Products » 3″ 8,000 PSI Manual Reset Relief Valve Parts & Repair Kits – OTECO Ultra High Pressure Components

3″ 8,000 PSI Manual Reset Relief Valve Parts & Repair Kits – OTECO Ultra High Pressure Components

Complete replacement parts catalog for OTECO 3″ 8,000 PSI Manual Reset Relief Valve. Includes all 22 components, FMC union assemblies, weldolet, and pre-packaged repair kits for ultra high pressure oilfield service.

Description

3″ 8000 PSI Manual Reset Relief Valve Parts & Repair Kits – OTECO Ultra High Pressure Components

Complete replacement parts catalog for the OTECO 3″ 8000 PSI Manual Reset Relief Valve. This ultra high-pressure safety valve delivers exceptional performance in the most demanding oilfield drilling, well servicing, and flowline operations. With a working pressure rating of 8,000 PSI (552 Bar), this valve provides superior overpressure protection for critical high-pressure systems. Our comprehensive parts inventory ensures fast turnaround on maintenance, repairs, and rebuilds to keep your operations running safely and efficiently.

Product Overview

The 3″ 8000 PSI Manual Reset Relief Valve represents the pinnacle of OTECO’s pressure relief technology. When system pressure exceeds the preset relief setting, the valve opens to vent excess pressure. The manual reset feature requires operator intervention to reclose, ensuring that overpressure events are always acknowledged and investigated. This valve is rated for 8,000 PSI (552 Bar) working pressure with 3″ nominal flow path, making it the ideal choice for ultra high-volume, high-pressure flowline and manifold applications where standard relief valves cannot meet the demands.

Exploded View Diagram

3 inch 8000 PSI manual reset relief valve exploded view diagram showing all 22 components

Complete Parts List

The following table lists all replacement components for the 3″ 8000 PSI Manual Reset Relief Valve:

Item 1 – Valve Body

Description OTECO Part No. Weight Lbs. Weight (kg)
BODY with 3″ FIGURE 1502 FEMALE OUTLET, STANDARD 143083 160 72.6
BODY with 3″ FIGURE 1502 MALE OUTLET, STANDARD 143081 160 72.6
BODY with 3.06″-10,000# RJ FLANGED OUTLET, STANDARD 143086 181 82.1

Item 2 – Inlet Sub

Description OTECO Part No. Weight Lbs. Weight (kg)
SUB with 3″ FIGURE 1002 FEMALE INLET, STANDARD 143196 59 26.8
SUB with 3″ FIGURE 1502 FEMALE INLET, STANDARD 143199 59 26.8
SUB with 3.06″-10,000# FLANGED INLET, STANDARD 143198 80 36.3

Item 3 – Piston with Bearing Assembly

Description OTECO Part No. Weight Lbs. Weight (kg)
PISTON with BEARING ASSEMBLY, STANDARD 143185 4 1.81

Item 4 – Seal Retainer

Description OTECO Part No. Weight Lbs. Weight (kg)
SEAL RETAINER, SOUR GAS/STANDARD 143035 4 1.81

Item 5 – Lower Seal

Description OTECO Part No. Weight Lbs. Weight (kg)
LOWER SEAL, (UHMWPE) POLYETHYLENE, STANDARD 302686 0.1 0.05

Item 6 – Middle Seal

Description OTECO Part No. Weight Lbs. Weight (kg)
MIDDLE SEAL, (UHMWPE) POLYETHYLENE, STANDARD 302689 0.1 0.05

Item 7 – Upper Seal

Description OTECO Part No. Weight Lbs. Weight (kg)
UPPER SEAL, (F1504) FLUOROTREL, STANDARD 302636 0.1 0.05

Item 8 – Sub Face to Body Seal

Description OTECO Part No. Weight Lbs. Weight (kg)
SUB FACE to BODY SEAL, “O”-RING #247, (NBR) NITRILE 90D, STANDARD 302428 0.1 0.05

Item 9 – Sub O.D. to Body Seal

Description OTECO Part No. Weight Lbs. Weight (kg)
SUB O.D. TO BODY SEAL, “O”-RING #240, (NBR) NITRILE 90D, STANDARD 302427 0.1 0.05

Item 10 – Retainer to Body Seal

Description OTECO Part No. Weight Lbs. Weight (kg)
RETAINER to BODY SEAL, “O”-RING #239 (NBR) NITRILE 90D, STANDARD 302634 0.1 0.05

Item 11 – Body to Top Flange Seal

Description OTECO Part No. Weight Lbs. Weight (kg)
BODY to TOP FLANGE SEAL, “O”-RING #245, (NBR) NITRILE 90D, STANDARD 302610 0.1 0.05

Item 12 – Retainer to Top Flange Seal

Description OTECO Part No. Weight Lbs. Weight (kg)
RETAINER to TOP FLANGE SEAL, “O”-RING #233, (NBR) NITRILE 90D, STANDARD 302611 0.1 0.05

Item 13 – Flanged Bolt

Description OTECO Part No. Weight Lbs. Weight (kg)
7/8″-9UNC FLANGED 12 POINT BOLT, STANDARD 302613 0.5 0.23

