14 Mar 2026

HRSB RS11851.05.12.02.00, Siemens 3VL27121DC330AA0, PAP1 00A16C001.070

Product Introduction

We focus on producing and supplying high-reliability, fully compatible spare parts for Blowout Preventer (BOP) systems, industrial electrical control, and mechanical equipment—critical for oil and gas, manufacturing, and heavy industrial operations. Our product range covers BOP components, Siemens electrical parts, cable glands, LED indicators, mechanical fasteners, BPM modules, and more, with key models including HRSB FRONT PACKER RS11851.05.12.02.00 (2 7/8″ – 5” VBR, for 11″ 5K RAM FORGED BOP), Siemens INTERRUPTER 3VL27121DC330AA0 (00A15C001.084), PAP1 – STANDARD CABLE GLAND 1/2″ 00A16C001.070, THREE-POSITION, FOUR WAY CHANGE VALVE 3.4HXF-00 (for BOP control device), and NT75401030806 central tube.

All products comply with authoritative industry standards: API 16A for BOP components, IEC 60947 for Siemens electrical parts, ISO 9001 for quality management, and NEMA 4X for environmental protection. Each part undergoes a 28-point strict quality inspection, with exclusive performance data to ensure reliability: HRSB RS11851.05.12.02.00 front packer withstands 5000 psi (5K) pressure with a leakage rate ≤0.001 ml/min; Siemens 3VL27121DC330AA0 interruptor has a 50kA breaking capacity and operates from -25°C to +70°C; PAP1 cable gland offers IP68 dust/water protection and -40°C to +100°C temperature resistance. These parts are engineered to avoid costly downtime and ensure safe, long-term operation in harsh industrial environments.

We prioritize value delivery to solve core pain points for professionals: BOP leaks, electrical failures, mechanical jams, and component wear. Using premium materials—alloy steel for BOP parts, corrosion-resistant brass for cable glands, industrial-grade electronics for Siemens components—we cut maintenance costs by 70% and extend equipment lifespan by 50%, with 100% compatibility for 11″ 5K RAM FORGED BOP, FKQ1200-8 BOP CU, and Siemens electrical systems.

Core Purpose & Target User Needs

Our products ensure the safety, reliability, and efficiency of BOP systems, industrial electrical control, and mechanical equipment. Key functions include: BOP components (HRSB RS11851.05.12.02.00, 3.4HXF-00 valve, GLQ28-00-04 cushion) maintain well pressure and prevent leaks; Siemens electrical parts (3RH1921-1EA11, 3RV1021/1AA10, 3VL27121DC330AA0) enable stable electrical control; PAP1 cable glands protect cables; LED lights provide clear status indicators; mechanical fasteners (JC100203, T75020302) ensure structural integrity; BPM modules (BSA017-1218, BXA031-1218) support automation—all to avoid catastrophic failures and maximize productivity.

We cater to four key user groups with specialized needs:

 BOP Maintenance Technicians: Maintain 11″ 5K RAM FORGED BOP and FKQ1200-8 BOP CU systems, needing HRSB RS11851.05.12.02.00 front packer, 3.4HXF-00 valve, GLQ28-00-04 cushion, NT75401030806 central tube, and T75401030810 packing to ensure pressure control and leak prevention.

 Electrical Technicians: Service industrial electrical systems, requiring Siemens 3RH1921-1EA11 aux contact, 3RV1021/1AA10 magnetic terminal, 3VL27121DC330AA0 interruptor, BA9 LED lights (00A15C036.001-005), PAP1 cable gland, and 145c 10A33C303.022 fusible plug for safe, reliable operation.

 Industrial Mechanics: Repair mechanical equipment, needing T75020503 positioning pin, T75020311A pin shaft, T75020302 round nut, T75020312 pin bushing, B08060390002 stop washer, and JC100203/04 bolts/nuts to prevent jams and ensure structural stability.

 Oil & Gas Operators: Manage wellsite operations, requiring BPM modules (BSA017-1218, BXA031-1218), JC100201 air tube, JC100202 steel ring, and all core parts to avoid unplanned downtime and safety risks.

Key pain points solved: BOP leaks from worn HRSB packers/3.4HXF-00 valves; electrical failures from faulty Siemens interruptors/aux contacts; mechanical jams from damaged pin bushings/positioning pins; cable damage from inadequate PAP1 glands; LED failures affecting status monitoring—all leading to costly downtime and safety hazards we eliminate with our high-quality parts.

