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shirmeyx@dshseals.com
Hydraulic seals, Piston Seals , Oil Seals Manufacturer Supplier for over 20 years .
DNS is a single-acting or double-acting piston rotary seal consisting of a PTFE-filled friction ring and a pre-tightened rubber o-ring. It is commonly used with guide rings. Double acting piston seals for pivot movement in hydraulic systems; housing for ISO 7425/1 compliance; preferably for hydraulic connections and rotary connections. Rotary hydraulic transmission exists in engineering machinery, engineering machinery and other industries
And mobile devices. It seals the rod, shaft, pin, rotary distributor, hydraulic motor and rotary joint for rotary or swing movement. Double-acting rotary seal can withstand double-sided pressure or alternating pressure. Installed in a groove conforming to ISO 7425. Single-acting structure with higher speed.
DSH Seals’ DNS, or “rotary seal”, provides reliable and durable radial seal. These radial seals have very low friction coefficient to ensure the best long-term sealing.
In addition, the “rotary seal” with high pressure resistance (about 30 MPa) can withstand the sharp rise in temperature and is completely free from the stick-slip effect.
characteristic
Low friction coefficient; There is no stick-slip effect at startup.
Excellent wear resistance and extrusion resistance.
The groove provides an integrated lubrication system.
Excellent dimensional stability.
Highly resistant to hydraulic oil.
◆◆ PTFE, nbr/fkm rubber
| Material description | PTFE filled bronze, PTFE filled carbon fiber and MoS2, PTFE filled graphite PTFE filled PI, PTFE filled Ekonol, PU, etc. |
| Selective Color | Coffee, green, etc |
| Material strength | A two-piece sealing device for sealing piston rod, including a Teflon shaped ring and a pre-tightening O-ring of the element. advantage: 1. The double-acting rod seal is used for rotary movement in the hydraulic system, preferably for Hydraulic joint and rotary joint 2. Hydraulic resistance Strong oiliness and low friction 3. Non-slip short structure. |
| Temperature | -35~+200℃ |
| Velocity | ≤2m/s |
| Pressure | ≤30MPa |
| Applicable device | Rotary distributor/hinge device/mobile hydraulic equipment/machine tool, etc |
◆◆Rotary outer seal – DNS
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| Technical data | ||||||||||
| pressure | temperature | Sliding speed | medium | |||||||
| standard | ≤ 30 MPa | -35…+200℃ | ≤2m/s | Mineral oil-based hydraulic oil, non-flammable hydraulic oil, water, air, etc. | ||||||
| Material | ||||||||||
| O-ring | traveller | |||||||||
| standard | Nitrile rubber | PTFE Bronze | ||||||||
| Standard (as required) | Viton | Polytetrafluoroethylene carbon | ||||||||
| Ordering example of standard edition: | ||||||||||
| Diameter D=100mm | ||||||||||
| Order No.: DNS 100 * 89 * 4.2 | ||||||||||
