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Springs Rotating Balanced Mechanical Seals Burgmann Type

Name: Springs Rotating Balanced Mechanical Seals Burgmann Type
Brand: china-manufacturer-directory.com
SKU: 712995025
Availability: InStock
Rating: 4.3 (74 reviews)

Price:	US $ 34.5-159.90/Set
Trade Terms:	FOB,CFR,CIF
Min Order:	10/Piece
Pay Type:	L/C,T/T,D/P

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Showroom Product Company Profile

Features:

1. QHH74D type mechanical seals comply with ISO3069 standard, DIN24960, GB/T 6556 standards.
2. For stepped shafts
3. double seals
4. Balanced seal
5. Multiple springs rotating
6. Independent of direction of rotation
7. Seal concept based on the H7 range.
8. Variant with pumping screw available (H74F-D)

Advantages

1. Universal applications(standard mechanical seal)
2. Excellent compensation functioning equivalent, effective pressurization
3. Interchangable faces to keep it available easily
4. Extended selection of materials
5. Flexibility in torque transmissions
6. Insensitive to low solids contents
7. High pressure operating conditions are agreeable.
8. Axial loaded O-ring dynamically, easy and smooth, damage free
EN 12756 (For connection dimensions d1 up to 100 mm (3.94"))
9. Clean assembly
10. Long product lifecycle
11. Installation faults were avoided, damage- free and cost-effective.
12. Straightforward and easier specification for pre-assembly unit
13. Time saving( reduced down-time)
14. Self cleaning effect; Short Installation length possible (G16)
15. Individual adaptation is subject to pump's design and style.
16. Customized products(OEMs) are available

Recommended applications

1. Chemical industry
2. Special rotating equipment, mainly industrial process pumps
3. Pharmaceutical industry
4. Water treatment and sewage proposal
5. Petrochemical industry
6. Pulp and paper industry
7. Refining technology
Low solids content and low abrasive medium
Toxic and hazardous medium
Medium with poor lubrication properties
Adhesives
Chemical standard pumps

Technical specifications

ItemPart no. To DIN 24250Description
1.1472.1Seal face
1.2472.2Seal face
1.3474Thrust ring
1.4485Drive collar
1.5477Spring
1.6904Set screw
1.7412.1O-Ring
1.8412.2O-Ring
2475.1Seat (G9)
3412.3O-Ring
4475.2Seat (G9)
5412.4O-Ring
1) d1 > 100 mm: 2 mm X 30°
2) d1 > 100 mm: 30°
3) d1 > 100 mm: H7
4) d1 > 100 mm: +0.1

Conditions and Operating range

Sealed medium: liquid oxygen, methane, ethane, and so on liquid hudrocarbon, liquid natural gas

Shaft diameter: D1 = 14...200 mm (0.55" 7.87")
Pressure:
P1 = 80 bar (1, 160 PSI) for d1 = 14...100 mm,
P1 = 25 bar (363 PSI) for d1 = 100...200 mm,
P1 = 16 bar (232 PSI) for d1 > 200 mm
Temperature: T = -50 ° C...220 ° C (-58 ° F 428 ° F)
Sliding velocity: Vg = 20 m/s (66 ft/s)
Axial movement:
D1 up to 100 mm: ± 0.5 mm
D1 from 100 mm: ± 2.0 mm

Materials:

Metal parts: 316,304,2Cr13, multiple springs
Frictions components: Silicon carbide or hard alloy, Carbon graphite

Prod Model:	QHH74-D Burgmann type Mechanical Seals
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Style:	Springs Balanced Mechanical Seal Burgmann Type
Materials:	Metal Silicon Carbide or Hard Alloy
Applications 1:	Pump Seal
Applications 2:	Mechanical Seals for Chemical, Oil
Applications 3:	Special Rotating Shaft Mechanical Seals
Applications 4:	Centrifugal Pumps Mechanical Seals
Standard:	Standard
Performance:	Springs Balanced Mechanical Seals for Chemical Oil
Type:	Qh74D

Company Profile

Hangzhou Qinghua Industrial Co., Ltd. is a modernized manufacturer. Founded in 2006, her total assets raised up to 60million RMB, including 5.88million RMB of the registered capital. It covers an area of 12, 000 SQMs. The organization possesses standard modernized factory, science& research center, company building, which include 10, 000 SQMs areas totally, and an excellent technical group.

Qinghua has cultivated the image of a high-tech organization, Which is in combination of designing and manufacturing mechanical seals, an emerging industry in China, vending and offering after-service as well as integrating product's research. Through more than 100 staffs' hardworking, the company has got great achievement, manufacturing 50, 000 units annually. The yearly sales' amount is about 5 million USD, demonstrating Qinghua's worldwide offers and services to Asia, Europe, Africa, America, and the rest of world.

A strong research team, which consist of 3 professionals, 12senior engineers and engineers and 40 technicians in our company, helps us to aim at " Quality-oriented, Scientific management, Customer satisfaction, Creativeness". Thanks to their efforts, we have achieved 8 inventions and utility model patents, qualified by State Intellectual Property Bureau, for example Desulphurization Main Circulating Pump mechanical seals, High Speed Boiler (feed water) Pump mechanical seals, etc.

Following the successful partnership with Kingda Pump Industry Group and its research center, organization has established perfect quality control system, which is qualified to ISO9001: 2008 quality certification. Meanwhile, the cooperation in science and technology with Dynamical System Institute, Dalian University of Technology, was great significant for them to be entitled to China's National Industrial Production Licences by General Administration of Quality Supervision, Inspection and Quarantine(AQSIQ) of China, ensuring product quality, which was increasingly upgraded from then on. As a result, they got good recognition in the industry.

In recent years, our business scaled up investment drive as well as production campaign. We bought in Japanese MAZAK NC Lathe with full function and AUTO practice, 4meters double column vertical lathe, 1.8m CNC boring machines in our CNC processing center. As for product quality control, we strengthened quality management, upgraded low, medium, high speed test equipment, created ultrahigh speed test unit, running on a high level.

Networking and activities play a vital role in our company. As a member of China's General Mechanical Pump Association, China's Hydraulics(or pneumatics) and seal Industry Association, and China's Iron and Steel Association, we took part in many business activities to exchange and cooperate with customers. We are qualified supplier for Guodian company and Huadian company, two China's electricity giants.

We have been supplying air separation plants' units for Hangyang Group, supporting mechanical seals for Shengu Group, including petrochemical pumps, high pressure boiler(feed) pumps for several years. We also provided services for Kingda Pump Industry Group Co., Ltd., for example, mechanical seals for desulphurization pump, slurry pump, dredging pump, clean water pump and other machines' sealing units. What is more, mechanical seals for Xiangfan 525 Pump Industry Co., Ltd., Baogang group, Hengyi group, Tianmen pump company, Xiaoshan power plant.

Now we have developed a variety of mechanical seals for industrial purposes, involving pump seal, compressor seal, which allow widespread applications and comprehensive practices, ranging metallurgy, mine, petroleum, chemical, electric power, alumina, paper making, shipbuilding, coal chemical, sewage treatment, biological pharmaceutical industries. We provided premium quality equipment, spare parts, and other services to our customers, gained a good reputation from users.