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Kadapa · Geothermal Power Plants

Valves for Geothermal Power Plants — Kadapa

Kadapa (Cuddapah) district overlies one of India's richest limestone formations — Ultratech Cement, Orient Cement, and Deccan Cement draw from this belt for clinker production, and their kiln feed slurry, pneumatic fly-ash conveying, and raw-mill circuits require heavy-duty ASME Class 150 knife gate valves, abrasion-resistant pinch valves, and rubber-lined butterfly valves; UCIL's Tummalapalle uranium mine (80 km south) — Asia's largest uranium deposit at 150,000 tonnes U3O8 — demands NACE MR0175-certified ball valves for uranium yellowcake slurry, acid-leach pulp, and solvent-extraction (SX) circuits; Mangampeta baryte mine (world's second-largest deposit, 29 million tonnes) and granite quarrying across Vempalli and Rajampet taluks further amplify demand for slurry and abrasive-service valve procurement.

Duplex 2205 wellhead isolation ball valves, NACE MR0175 gate valves for H₂S-containing geothermal brine, and IBR-certified steam valves for geothermal power generation.

NACE MR0175 / ISO 15156ASME B16.34IBR 1950 (Steam India)API 600API 6D
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API 6D Certified
ASME B16.34
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Geothermal Power Plants Valves — Available in Kadapa

Ball Valve (Duplex 2205)

Class 600 / 900

Wellhead isolation and Christmas tree — sour brine (H₂S + CO₂ + Cl⁻) at 200–300°C; fire-safe, anti-static

Materials: A890 Grade 1B Duplex 2205 body and ball; Duplex stem; PTFE seats with metal seat backup  ·  Standards: API 6D, NACE MR0175, API 607 (fire-safe), ISO 14313
View Ball Valve (Duplex 2205) options for Kadapa →

Gate Valve (NACE MR0175)

Class 300 / 600

Brine pipeline isolation and separator inlet — sour H₂S service; Class 300–600

Materials: A216 WCB with SS316 trim (NACE HRC ≤ 22); A890 Duplex for higher chloride fields  ·  Standards: API 600, NACE MR0175, ASME B16.34
View Gate Valve (NACE MR0175) options for Kadapa →

Butterfly Valve (SS316L)

Class 150 / 300

Geothermal brine reinjection headers (large bore, moderate pressure), cooling water, and condensate service

Materials: SS316L disc and shaft; EPDM seat; WCB body with SS316L overlay in contact areas  ·  Standards: API 609, ASME B16.34
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Gate Valve (IBR Steam)

Class 150 / 300

Geothermal steam turbine inlet isolation and extraction steam — IBR mandatory in Indian geothermal projects

Materials: A216 WCB (saturated steam to 180°C); SS316 trim for H₂S-containing steam  ·  Standards: IBR 1950, ASME B16.34, API 600
View Gate Valve (IBR Steam) options for Kadapa →

Geothermal Power Plants Industry in Kadapa

Kadapa (Cuddapah) district overlies one of India's richest limestone formations — Ultratech Cement, Orient Cement, and Deccan Cement draw from this belt for clinker production, and their kiln feed slurry, pneumatic fly-ash conveying, and raw-mill circuits require heavy-duty ASME Class 150 knife gate valves, abrasion-resistant pinch valves, and rubber-lined butterfly valves; UCIL's Tummalapalle uranium mine (80 km south) — Asia's largest uranium deposit at 150,000 tonnes U3O8 — demands NACE MR0175-certified ball valves for uranium yellowcake slurry, acid-leach pulp, and solvent-extraction (SX) circuits; Mangampeta baryte mine (world's second-largest deposit, 29 million tonnes) and granite quarrying across Vempalli and Rajampet taluks further amplify demand for slurry and abrasive-service valve procurement.

Cement Manufacturing (Ultratech, Orient, Deccan)Limestone & Baryte MiningUranium Processing (UCIL Tummalapalle)Agro-processing & Cotton GinningGranite & Marble Quarrying

Critical Valve Requirements

H₂S service — NACE MR0175 / ISO 15156 mandatory for all wetted metallic components; HRC ≤ 22 Rockwell hardness limit on body, trim, and fasteners
Silica scaling — full-bore valves only; no throttle positions; pipeline injection of scale inhibitor upstream of brine valves
Two-phase flow (steam + liquid brine) — metal-to-metal seat or reinforced PTFE; no soft-seat-only designs in wellhead service
IBR certification for steam turbine supply headers in India — Form III-C material and Form III-E hydraulic test certificates mandatory
Chloride stress corrosion — Duplex 2205 or SS316L (not SS304); super duplex 2507 for high-chloride (>5,000 ppm Cl⁻) fields
Geothermal flash steam often contains non-condensable gases (NCG: H₂S, CO₂, NH₃) — valve materials must resist corrosion in this mixture

Why Kadapa's Cement Manufacturing (Ultratech, Orient, Deccan) Sector Needs Geothermal Power Plants Valves

