• Hongum Technology (Shanghai) Co., Ltd
    Linda.M
    Since collaborating with Hongum in 2020, their marine-grade rubber diaphragms and industrial shock absorbers have delivered zero-failure performance, ensuring uninterrupted operations for our port cranes, dredger propulsion systems, and LNG carrier equipment.
Contact Person : Sophia Lau
Whatsapp : +8617717306066

Sulfur Cured Natural Rubber Valve Diaphragm High Elasticity 55 Shore A Pneumatic Actuator OEM

Place of Origin Guangdong, China
Brand Name WNRLN
Certification ISO 9001:2015
Model Number VRD-NR-SC55
Minimum Order Quantity 100 Pieces
Price USD 0.60-5.00 / Piece
Packaging Details Bulk polybag packaging, export-grade corrugated carton
Delivery Time 3-5 days for stock, 10-15 days for production
Payment Terms T/T, L/C, PayPal, Western Union
Supply Ability 150000 Pieces per Month
Product Details
Material NR (Natural Rubber) Curing Sulfur Cured
Hardness 55 +/-5 Shore A Elongation At Break Up To 600%
Tensile Strength 18 MPa Minimum Temperature Range -50C To +80C
Color Black
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Sulfur cured rubber valve diaphragm

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High elasticity pneumatic actuator diaphragm

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OEM natural rubber valve diaphragm

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Product Description

Sulfur Cured Natural Rubber Valve Diaphragm

Traditional sulfur-cured natural rubber (NR) diaphragm providing best-in-class elasticity and tensile strength at competitive pricing. The preferred choice for pneumatic actuator and general industrial valve applications where cost-effectiveness is key.

Key Features

  • Material: Natural Rubber (NR), sulfur cured
  • Elasticity: Maximum elongation at break (up to 600%)
  • Hardness: 55 ±5 Shore A for optimal flexibility
  • Tensile Strength: ≥18 MPa
  • Temperature Range: -50°C to +80°C
  • Cost Efficiency: Most economical diaphragm material option
  • Reinforcement: Nylon fabric insert available
  • OEM: Custom sizes and shapes per drawing

Applications

Pneumatic actuator diaphragms, general industrial control valves, water distribution systems, air-operated equipment, and applications where extreme chemical resistance is not required.

Quality Assurance

Standard dimensional inspection and tensile testing per batch. ISO 9001:2015 certified manufacturing.