Shanghai KOKA Industrial Co., Ltd.
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Cast Iron Flexible Threaded Rubber Expansion Joint
Products:Rubber Expansion Joint
A Rubber Expansion Joint is flexible connector fabricated of natural or synthetic elastomers,fluoroplastics and fabrics and, if necessary, metallic reinforcements used to absorb movements in a piping system while containing pressure and a medium running through it.
Advantages:
Reduced fatigue factor
Given the inherent characteristics of natural and synthetic elastomers, they are not subject to fatigue breakdown or embrittlement and prevent any electrolytic action because of the steel-rubber interface of joints and mating flanges.
Extraordinary resistance to abrasion and corrosion
A wide variety of natural, synthetic and special purpose elastomers and fabrics are available to the industry. Materials are treated and combined to meet a wide range of practical pressure/temperature operating conditions, corrosive attack, abrasion and erosion.
Minimal face-to-face dimensions while absorbing large movements
With a minimal face to face length the Rubber Expansion Joints provide superior movement capability in axial compression, axial extension,and lateral deflection, as well as in the angular and torsional direction.
Strutcture:
| Item | Parts | Material |
| 1 | Outer liner rubber | EPDM |
| 2 | Key Frame | Nylon cord fabric |
| 3 | Union | Cast iron |
Specification:
| Part.No. | Diam. (in.) | L(mm) | Allowable Movement(mm) | Operation Condition | |||||
| Axial Compression | Axial Elongation | Transverse Deflection | Angular Deflection | Max.Pressure kg/cm² | Max. Temperature (℃) | Vacuum Rating mm Hg(in.) | |||
| RJ30-12 | 1/2 | 200 | 22 | 6 | 22 | 45° | 10(150) | 60(140) | 405(16.20) |
| RJ30-34 | 3/4 | 200 | 22 | 6 | 22 | 45° | 10(150) | 60(140) | 405(16.20) |
| RJ30-1 | 1 | 200 | 22 | 6 | 22 | 45° | 10(150) | 60(140) | 405(16.20) |
| RJ30-114 | 1-1/4 | 200 | 22 | 6 | 22 | 45° | 10(150) | 50(122) | 405(16.20) |
| RJ30-112 | 1-1/2 | 200 | 22 | 6 | 22 | 45° | 10(150) | 40(104) | 405(16.20) |
| RJ30-2 | 2 | 200 | 22 | 6 | 22 | 45° | 10(150) | 30(86) | 405(16.20) |
| RJ30-212 | 2-1//2 | 240 | 22 | 6 | 22 | 45° | 10(150) | 20(68) | 405(16.20) |
| RJ30-3 | 3 | 240 | 22 | 6 | 22 | 45° | 10(150) | 20(68) | 405(16.20) |
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About KOKA:
Shanghai KoKa Industrial Co.,Ltd is a professional cable management systems (CMS) & Strut Framing systems and strut fitting systems solutions provider,manufacturer .
Based on over 15 years of engineering experience to the subways, airports, shopping malls, food, beverage, petrochemical ,and pharmaceutical industries, the KOKA production of stainless steel products has become a respected and specified brand to some of the world's most recognised organizations.
FAQ:
Q1: Are you manufacturer?
A: Yes,we are factory ,We have stamping and injection factories.
Q2: What services can we offer?
A: We can OEM and ODM,We have a strong design team,we can provide drawing.
Q3: What information need for quotation?
A: For example:
1: what material(carbon steel/Q235/SS304/SS316)
2: what size do you need ?
3: what surface finished( zinc plate/HDG/powder coating/copper plated)?
Q4: Do you provide free samples?
A: Yes ,you can get the free samples
Q5: What is your payment terms?
A: 30% T/T deposit,balance will be against each copy of B/L;
Q6: How about the delivery time?
A: According to your order list and quantity,Normally delivery in 20-25days.