Kadapa (Cuddapah) district overlies one of India's richest limestone formations — Ultratech Cement, Orient Cement, and Deccan Cement draw from this belt for clinker production, and their kiln feed slurry, pneumatic fly-ash conveying, and raw-mill circuits require heavy-duty ASME Class 150 knife gate valves, abrasion-resistant pinch valves, and rubber-lined butterfly valves; UCIL's Tummalapalle uranium mine (80 km south) — Asia's largest uranium deposit at 150,000 tonnes U3O8 — demands NACE MR0175-certified ball valves for uranium yellowcake slurry, acid-leach pulp, and solvent-extraction (SX) circuits; Mangampeta baryte mine (world's second-largest deposit, 29 million tonnes) and granite quarrying across Vempalli and Rajampet taluks further amplify demand for slurry and abrasive-service valve procurement. Key facilities in the Kadapa area — including Yerraguntla-Mylavaram Limestone Belt (Cuddapah Basin), UCIL Tummalapalle Uranium Mine (80 km), Mangampeta Baryte Mines (World's 2nd Largest Deposit) — rely on Ball Valve (Duplex 2205) for their cement manufacturing (ultratech, orient, deccan) operations. Vajra Industrial Solutions supplies Ball Valve (Duplex 2205), Gate Valve (NACE MR0175), Butterfly Valve (SS316L), Gate Valve (IBR Steam) for geothermal power plants projects across Andhra Pradesh, with full NACE MR0175 / ISO 15156 and ASME B16.34 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 Kadapa

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

Also serving: Yerraguntla-Mylavaram Limestone Belt (Cuddapah Basin), UCIL Tummalapalle Uranium Mine (80 km), Mangampeta Baryte Mines (World's 2nd Largest Deposit), Kadapa-Kurnool Granite Quarrying Corridor

FAQ — Geothermal Power Plants Valves in Kadapa

Do you supply geothermal power plants valves in Kadapa?
Yes. Vajra Industrial Solutions supplies Ball Valve (Duplex 2205), Gate Valve (NACE MR0175), Butterfly Valve (SS316L), Gate Valve (IBR Steam) for geothermal power plants applications in Kadapa, Andhra Pradesh. Kadapa (Cuddapah) district overlies one of India's richest limestone formations — Ultratech Cement, Orient Cement, and Deccan Cement draw from this belt for clinker production, and their kiln feed slurry, pneumatic fly-ash conveying, and raw-mill circuits require heavy-duty ASME Class 150 knife gate valves, abrasion-resistant pinch valves, and rubber-lined butterfly valves; UCIL's Tummalapalle uranium mine (80 km south) — Asia's largest uranium deposit at 150,000 tonnes U3O8 — demands NACE MR0175-certified ball valves for uranium yellowcake slurry, acid-leach pulp, and solvent-extraction (SX) circuits; Mangampeta baryte mine (world's second-largest deposit, 29 million tonnes) and granite quarrying across Vempalli and Rajampet taluks further amplify demand for slurry and abrasive-service valve procurement. We offer delivery to Kadapa in 3–7 business days with full documentation and third-party inspection.
What certifications are required for geothermal power plants valves in Kadapa?
For geothermal power plants in Kadapa, the applicable standards are: NACE MR0175 / ISO 15156, ASME B16.34, IBR 1950 (Steam India), API 600, API 6D, API 598, ISO 9001:2015. 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 geothermal power plants valves to Kadapa?
Standard stock sizes: delivery to Kadapa 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.
What material is recommended for geothermal brine with high H₂S?
For geothermal brine containing H₂S above 0.0003 MPa partial pressure (the NACE MR0175 threshold), specify Duplex 2205 (ASTM A890 Grade 1B) with hardness confirmed ≤ HRC 22 as per NACE MR0175 / ISO 15156. Duplex 2205 provides both corrosion resistance (PREN ≥ 35) and the required hardness limit. For very high H₂S fields (> 1,000 ppm) or combined high chloride + H₂S, upgrade to Super Duplex 2507 (PREN ≥ 40). Carbon steel with SS316 trim is acceptable only for H₂S below the NACE threshold.
How does silica scaling affect valve selection for geothermal brine?
Silica (SiO₂) dissolved in geothermal brine precipitates when the brine cools below the silica saturation temperature (typically 80–120°C for high-silica fields). This scale deposits on valve seats, stems, and body ports, causing seizure and leakage. Mitigation: (1) use full-bore valves — no narrow ports where scale can bridge; (2) use ball valves in the full-open position only — do not use ball valves for throttling in scaling brine (scale deposits in the partially open cavity); (3) inject scale inhibitor upstream. Knife gate valves for slurry-heavy brine cut through scale deposits better than wedge gate.

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Geothermal Power Plants Valves — Kadapa

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Standards

NACE MR0175 / ISO 15156
ASME B16.34
IBR 1950 (Steam India)
API 600
API 6D
API 598
ISO 9001:2015

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