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Numaligarh · Glass, Ceramics & Refractory Industries

Valves for Glass, Ceramics & Refractory Industries — Numaligarh

Numaligarh Refinery Limited (NRL) — co-owned by Bharat Petroleum, Oil India Limited, and the Government of Assam — operates a 3 Mtpa refinery currently undergoing a major expansion to 9 Mtpa with integrated petrochemical units including a wax and bio-bitumen plant; NRL's greenfield expansion projects require API 6D ball valves, API 600 gate and globe valves, and check valves across all ISBL and OSBL units; Vajra Industrial Solutions supplies IBR-certified steam valves, API 6D Class 300–600 valves, and full API 598 test-certified valves for NRL expansion procurement, with delivery to Assam via road and rail from Vadodara within 7–10 business days.

Knife gate and pinch valves for ceramic slip and slurry, high-temperature butterfly valves for combustion air/gas in glass furnaces, and IBR gate valves for kiln cogeneration steam.

ASME B16.34IBR 1950 (Steam)API 609 (Butterfly)IS 6157 (Knife Gate)API 598
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Glass, Ceramics & Refractory Industries Valves — Available in Numaligarh

Knife Gate Valve

PN 6 / PN 10

Ceramic slip, glaze, and ball mill slurry isolation — knife gate cuts through fibrous and particulate-laden media

Materials: SS316L blade with WCB body; UHMWPE or natural rubber seat for ceramic slurry abrasion resistance  ·  Standards: IS 6157, ASME B16.34
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High-Temperature Butterfly Valve

PN 6 / PN 10

Combustion air and gas damper duty for glass tank furnaces and tunnel kilns — disc temperature to 600°C

Materials: A217 WC9 disc for high-temp combustion air; graphite packing; high-temperature spring-loaded seat  ·  Standards: EN 593, API 609, ASME B16.34
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Pinch Valve

PN 6 / PN 10

Abrasive ceramic slurry with high solid content — full-bore, no internal metal contact with abrasive slurry

Materials: WCB or SS316 body; natural rubber or EPDM sleeve; pneumatic or handwheel actuation  ·  Standards: ASME B16.34
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Gate Valve (IBR Steam)

Class 300 / 600

Cogeneration boiler and lehr steam humidity control — IBR Form III mandatory for Indian glass plants

Materials: A216 WCB; SS316 stem; graphite packing for high-temperature steam  ·  Standards: IBR 1950, ASME B16.34, API 600
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Glass, Ceramics & Refractory Industries Industry in Numaligarh

Numaligarh Refinery Limited (NRL) — co-owned by Bharat Petroleum, Oil India Limited, and the Government of Assam — operates a 3 Mtpa refinery currently undergoing a major expansion to 9 Mtpa with integrated petrochemical units including a wax and bio-bitumen plant; NRL's greenfield expansion projects require API 6D ball valves, API 600 gate and globe valves, and check valves across all ISBL and OSBL units; Vajra Industrial Solutions supplies IBR-certified steam valves, API 6D Class 300–600 valves, and full API 598 test-certified valves for NRL expansion procurement, with delivery to Assam via road and rail from Vadodara within 7–10 business days.

Oil RefiningPetrochemicalNatural Gas PipelineCrude Oil Exploration

Critical Valve Requirements

Ceramic slurry valves — abrasion resistance is primary selection criterion; hardened UHMWPE or ceramic-lined seats; knife gate or pinch valve design
Natural gas to glass furnace — fire-safe ball valves per API 607 on gas supply; solenoid-operated ESD for automatic shut-off on furnace trip
High-temperature combustion air damper — graphite or metallic packing; no PTFE or elastomers above 250°C
IBR certification for all steam valves above 3.5 kg/cm² — Form III-C and III-E mandatory for Indian plants
CIP of ceramic spray lines — caustic soda cleaning; EPDM or UHMWPE seats resist caustic soda in slurry lines
Large-bore combustion air — butterfly valves DN300–DN1200 for furnace combustion air; ensure no air leak on closure

Why Numaligarh's Oil Refining Sector Needs Glass, Ceramics & Refractory Industries Valves

Numaligarh Refinery Limited (NRL) — co-owned by Bharat Petroleum, Oil India Limited, and the Government of Assam — operates a 3 Mtpa refinery currently undergoing a major expansion to 9 Mtpa with integrated petrochemical units including a wax and bio-bitumen plant; NRL's greenfield expansion projects require API 6D ball valves, API 600 gate and globe valves, and check valves across all ISBL and OSBL units; Vajra Industrial Solutions supplies IBR-certified steam valves, API 6D Class 300–600 valves, and full API 598 test-certified valves for NRL expansion procurement, with delivery to Assam via road and rail from Vadodara within 7–10 business days. Key facilities in the Numaligarh area — including Numaligarh Refinery Limited (NRL) — 3 Mtpa expanding to 9 Mtpa, OIL (Oil India Limited) Duliajan fields, IGGL Indradhanush Gas Grid (northeast India) — rely on Knife Gate Valve for their natural gas pipeline operations. Vajra Industrial Solutions supplies Knife Gate Valve, High-Temperature Butterfly Valve, Pinch Valve, Gate Valve (IBR Steam) for glass, ceramics & refractory industries projects across Assam, with full ASME B16.34 and IBR 1950 (Steam) compliance documentation — EN 10204 3.1 material test certificates, API 598 pressure test reports, and third-party inspection co-ordination available for every order.

