| Customization: | Available |
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| Structure: | Single End |
| Pressure: | High Pressure Mechanical Seals |
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(1)Features
• Single seal
• Cartridge unit available
• Design acc. to API 682/ISO 21049
• Category 2 and 3, Type A, Arrangement 1
• Independent of direction of rotation
• Rotating multiple springs
• Integrated pumping device available (H75VP)
(2)Advantages
• "Low-Emission-Seal" acc. to the American STLE-limits
• Universally applicable both for retrofits or original equipment
• Efficient stock-keeping due to standardized components
• Extended selection of materials
• Extended field of operation in terms of temperature and pressure
• Metal parts also in special materials available
(3)Operating range (see note on page 1)
Shaft diameter: d = 20 ... 110 mm (0.79" ... 4.33")*
Pressure: p1 = 40 bar (580 PSI)
Temperature: t = -40 °C ... +220 °C (-40 °F ... +428 °F)
Sliding velocity: vg = 23 m/s (75 ft/s)
Axial movement: ±2.0 ... 4.0 mm depending on diameter and installation situation
* Other sizes on request
(4)Materials
Seal face: Carbon graphite antimony impregnated (A)
Seat: Silicon carbide (Q1, Q2)
Secondary seals: EPDM (E), NBR (P), FKM (V), FFKM (K)
Springs: Hastelloy® C-4 (M)
Metal parts: CrNiMo steel (G), Duplex (G1)
Hastelloy® C-4 (M)
(5)Standards and approvals
• API 682/ISO 21049
(6)Recommended applications
• Refining technology
• Petrochemical industry
• Oil and gas industry
• Light hydrocarbons
• API 610/ISO 13709 pumps
• Process pumps
(7)Item Description
1.1.1 Seal face
1.1.2 Driver
1.1.3 Thrust ring
1.1.4, 1.3 O-Ring
1.1.5 Sleeve
1.1.6 Spring
1.1.7 Set screw
1.2 Seat
2 Shaft sleeve
4 Housing
5 Insert
7 Throttle ring
9 Washer
10 Assembly fixture
11 Hexagon bolt
12 Set ring
13 Set screw
(8)Product variants
H75VP
Dimensions, items and descriptions as H75VN, but with
pumping ring. Shorter installation length possible.
H75N
Dimensions, items and descriptions as H75VN.
Seal face: Silicon carbide (Q1, Q2)
Seat: Silicon carbide (Q1, Q2)
Dimensions in mm
| API/d1 | API/d2 | API/d3 | API/d4 | d5 | d6 | L4 | L5 | L(6) | L7 | L11 | Overall length |
| 20 | 70.0 | 105.0 | 85.0 | 50.0 | 138.0 | 95.0 | 94.0 | 1.0 | 76.0 | 6.0 | 100 |
| 30 | 80.0 | 115.0 | 95.0 | 62.0 | 148.0 | 100.5 | 98.0 | 2.5 | 77.0 | 6.0 | 104 |
| 40 | 90.0 | 125.0 | 105.0 | 72.0 | 158.0 | 105.5 | 98.5 | 7.0 | 77.5 | 6.0 | 125 |
| 50 | 100.0 | 140.0 | 115.0 | 86.0 | 168.0 | 111.5 | 99.5 | 12.0 | 78.5 | 6.0 | 140 |
| 60 | 120.0 | 160.0 | 135.0 | 99.0 | 188.0 | 120.5 | 102.0 | 18.5 | 81.0 | 6.0 | 160 |
| 70 | 130.0 | 170.0 | 145.0 | 109.0 | 198.0 | 124.5 | 106.0 | 18.0 | 81.0 | 6.0 | 170 |
| 80 | 140.0 | 180.0 | 155.0 | 119.0 | 208.0 | 129.0 | 106.0 | 23.0 | 81.0 | 6.0 | 180 |
| 90 | 160.0 | 205.0 | 175.0 | 129.0 | 238.0 | 129.0 | 106.0 | 23.0 | 81.0 | 6.0 | 205 |
| 100 | 170.0 | 215.0 | 185.0 | 153.0 | 248.0 | 133.0 | 109.0 | 24.0 | 81.0 | 6.0 | 215 |
| 110 | 180.0 | 225.0 | 195.0 | 168.0 | 258.0 | 133.0 | 109.0 | 24.0 | 81.0 | 6.0 | 225 |
Dimensions in inch
| API/d1 | API/d2 | API/d3 | API/d4 | d5 | d6 | L4 | L5 | L(6) | L7 | L11 | Overall length |
| 0.787 | 2.756 | 4.134 | 3.346 | 1.969 | 5.433 | 3.74 | 3.701 | 0.039 | 2.992 | 0.236 | 3.937 |
| 1.181 | 3.15 | 4.528 | 3.74 | 2.441 | 5.827 | 3.957 | 3.858 | 0.098 | 3.031 | 0.236 | 4.094 |
| 1.575 | 3.543 | 4.921 | 4.134 | 2.835 | 6.22 | 4.154 | 3.878 | 0.276 | 3.051 | 0.236 | 4.921 |
| 1.969 | 3.937 | 5.512 | 4.528 | 3.386 | 6.614 | 4.39 | 3.917 | 0.472 | 3.091 | 0.236 | 5.512 |
| 2.362 | 4.724 | 6.299 | 5.315 | 3.898 | 7.402 | 4.744 | 4.016 | 0.728 | 3.189 | 0.236 | 6.299 |
| 2.756 | 5.118 | 6.693 | 5.709 | 4.291 | 7.795 | 4.902 | 4.173 | 0.709 | 3.189 | 0.236 | 6.693 |
| 3.543 | 5.512 | 7.087 | 6.102 | 4.685 | 8.189 | 5.079 | 4.173 | 0.906 | 3.189 | 0.236 | 7.087 |
| 3.543 | 6.299 | 8.071 | 6.89 | 5.079 | 9.37 | 5.079 | 4.173 | 0.906 | 3.189 | 0.236 | 8.071 |
| 3.937 | 6.693 | 8.465 | 7.283 | 6.024 | 9.764 | 5.236 | 4.291 | 0.945 | 3.189 | 0.236 | 8.465 |
| 4.331 | 7.087 | 8.858 | 7.677 | 6.614 | 10.157 | 5.236 | 4.291 | 0.945 | 3.189 | 0.236 | 8.858 |
We have large stock, so our delivery is very fast.
For example,if products are standarded, the delivery time is one week.
Our company and factory addrss: Ningbo City, Zhejiang Province,China.
Our city has a large port and an airport, so its transportation is very convenient.
Question1: What are the prices of your products?
Answer: For each model, the unit price is listed on the website, but what is displayed on the website is only the average market price. For specific models, you can contact us for further consultation and negotiation.
Question 2: Are you a factory or a trade company?
Answer: We are a factory with top sales for the trade service.
Question 3: What is the minimum order quantity for each order?
Answer: For products of regular models, the minimum order quantity is at least five. We welcome you to test the quality of our products and services through placing trial orders. Looking forward to the long-term cooperation with you.
Question4: What is your company's service tenet?
Answer: Quality first, service upmost. We promises that if there is any problem with the quality of the product, or if the product is damaged during the transportation, our company will be responsible for compensation, regardless of the ordder turnover value.
Question5: Can I try to get a SAMPLE before the order?
Answer: Sure. Our company will provide you with samples for free, but you will have to pay for the international delivery (freight collect payment).
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