Nitrile Rubber O Rings

Description

Nitrile Rubber O Ring Supplier India | NBR / Buna-N | Standard & Custom Sizes | KELOR Ahmedabad

Supplier: Krishna Industries (KELOR) – Ahmedabad, Gujarat, India
Established: 2017 | GSTIN: 24AKLPP6499B1ZT
MOQ: 1000 Nos | Material: NBR / Buna-N | Hardness: 60–90 Shore A

Nitrile Rubber O Ring Supplier in India

Krishna Industries (KELOR), based in Ahmedabad, Gujarat, supplies Nitrile Rubber O Rings (NBR O Rings / Buna-N O Rings) in standard metric and inch sizes — 70 Shore A standard hardness — -20°C to +120°C temperature range — resistant to petroleum oil, hydraulic fluid, diesel, and lubricants — black standard colour — custom sizes available as per drawing or sample. Supplied across India with GST invoice and MOQ 1000 Nos.

O rings are frequently ordered alongside valve supplies — butterfly valves, ball valves, check valves, Y strainers, and gate valves — as replacement seals, maintenance stock, or fitment components for flanged joints and valve assemblies. Krishna Industries supplies both valves and associated O rings in a single consolidated order, simplifying procurement for plant maintenance teams and EPC contractors.

Technical Specifications

Media Compatibility — What NBR O Rings Resist

For steam service: specify EPDM O rings. For aggressive chemical or solvent service: specify FKM (Viton) O rings. Krishna Industries supplies EPDM and FKM O rings on request — mention your media and temperature when placing order.

Common Use Alongside Valves

• Butterfly valve body seals — NBR seat ring replacement for CI butterfly valves in water and general utility service
• Ball valve stem seals — NBR O ring stem packing for three piece ball valves in oil and hydraulic service
• Flanged joint gaskets — NBR O ring face seal for raised face flanges in hydraulic and fuel oil lines
• Y strainer cover seals — NBR O ring for strainer cover/plug seal in oil service
• Check valve disc seals — NBR disc seat seal for wafer check valves in pump discharge lines
• Actuator seals — NBR piston and stem seals for pneumatic and hydraulic actuators

Applications

• Hydraulic systems — cylinders, pumps, control valves, accumulators — NBR is the standard seal for mineral oil hydraulic systems
• Pneumatic systems — compressed air cylinders, actuators, fittings — NBR standard for dry or lightly lubricated air
• Pump sealing — centrifugal and reciprocating pumps handling oil, fuel, or water
• Automotive and engineering workshops — engine oil seals, fuel system seals, gearbox seals
• Water treatment plants — general pipeline sealing in ambient temperature water service
• Industrial machinery maintenance — replacement O ring stock for plant maintenance departments

Ordering — Single Supplier for Valves and O Rings

Plant maintenance teams and EPC procurement departments can order Nitrile Rubber O Rings from Krishna Industries in the same order as butterfly valves, ball valves, check valves, gate valves, and Y strainers — single GST invoice, single dispatch, single point of contact. Specify size (ID × cross-section in mm, or AS 568 dash number), quantity, and hardness (default 70 Shore A if not specified). Custom sizes supplied as per drawing or sample with lead time.

WhatsApp RFQ: Send size list and quantity to +91 93135 43530 for bulk pricing within 2 hours.
GST Invoice: GSTIN 24AKLPP6499B1ZT
MOQ: 1000 Nos | Dispatch: Pan India

Frequently Asked Questions

1. What sizes are available?

Standard metric sizes per DIN 3771 / ISO 3601 and inch sizes per AS 568 are available from stock. Custom sizes — specify ID (inner diameter), CS (cross-section diameter), and hardness — are supplied as per drawing or sample.

2. What hardness is standard?

70 Shore A is the standard hardness for general industrial use. 60 Shore A (softer — better sealing on rough surfaces) and 80–90 Shore A (harder — better for high pressure and extrusion resistance) are available on request.

3. Can NBR O rings be used for steam?

No — NBR has poor resistance to steam and hot water above 80°C. For steam service, specify EPDM O rings. Krishna Industries supplies EPDM on request.

4. Can you supply alongside a valve order?

Yes — O rings, valve seats, and gaskets can be included in the same order as valves. Single consolidated GST invoice. Mention O ring requirements in your valve RFQ.

5. What is the MOQ?

MOQ is 1000 Nos. Bulk quantities welcome — pricing improves at 10000 Nos and above.

6. Do you supply FKM / Viton O rings?

Yes, on request. FKM (Viton) O rings for aromatic solvent, aggressive chemical, and high temperature service — and EPDM O rings for steam, hot water, and ozone service — are available. Specify media and temperature in your RFQ.