HBCartex Dual Seal

Mechanical seal H-brinker

HBCartex Dual Seal

Operating range Mechanical seal HBCartex Dual Seal

Shaft diameter: d1 = 25 … 100 mm (1.000″ … 4.000″ Other sizes on request
Temperature: t= -40 °C … 220 °C (-40 °F … 428 °F) (Check O-Ring resistance)

Sliding face material combination BQ1
Pressure: p1 = 25 bar (363 PSI)
Sliding velocity: vg = 16 m/s (52 ft/s)

Sliding face material combination Q1Q1 or U2Q1
Pressure: p1 = 20 bar (290 PSI)
Sliding velocity: vg = 10 m/s (33 ft/s)
Barrier fluid circulation system:
p3max = 25 bar (363 PSI) Δp (p3 – p1)ideal = 2 … 3 bar (29 … 44 PSI), 7 bar (102 PSI) for barrier media with poor lubricating properties.
Pump startup: Δp (p3 – p1)max = 25 bar (363 PSI) allowed
Recommended supply medium: max. ISO VG 5
Axial movement: ±1.0 mm, d1 ≥75 mm ±1.5 mm

Table of Mechanical seal descriptions HBCartex Dual Seal

Item	Description
1	Seal face
2, 5, 7, 10, 13, 15	O-Ring
3	Spring
4	Seat
6	Shaft sleeve
8	Cover
9	Seal face
11	Spring
12	Seat
14	Drive collar
16	Set screw
17	Snap ring
18	Assembly fixture
19	Hex socket head screw
20	Gasket
21	Screw plug
22	Gasket

Features Seal HBCartex Dual Seal

Dual seal
Cartridge
Balanced
Independent of direction of rotation
Double pressure balanced
Integrated pumping device
Variants available: for eccentric screw pumps (-Vario) and gas-lubricated version (-GSDN)

Advantages mechanical seal HBCartex Dual Seal

Ideal seal for standardizations
Universal applicable for packings conversions, retrofits or OEM
No dimensional modification of the seal chamber (centrifugal pumps) necessary, small radial installation height
No damage of the shaft by dynamically loaded O-Ring
Extended service life
No damage caused by dirt entered during assembly
Straightforward and easy installation due to pre-assembled unit
Individual adaptation to pump design possible
Customer specific versions available

Materials Seal HBCartex Dual Seal

Seal face: Silicon carbide (Q1), Carbon graphite resin impregnated (B), Tungsten carbide (U2)
Seat: Silicon carbide (Q1)
Secondary seals: FKM (V), EPDM (E), FFKM (K), Perfluorocarbon rubber/PTFE (U1)
Springs: Hastelloy® C-4 (M)
Metal parts: CrNiMo steel (G), CrNiMo cast steel (G)

Recommended applications seal HBCartex Dual Seal

Petrochemical industry
Chemical industry
Pharmaceutical industry
Power plant technology
Pulp and paper industry
Mining industry
Food and beverage industry
Sugar industry
Universally applicable
Centrifugal pumps
Eccentric screw pumps

Dimension Table Seal HBCartex Dual Seal

d₁	d₂	d₃min.	d₃ max.	l₄	l₅	l₆	l₇	a₂	d_a	s
25	43.0	44.0	51.5	25.4	86.5	53.4	33.1	62	105	13.2
28	46.0	47.0	52.0	25.4	86.5	53.4	33.1	61	105	13.2
30	48.0	49.0	56.0	25.4	86.5	53.4	33.1	67	105	13.2
32	49.8	51.0	57.0	25.4	86.5	53.4	33.1	70	108	13.2
33	49.8	51.0	57.0	25.4	86.5	53.4	33.1	70	108	13.2
35	53.0	54.0	61.5	25.4	86.5	53.4	33.1	72	113	13.2
38	56.0	57.0	66.0	25.4	86.5	53.4	33.1	75	123	13.2
40	58.0	59.0	68.0	25.4	86.5	53.4	33.1	77	123	14.2
42	60.5	61.5	69.5	25.4	86.5	53.4	33.1	80	133	14.2
43	60.5	61.5	70.5	25.4	86.5	53.4	33.1	80	133	14.2
45	62.5	64.0	73.0	25.4	86.5	53.4	33.1	82	138	14.2
48	65.6	67.0	75.0	25.4	86.5	53.4	33.1	85	138	14.2
50	68.0	69.0	78.0	25.4	86.5	53.4	33.1	87	148	14.2
53	72.0	73.0	87.0	25.4	86.5	53.4	33.1	97	148	18.0
55	73.0	74.0	83.0	25.4	86.5	53.4	33.1	92	148	18.0
60	78.0	79.0	91.0	25.4	86.5	53.4	33.1	102	157	18.0
65	84.8	85.7	98.5	25.4	86.5	53.4	33.1	109	163	18.0
70	93.0	95.0	108.0	25.4	86.5	53.4	33.1	118	178	18.0
75	100.0	101.6	118.0	28.0	108.0	63.9	44.1	129	190	18.0
80	106.4	108.0	124.0	28.0	108.0	63.9	44.1	135	195	18.0
85	109.5	111.1	128.0	28.0	108.0	63.9	44.1	139	198	22.0
90	115.9	117.5	135.0	28.0	108.0	63.9	44.1	145	205	22.0
95	119.1	120.7	138.0	28.0	108.0	63.9	44.1	148	208	22.0
100	125.4	127.0	144.0	28.0	108.0	63.9	44.1	154	218	22.0