Function Description

1. BOP Components

Critical for oil and gas well pressure control and blowout prevention, these parts ensure safe well operations:

HRSB RS11851.05.12.02.00 Front Packer: Fits 11″ 5K RAM FORGED BOP, compatible with 2 7/8″ – 5” VBR, seals drill pipe to control well pressure. 3.4HXF-00 Change Valve: Three-position, four-way valve for BOP control devices, regulates hydraulic fluid to actuate BOP rams. GLQ28-00-04 Cushion: Remote panel cushion for FKQ1200-8 BOP CU, absorbs vibration to protect control panels. NT75401030806 Central Tube: Core BOP structural part, supports fluid flow and pressure control. T75401030810 Packing: Seals BOP moving parts to prevent fluid leakage.

2. Electrical Components

Enable reliable electrical control, status monitoring, and safety protection in industrial systems:

Siemens 3RH1921-1EA11 Aux Contact (00A15C003.022): Adds switching functions for contactors/circuit breakers. Siemens 3RV1021/1AA10 Magnetic Terminal (00A15C001.045): Secures electrical wires in control panels. Siemens 3VL27121DC330AA0 Interruptor (00A15C001.084): Protects circuits from overcurrent/short circuits. BA9 LED Lights (00A15C036.001-005): Red/green/white status indicators for control panels. 145c 10A33C303.022 Fusible Plug: Melts to disconnect circuits during overheating/overcurrent. PAP1 1/2″ Cable Gland (00A16C001.070): Secures and protects cables from dust/water.

3. BPM Components

Support industrial automation and control, ensuring precise, reliable process operation:

BPM BSA017-1218, 14917-1-11, BXA031-1218, BSA055-1218, BXA207-1218: Automation modules (sensors/controllers) for industrial processes; BXA031-1218 and BSA055-1218 offer dual power supply for redundancy.

4. Mechanical Fasteners & Structural Parts

Ensure mechanical equipment integrity and smooth operation:

T75020503 Positioning Pin: Aligns backup tongs for pipe handling. T75020311A Pin Shaft: Enables moving part rotation/connection. T75020302 Round Nut: Secures mechanical components against vibration.T75020312 Pin Bushing: Reduces friction between moving parts.B08060390002 Stop Washer: Locks round nuts in place. JC100201 Air Tube: Transmits compressed air for pneumatic systems. JC100202 Steel Ring: Reinforces mechanical assemblies. JC100203 Bolt & JC100204 Nut: Secures components with high tensile strength.

Structural Features

1. BOP Components

HRSB RS11851.05.12.02.00: AISI 4140 alloy steel, 5000 psi pressure rating, ≤0.001 ml/min leakage, -40°C to +120°C operating range, corrosion-resistant to well fluids, 30,000+ service hours. 3.4HXF-00 Valve: 316L stainless steel, 0-3000 psi operating pressure, ≤50ms response time, vibration-resistant. GLQ28-00-04 Cushion: High-density rubber, 10mm thickness, 60±5 shore hardness, absorbs up to 10g vibration.

2. Electrical Components

Siemens 3VL27121DC330AA0: 50kA breaking capacity, 125A rated current, 690VAC, -25°C to +70°C, thermal-magnetic trip. Siemens 3RH1921-1EA11: 10A/250VAC contact rating, 10 million mechanical operations. PAP1 Cable Gland: Brass, IP68 protection, 4-12mm cable compatibility, -40°C to +100°C. BA9 LEDs: 24VDC, 100 lumens, 50,000+ service hours, IP65 shock resistance.

3. BPM Components

12-18VDC, ≤500mA current, -30°C to +70°C, 50x30x20mm compact size, ≤10ms response time; dual power supply for BXA031-1218/BSA055-1218.

4. Mechanical Parts

High-strength carbon steel (45#), HRC 40-45 hardness, ±0.01mm precision, zinc-plated corrosion resistance; 8.8-grade JC100203 bolts withstand 80kN tensile load.

Applicable Working Conditions

 Oil & Gas Wellsites: BOP parts operate in 5000 psi pressure, -40°C to +120°C, exposed to well fluids and harsh weather.

 Control Panels: Electrical components work in 0°C to +50°C, low-moderate vibration environments.

 Mechanical Facilities: Fasteners/structural parts operate in -20°C to +80°C, high-vibration, oil-exposed environments.

 Automation Systems: BPM modules work in -30°C to +70°C, dusty/humid conditions.

 Pneumatic Systems: JC100201 air tube operates in 0-10 bar, moisture/oil-exposed environments.

Maintenance and Care Suggestions

1. Weekly Inspection

Check HRSB packer for leaks; inspect Siemens parts for loose connections; test LEDs; verify PAP1 gland security; check fasteners for vibration-induced loosening.

2. Monthly Maintenance

Lubricate pin bushings/positioning pins; calibrate 3.4HXF-00 valve; clean Siemens terminals; inspect BPM modules; replace tripped fusible plug.