Delivery to Numaligarh

Vajra Industrial Solutions offers delivery to Numaligarh in 3–7 business days. Emergency dispatch available for plant shutdowns and critical site requirements.

Also serving: Numaligarh Refinery Limited (NRL) — 3 Mtpa expanding to 9 Mtpa, OIL (Oil India Limited) Duliajan fields, IGGL Indradhanush Gas Grid (northeast India), Paradip–Numaligarh pipeline (HPCL-Assam Accord), BPCL–BRPL Guwahati Refinery supply chain

FAQ — Glass, Ceramics & Refractory Industries Valves in Numaligarh

Do you supply glass, ceramics & refractory industries valves in Numaligarh?
Yes. Vajra Industrial Solutions supplies Knife Gate Valve, High-Temperature Butterfly Valve, Pinch Valve, Gate Valve (IBR Steam) for glass, ceramics & refractory industries applications in Numaligarh, Assam. Numaligarh Refinery Limited (NRL) — co-owned by Bharat Petroleum, Oil India Limited, and the Government of Assam — operates a 3 Mtpa refinery currently undergoing a major expansion to 9 Mtpa with integrated petrochemical units including a wax and bio-bitumen plant; NRL's greenfield expansion projects require API 6D ball valves, API 600 gate and globe valves, and check valves across all ISBL and OSBL units; Vajra Industrial Solutions supplies IBR-certified steam valves, API 6D Class 300–600 valves, and full API 598 test-certified valves for NRL expansion procurement, with delivery to Assam via road and rail from Vadodara within 7–10 business days. We offer delivery to Numaligarh in 3–7 business days with full documentation and third-party inspection.
What certifications are required for glass, ceramics & refractory industries valves in Numaligarh?
For glass, ceramics & refractory industries in Numaligarh, the applicable standards are: ASME B16.34, IBR 1950 (Steam), API 609 (Butterfly), IS 6157 (Knife Gate), API 598, EN 593 (Butterfly). All valves are supplied with full documentation including material test reports (EN 10204 3.1/3.2), pressure test certificates, and dimensional inspection reports. Third-party inspection (TPI) by EIL, Bureau Veritas, Lloyd's Register, or the client's nominated inspector can be arranged.
What is the delivery time for glass, ceramics & refractory industries valves to Numaligarh?
Standard stock sizes: delivery to Numaligarh in 3–7 business days. Custom sizes and special materials (Duplex, Hastelloy, P91): 4–8 weeks manufacturing lead time. Express dispatch available for urgent site requirements. Contact us at +91-9979774557 or sales@vajravyuh.com with your specification and required delivery date.
Why are knife gate valves preferred for ceramic slip over ball valves?
Ball valves trap ceramic slurry in the body cavity behind the ball when the valve closes. As the slurry dries or settles, it packs hard into the cavity and prevents the ball from re-opening. The next attempted operation shears off the slurry cake — or the actuator stalls. Knife gate valves eliminate this problem by using a thin gate that cuts through the slurry with no body cavity behind it. Pinch valves are even better for the highest-solids slurry — the elastomer sleeve squeezes shut with no metal contact with the abrasive medium at all.
What is the maximum temperature for EPDM seats in combustion air butterfly valves?
Standard EPDM seats are rated for continuous service up to approximately 120°C and intermittent service to 150°C. For combustion air butterfly valves operating above 150°C (typical for glass furnace combustion air preheated to 300–600°C using recuperators), EPDM seats are not suitable. Specify: (1) metallic seats — stainless steel with Stellite hard-face for metal-to-metal seating; (2) graphite expansion seats; or (3) high-performance butterfly valves with triple-offset metal seat design (triple-offset butterfly valves seal metal-to-metal with an eccentric disc that cams into the seat, requiring no elastomer).

Other Application Guides for Numaligarh

Oil & Gas PipelinesPharmaceutical & Biotech (Cleanroom / Hygienic)LNG & Cryogenic ServiceWater Treatment & DesalinationRefinery & Petrochemical ProcessPower Generation (Thermal, Gas, Hydro)Marine & Offshore ServiceMining & Mineral ProcessingHVAC & Building ServicesChemical & Petrochemical ProcessingHygienic Food & Beverage ProcessingHydrogen & Clean Energy ServiceDesalination & High-Purity WaterPulp & Paper IndustryAmmonia & Fertiliser PlantsNuclear Power PlantsOffshore & Subsea ApplicationsCoke Oven & Steel PlantsEthylene Crackers & Olefin PlantsChlor-Alkali PlantsSugar & Ethanol PlantsGeothermal Power PlantsAir Separation Units (ASU)Compressed Gas & CNG SystemsBiogas & Biomass PlantsCarbon Capture & Storage (CCS)Fire Protection SystemsShipbuilding & Marine RepairDistrict Heating & Cooling SystemsPharmaceutical & Biotechnology PlantsTextile & Dyeing Plants

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Glass, Ceramics & Refractory Industries Valves — Numaligarh

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Standards

ASME B16.34
IBR 1950 (Steam)
API 609 (Butterfly)
IS 6157 (Knife Gate)
API 598
EN 593 (Butterfly)

Product Categories

Gate Valves Butterfly Valves Pinch Valves

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