GD Mechanical Seal for Water Pumps, Vacuum Pumps

• Structure: Single End
• Pressure: Medium Pressure Mechanical Seals
• Speed: High-Speed Mechanical Seal
• Temperature: Temperature Mechanical Seal
• Performance: Wear
• Standard: Standard
• Model NO.: GD- Mechanical Seal M7N M74
• Type: HQ901
• Balance: Balanced
• Transport Package: Carton Box
• Specification: customize
• Trademark: OEM
• Origin: China
• HS Code: 8484200090

Product Description

Product Description

Basic characteristics

Structure: single end

Pressure: normal pressure

Speed: high speed

Temperature: normal temperature

Characteristics: wear-resistant


Standards: DIN24960, ISO3069, GB6556


Model: M7N, M74, M74D (double sealed)


Balanced: unbalanced


Shaft diameter range: 20 mm to 300 mm


Detailed Product Description

M7N and M74 mechanical seals are used for chemical centrifugal pumps, Kaiquan pumps, double suction pumps and other pump rotating equipment.



Structural features: single end, wave spring (M7N), multi spring (M74), unbalanced, arbitrary rotation, ear driven mechanical seal. The mechanical seal has simple transmission mode and strong universality. M7N wave spring structure is suitable for high concentration medium with particles or crystals. M74 has simple structure, and the compensation components are pre assembled. This type of mechanical seal is easy to install and has excellent compensation performance. The end load is balanced, and the sealing performance is reliable and stable.



The default design of M7N and M74 is square ear drive. According to the user's feedback, the square ear drive may cause damage to the drive ear and moving ring in case of emergency startup or sudden stop of the equipment under certain working conditions. According to this feedback,GD Seal has improved the design of the transmission ear, forming a new M74R design, changing the transmission ear from square to circular arc, effectively avoiding and reducing the possible damage to the transmission ear and dynamic ring sealing surface caused by emergency startup or sudden stop, and improving its reliability by 70%.



Executive standards: DIN24960, ISO3069, GB6556



Application field: widely used in chemical industry, oil refining, petrochemical, sewage treatment, pharmaceutical and food processing industries. This mechanical seal is generally matched with chemical pumps, water pumps, screw pumps, sewage pumps, double suction pumps, paper making equipment and other rotating equipment.

 

Operating parameters:

Working pressure: no more than 1.6 MPa

Operating temperature: - 40~200 º C

Linear speed: no more than 20 m/s

Material:

Moving ring sealing face: silicon carbide/tungsten carbide

Sealing surface of stationary ring: graphite/silicon carbide/tungsten carbide

Auxiliary seal: nitrile rubber/EPDM/fluororubber/perfluoroether rubber

Spring: SS304/SS316/PH17-4/HC-276 alloy

Metal parts: 410S/SS304/SS316/SS316L/Hastelloy

Medium: oil, water, inorganic acid, alkali, salt and other organic solvents and other high concentration media that are easy to crystallize or have impurity particles.



Customizable: Contact us to provide your customization requirements.

Detailed Photos

 

Company Profile

GD Sealing Mainly engaged in fluid mechanical seal reasearch and development,production and sales.

The company has domestic advanced manufacturing,testing equipment and professional technicians, the company integrates product research and development,production,matching, maintenance, transformation, technical service and integration,specialized in the production of various pumps,kettle machine seal and all kinds of non-standard mechanical seal research and development.

The products are mainly used in petroleum, chemical ,paper making, thermal power,nuclear power,metallurgy,pharmaceutical, food and other fields, is the first class supplier of sinopec and petro China.

The company insists on being led by scientific and technological innovation and scientific and standardized management, has the courage to participate in market competition and abides by the promise of technical support and after sales service.

"Persisting in winning by quality" is the tenet of our company, There is no best,only better, our company will use better products, the best performance to price ratio,more thoughtful service with you.

 

FAQ

Q1: Can I get some samples?
A: Yes, sample order is available for quality check and market test. But you have to pay the sample cost and express cost.

Q2: Do you receive customized order?
A: Yes, ODM & OEM are welcomed.

Q3: What's the lead time.
A: According to the order quantity, small order usually need 3-5 days, big order need negotiation.

Q4: What's your warranty terms?
A: We supply 12 months warranty time.

Q5: What's your payment terms?
A: We receive T/T, West Union, Cash and etc.

Q6: Are you a factory.
A: of course, we can customize your request. Our factory located in Suzhou, welcome to have a visit.