non-lubricating hydraulic fluids, water hydraulic, soft mating surfaces. Carbon fibre filled Colour: Grey	T40	AISI 301	S	-70 to +260	Steel Steel, chromeplated Cast iron Stainless steel Aluminium Bronze Alloys	45
Turcon T05 For all lubricating hydraulic fluids, hard mating surfaces, very good sliding properties, low friction. Colour: Turquoise	T05	AISI 301	S	-70 to +260	Steel tubes Steel, hardened Steel, chromeplated	20
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	AISI 301	S	-70 to +80	Steel Steel, chromeplated Stainless steel Aluminium Bronze Ceramic coating	40

 

Ordering Example

Turcon Variseal M2, standard series, Series RVA3 (from Table).

Rod diameter: dN = 80.0 mm
Part No.: RVA300800 (from Table)

For other seal and spring materials please contact the
Busak+Shamban representative.

** For diameters ≥ 1000.0 mm multiply only by factor 1. Example: RVA5 for diameter 1200.0 mm. Order no.: RVA5X1200 – T40S.

 

Rod Diameter	Groove Diameter	Groove Width	Part No.
dN h9	D1 H9	L1 +0.2
3,0	5,9	2,4	RVA 000030
4,0	6,9	2,4	RVA 000040
5,0	7,9	2,4	RVA 000050
6,0	8,9	2,4	RVA 000060
8,0	10,9	2,4	RVA 000080
10,0	14,5	3,6	RVA 100100
12,0	16,5	3,6	RVA 100120
14,0	18,5	3,6	RVA 100140
15,0	19,5	3,6	RVA 100150
16,0	20,5	3,6	RVA 100160
18,0	22,5	3,6	RVA 100180
20,0	26,2	4,8	RVA 200200
22,0	28,2	4,8	RVA 200220
25,0	31,2	4,8	RVA 200250
28,0	34,2	4,8	RVA 200280
30,0	36,2	4,8	RVA 200300
32,0	38,2	4,8	RVA 200320
35,0	41,2	4,8	RVA 200350
36,0	42,2	4,8	RVA 200360
40,0	49,4	7,1	RVA 300400
42,0	51,4	7,1	RVA 300420
45,0	54,4	7,1	RVA 300450
48,0	57,4	7,1	RVA 300480
50,0	59,4	7,1	RVA 300500
52,0	61,4	7,1	RVA 300520
55,0	64,4	7,1	RVA 300550
56,0	65,4	7,1	RVA 300560
60,0	69,4	7,1	RVA 300600
63,0	72,4	7,1	RVA 300630
65,0	74,4	7,1	RVA 300650
70,0	79,4	7,1	RVA 300700
75,0	84,4	7,1	RVA 300750
80,0	89,4	7,1	RVA 300800
85,0	94,4	7,1	RVA 300850
90,0	99,4	7,1	RVA 300900
95,0	104,4	7,1	RVA 300950
100,0	109,4	7,1	RVA 301000
105,0	114,4	7,1	RVA 301050
110,0	119,4	7,1	RVA 301100

115,0	124,4	7,1	RVA 301150
120,0	132,2	9,5	RVA 401200
125,0	137,2	9,5	RVA 401250
130,0	142,2	9,5	RVA 401300
135,0	147,2	9,5	RVA 401350
140,0	152,2	9,5	RVA 401400
150,0	162,2	9,5	RVA 401500
160,0	172,2	9,5	RVA 401600
170,0	182,2	9,5	RVA 401700
180,0	192,2	9,5	RVA 401800
190,0	202,2	9,5	RVA 401900
200,0	212,2	9,5	RVA 402000
210,0	222,2	9,5	RVA 402100
220,0	232,2	9,5	RVA 402200
230,0	242,2	9,5	RVA 402300
240,0	252,2	9,5	RVA 402400
250,0	262,2	9,5	RVA 402500
280,0	292,2	9,5	RVA 402800
300,0	312,2	9,5	RVA 403000
320,0	332,2	9,5	RVA 403200
350,0	362,2	9,5	RVA 403500
360,0	372,2	9,5	RVA 403600
400,0	412,2	9,5	RVA 404000