3. Quarterly Maintenance

Replace packing/cushion if worn; inspect central tube for corrosion; test Siemens interruptor; clean PAP1 gland; replace corroded fasteners.

4. Long-Term Storage

Store BOP parts with anti-rust oil; keep electrical parts in anti-static packaging (10-30°C, ≤60% humidity); store mechanical/BPM parts in cool, dry conditions; test before reinstallation.

We supply the following spare parts:

PAP1 – STANDARD CABLE GLAND 1/2″ 00A16C001.070

AUX.CONTACT SIEM 3RH1921-1EA11 00A15C003.022

MAGN.TERM.SIEM 3RV1021/1AA10 00A15C001.045

INT.SIEM 3VL27121DC330AA0 00A15C001.084

LED LIGH RED-CONNECTION BA9 00A15C036.001

LED LIGH GREEN-CONNECTION BA9 00A15C036.002

LED LIGH GREEN-CONNECTION BA9 00A15C036.003

LED LIGH WHITE-CONNECTION BA9 00A15C036.005

Fusible plug145c 10A33C303.022

BPM BSA017-1218

BPM 14917-1-11

BPM BxA031-1218

BPM BXA031-1218

BPM BSA055-1218

BPM BSA055-1218

BPM BXA207-1218

NT75401030806 central tube

T75401030810 Packing

T75020503 Positioning pin of backup tongs

T75020311A pin shaft 2

T75020302 round nut

T75020312 pin bushing

B08060390002 Round nut stop washer

HRSB FRONT PACKER RS11851.05.12.02.00 2 7/8″ – 5” VBR, FOR 11″ 5K RAM FORGED BOP

THREE-POSITION, FOUR WAY CHANGE VALVE 3.4HXF-00 FOR BOP CONTROL DEVICE

CUSHION, REMOTE PANEL GLQ28-00-04 FOR BOP CU MODEL: FKQ1200-8

Air tube JC100201

Steel ring JC100202

Bolt JC100203

Nut JC100204

Steel wi

 

On-Site Fault Maintenance Cases

Case 1: BOP Leak (HRSB RS11851.05.12.02.00 Front Packer)

Fault: 11″ 5K BOP leaked fluid, losing pressure. Solution: Cleaned packer seal surface (damaged by debris), replaced T75401030810 packing, pressure-tested—leak eliminated. Cause: Well fluid debris damaged the seal. Tip: Clean well fluid filters weekly.

Case 2: Electrical Failure (Siemens 3VL27121DC330AA0 Interruptor)

Fault: Control panel failed; interruptor tripped and wouldn’t reset. Solution: Repaired short-circuited wiring, reset interruptor—panel restored. Cause: Damaged wire insulation caused short circuit. Tip: Inspect wiring monthly for wear.

Case 3: Mechanical Jam (T75020312 Pin Bushing)

Fault: Backup tongs jammed. Solution: Replaced worn, unlubricated pin bushing, lubricated positioning pin—tongs operated smoothly. Cause: Lack of lubrication caused friction/wear. Tip: Lubricate pin parts monthly.

FAQ (Frequently Asked Questions)

Question

Answer

Which BOP models work with HRSB RS11851.05.12.02.00?

It’s designed for 11″ 5K RAM FORGED BOP systems and compatible with 2 7/8″ – 5” VBR. It handles 5000 psi pressure, leaks ≤0.001 ml/min, and resists well fluids—ideal for oil/gas well control.

What specs does Siemens 3VL27121DC330AA0 have?

It’s a 125A, 690VAC interruptor with 50kA breaking capacity, -25°C to +70°C operating range, and thermal-magnetic trip. It’s compact, fits Siemens control panels, and protects circuits from overcurrent/short circuits.

Is PAP1 1/2″ cable gland suitable for wet/dusty areas?

Yes, it has IP68 protection (dustproof, waterproof—submersible to 1.5m for 30 mins). Made of corrosion-resistant brass, it works -40°C to +100°C and fits 4-12mm cables, perfect for harsh industrial environments.

Purchase Guide

We produce and supply all listed components, including HRSB RS11851.05.12.02.00, Siemens 3VL27121DC330AA0, PAP1 00A16C001.070, 3.4HXF-00, NT75401030806, and all BPM, mechanical, and electrical parts. All products meet API 16A, IEC 60947, and ISO 9001 standards, with full quality reports, exclusive performance data, and 100% compatibility with OEM equipment. For detailed parameters, quotations, and technical support (selection, installation, maintenance), contact us to purchase parts that fit your needs. We deliver reliable products to reduce maintenance costs, avoid downtime, ensure safety, and extend equipment life.

 

contact us 

Emeil: [email protected]   whatsapp: +86 15275658619

Should you have any purchase intentions, please contact us – we will offer you our most favorable price.


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