Single Sphere Rubber Joint Body / Rubber Bellows (Without Flanges)

• Application: HVAC Systems, Industrial Machinery, Plumbing, Water Treatment
• Certification: CE, ISO9001
• Diameter: DN32-DN1200
• Model NO.: KXT-Body Only
• Length: Standard
• Material: EPDM Rubber
• Transport Package: Woven Bag / Carton Box / Plywood Case
• Specification: DN32-DN1200
• Trademark: Baori Steel
• Origin: China
• HS Code: 4016999090
• Production Capacity: 50, 000 Pieces/Year

Product Description

Product Description

Overview of Single Sphere Rubber Joint Body

This listing is for the Rubber Body Only (Single Sphere Type). It is designed as a cost-effective replacement part for existing expansion joints or for distributors who assemble units locally.

Why Choose "Body Only"?
1. Huge Cost Saving: Save on the cost of carbon steel flanges if your existing flanges are still in good condition.
2. Low Shipping Cost: Without heavy steel flanges, the weight is reduced by 70%-80%, significantly lowering sea freight.
3. Universal Fit: The sealing bead area is designed to fit standard DIN / ANSI / JIS flanges perfectly.

Product Details

Product Name	Single Sphere Rubber Joint Body
Model	KXT-Body (Single Sphere)
Size Range	DN32 - DN1200
Rubber Material	EPDM (Standard for Water), NBR (For Oil), Natural Rubber
Reinforcement	Nylon Cord Fabric (High Tenacity)
Shape	Single Sphere (Standard), Double Sphere, Threaded Union Type
Working Pressure	Matches PN10 / PN16 / Class 150 Flanges
Burst Pressure	≥ 45 Bar (Safety Factor 3:1)
Temperature	≥ 45 Bar (Safety Factor 3:1)
Application	HVAC, Water Supply, Fire Fighting, Pump Connection
Customization	Available

Specification

1. What is included?
The listed prices are for the Rubber Body Only (EPDM), ranging from standard DN100 to DN500.
Carbon Steel Flanges are NOT included.
2. Bulk Discount:
We supply many overseas distributors who assemble the joints locally.

If you order more than 500 pcs, please contact us for a special Distributor Price List.

Specification	Price
DN100	$6.5
DN200	$18.0
DN500	$85.0
Customization	Negotiable

Application

 Heating, Ventilation, and Air Conditioning Systems

Water Supply & Plumbing Systems

Fire Fighting Systems

In large HVAC projects, contractors often source the carbon steel flanges locally to save costs. Buying our EPDM rubber bodies allows them to build complete expansion joints on-site at a fraction of the cost. It reduces vibration and noise from chillers, pumps, and air handlers.

For waterworks maintenance teams, it is often only necessary to replace the degraded rubber sphere. Reusing the original flanges saves time and money. Opt for our WRAS-approved EPDM compound to ensure safe potable water transmission.

Reliability is paramount for fire protection. Our Rubber Sphere bodies undergo rigorous testing (burst pressure test, aging test) to guarantee performance when needed most. Combine our rubber bodies with your existing UL/FM approved grooved couplings for a fast, code-compliant installation.

Production Showcase

Our Company

Company Profile

Shanghai Baori Steel Industries Co., Ltd, has established its significant 
presence in the metal manufacturing and fabrication industries. Since its 
establishment on Aug 03, 2023, the company has 
been committed to providing comprehensive and efficient 
fabrication solutions, focusing on the integration 
and optimization of steel supply services.

Company Address

Our company is located in Baoshan District, Shanghai, China.
Specific Location:

Room 403, Building 1, Lane 1588, Youyi Road, Baoshan District, Shanghai, China 

FAQ

Q: Does the price include flanges and bolts?
A: No. This listing is for the Rubber Body ONLY. It does NOT include carbon steel flanges or bolts. If you need a complete set, please check our other listings or contact us for a full quotation.

Q: Will this rubber body fit my existing flanges?
A: Yes. Our rubber bodies are designed with a Universal Sealing Bead. They fit perfectly with standard DIN PN10/16, ANSI 150LB, and JIS 10K flanges. You can easily assemble them with your local flanges.

Q: Is it difficult to assemble the rubber body into the flanges?
A: Not at all. Since the rubber is flexible, you can easily install the flanges onto the body by hand or using simple tools. No heavy machinery is required.

Q: How much can I save on shipping if I buy "Body Only"?
A: Significant savings! The rubber body accounts for only 20%-30% of the total weight of a complete joint. You can load 3-4 times more quantity in a container compared to shipping complete units with heavy steel flanges.

Q: Can you mark my brand on the rubber?
A: Yes, we support OEM Service. We can vulcanize your Brand Name, Logo, and Part Number directly onto the rubber surface during production, making it look like your own product.