| Installation dimension table is based on metric dimension (mm) | ||||||||||
| DH9 | dh9 | L +0.2 |
d1 | R≤ | C≥ | Maximum clearance E | ||||
| 100bar | 200bar | 300bar | ||||||||
| 8~39 | D-4.9 | 2.2 | 1.8 | 0.4 | 2个 | 0.15 | 0.1 | 0.05 | ||
| 40~79 | D-7.5 | 3.2 | 2.65 | 0.6 | 2.5 | 0.2 | 0.15 | 0.1 | ||
| 80~132 | D-11 | 4.2 | 3.55 | 1个 | 3.5 | 0.25 | 0.2 | 0.15 | ||
| 140~329 | D-15.5 | 6.3 | 5.3 | 1.3 | 5个 | 0.3 | 0.25 | 0.2 | ||
| 330~669 | D-21 | 8.1 | 7 | 1.8 | 6.5 | 0.45 | 0.3 | 0.25 | ||
| 670~999 | D-28 | 9.5 | 8.6 | 2.5 | 7.5 | 0.45 | 0.3 | 0.25 | ||
| 订单 | ||||||||
| 订单号 | DH9 | dh9 | L+0.2 | 订单号 | DH9 | dh9 | L+0.2 | |
| DNS0080 | 8 | 3.1 | 2.2 | DNS1700 | 170 | 154.5 | 6.3 | |
| DNS0100 | 10 | 5.1 | 2.2 | DNS1800 | 180 | 164.5 | 6.3 | |
| DNS0120 | 12 | 7.1 | 2.2 | DNS1900 | 190 | 174.5 | 6.3 | |
| DNS0150 | 15 | 10.1 | 2.2 | DNS2000 | 200 | 184.5 | 6.3 | |
| DNS0160 | 16 | 11.1 | 2.2 | DNS2100 | 210 | 194.5 | 6.3 | |
| DNS0180 | 18 | 13.1 | 2.2 | DNS2200 | 220 | 204.5 | 6.3 | |
| DNS0200 | 20 | 15.1 | 2.2 | DNS2400 | 240 | 224.5 | 6.3 | |
| DNS0220 | 22 | 17.1 | 2.2 | DNS2500 | 250 | 234.5 | 6.3 | |
| DNS0250 | 25 | 20.1 | 2.2 | DNS2800 | 280 | 264.5 | 6.3 | |
| DNS0280 | 28 | 23.1 | 2.2 | DNS3000 | 300 | 284.5 | 6.3 | |
| DNS0300 | 30 | 25.1 | 2.2 | DNS3200 | 320 | 304.5 | 6.3 | |
| DNS0320 | 32 | 27.1 | 2.2 | DNS3500 | 350 | 329 | 8.1 | |
| DNS0350 | 35 | 30.1 | 2.2 | DNS3600 | 360 | 339 | 8.1 | |
| DNS0380 | 38 | 33.1 | 2.2 | DNS4000 | 400 | 379 | 8.1 | |
| DNS0400 | 40 | 32.5 | 3.2 | DNS4200 | 420 | 399 | 8.1 | |
| DNS0420 | 42 | 34.5 | 3.2 | DNS4500 | 450 | 429 | 8.1 | |
| DNS0450 | 45 | 37.5 | 3.2 | DNS4800 | 480 | 459 | 8.1 | |
| DNS0480 | 48岁 | 40.5 | 3.2 | DNS5000 | 500 | 479 | 8.1 | |
| DNS0500 | 50 | 42.5 | 3.2 | DNS5200 | 520 | 499 | 8.1 | |
| DNS0520 | 52 | 44.5 | 3.2 | DNS5500 | 550 | 529 | 8.1 | |
| DNS0550 | 55 | 47.5 | 3.2 | DNS6000 | 600 | 579 | 8.1 | |
| DNS0600 | 60 | 52.5 | 3.2 | DNS6200 | 620 | 599 | 8.1 | |
| DNS0630 | 63 | 55.5 | 3.2 | DNS6300 | 630 | 609 | 8.1 | |
| DNS0700 | 70 | 62.5 | 3.2 | DNS6400 | 640 | 619 | 8.1 | |
| DNS0750 | 75 | 67.5 | 3.2 | DNS6500 | 650 | 629 | 8.1 | |
| DNS0800 | 80 | 69 | 4.2 | DNS6600 | 660 | 639 | 8.1 | |
| DNS0900 | 90后 | 79 | 4.2 | DNS6700 | 670 | 642 | 9.5 | |
| DNS1000 | 100 | 89 | 4.2 | DNS6800 | 680 | 652 | 9.5 | |
| DNS1050 | 105 | 94 | 4.2 | DNS7000 | 700 | 672 | 9.5 | |
| DNS1100 | 110 | 99 | 4.2 | DNS7200 | 720 | 692 | 9.5 | |
| DNS1150 | 115 | 104 | 4.2 | DNS7500 | 750 | 722 | 9.5 | |
| DNS1200 | 120 | 109 | 4.2 | DNS8000 | 800 | 772 | 9.5 | |
| DNS1250 | 125 | 114 | 4.2 | DNS8200 | 820 | 792 | 9.5 | |
| DNS1300 | 130 | 119 | 4.2 | DNS8500 | 850 | 822 | 9.5 | |
| DNS1400 | 140 | 124.5 | 4.2 | DNS9000 | 900 | 872 | 9.5 | |
| DNS1500 | 150 | 134.5 | 4.2 | DNS9500 | 950 | 922 | 9.5 | |
| DNS1600 | 160 | 144.5 | 6.3 | |||||
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