Item 14 – Socket Head Cap Screw

Description OTECO Part No. Weight Lbs. Weight (kg)
5/8″-11UNC SOCKET HEAD CAP SCREW, CADMIUM, STANDARD 302470 0.5 0.23

Item 15 – Socket Head Cap Screw

Description OTECO Part No. Weight Lbs. Weight (kg)
1/2″-13UNC SOCKET HEAD CAP SCREW, CADMIUM, STANDARD 302495 0.5 0.23

Item 16 – Stud

Description OTECO Part No. Weight Lbs. Weight (kg)
1″-8UNC STUD, CADMIUM, STANDARD 302472 0.5 0.23

Item 17 – Hex Nut

Description OTECO Part No. Weight Lbs. Weight (kg)
1″-8UNC HEX NUT, CADMIUM, STANDARD 302471 0.5 0.23

Item 18 – FMC Union Seal Ring

Description OTECO Part No. Weight Lbs. Weight (kg)
3″ FMC UNION SEAL RING 602/1002/1502, (NBR) NITRILE, STANDARD 301862 0.1 0.05

FMC Detachable Nut Assembly (Item 19-21)

Item Description OTECO Part No. Weight Lbs. Weight (kg)
19 3″ FIGURE 1502 UNION NUT, STANDARD/DETACHABLE, STANDARD, DNV 302625 12 5.4
19 3″ FIGURE 1502 UNION NUT, STANDARD/DETACHABLE, SOUR GAS, CHARPY 302540 12 5.4
20 3″ FIGURE 1502 UNION NUT, RETAINER RING SEGMENTS, STANDARD, DNV 302628 0.5 0.23
20 3″ FIGURE 1502 UNION NUT, RETAINER RING SEGMENTS, SOUR GAS 302541 0.5 0.23
21 3″ FIGURE 1502 UNION NUT, RETAINER SNAP RING, ALL ASSEMBLIES 301515 0.1 0.05

FMC Union Weldolet Assembly (Item 22) – Not Included with RRV Assembly

Description OTECO Part No. Weight Lbs. Weight (kg)
3″ FIGURE 1502 with 3″ BUTT WELD SCH.XXS, STANDARD, DNV 302036 25 11.3

Repair Kits

Pre-packaged repair kits are available for quick field maintenance and rebuilds:

Repair Kit Part Numbers

Kit Type Service OTECO Part No. Weight Lbs. Weight (kg)
MINOR REPAIR KIT STANDARD 143227 1 0.45
MAJOR REPAIR KIT STANDARD 143221 5 2.27

Minor Repair Kit Contents

Description Assembly #
OUTER SEAL ITEM 5
MIDDLE SEAL ITEM 6
UPPER SEAL ITEM 7
(5) “O”-RINGS ITEM 8-12
UNION SEAL ITEM 18
SPIRAL PINS NOT SHOWN

Major Repair Kit Contents

Description Assembly #
PISTON ITEM 3
OUTER SEAL ITEM 5
MIDDLE SEAL ITEM 6
UPPER SEAL ITEM 7
(5) “O”-RINGS ITEM 8-12
UNION SEAL ITEM 18
SPIRAL PINS NOT SHOWN

Major Repair Kit Additional Components

Description Assembly #
SPRING SPIRAL NOT SHOWN
CRANK NOT SHOWN
CRANK PIVOT NOT SHOWN
LINK PIN NOT SHOWN
UPPER LINK NOT SHOWN
LOWER LINK NOT SHOWN

Key Features of 3″ 8000 PSI RRV Components

  • Ultra High Pressure Rating: Designed for 8,000 PSI (552 Bar) working pressure – the highest in the OTECO manual reset relief valve range
  • Complete Parts Coverage: All 22 items from body to weldolet assembly, ensuring full rebuild capability
  • Heavy-Duty Construction: Body weights up to 181 lbs (82.1 kg) for flanged configurations, built for extreme service
  • Multiple End Connections: Figure 1002, Figure 1502, and 10,000# RJ Flanged options for body and sub
  • DNV Certified Components: Select union nut assemblies meet DNV certification for offshore applications
  • Advanced Seal Technology: UHMWPE polyethylene seals and Fluorotrel upper seal for ultra high-pressure service
  • Pre-Packaged Repair Kits: Minor and Major kits available for comprehensive field maintenance
  • Fast Turnaround: Extensive inventory ensures minimal downtime for maintenance and repairs

Applications

  • Ultra high-pressure drilling rig pressure relief systems
  • Deep well servicing and workover operations
  • High-pressure flowline and manifold protection
  • Mud pump discharge pressure safety
  • High-pressure cementing and fracturing operations
  • Offshore platform safety systems (DNV certified components)
  • Critical pressure control in HPHT wells

Ordering Information

When ordering replacement parts, please specify:

  • Item number and description
  • OTECO part number
  • End connection type (Figure 1002 / Figure 1502 / 10,000# Flanged)
  • Quantity required

For complete valve assemblies or technical support, please contact our sales team. Custom configurations and expedited shipping are available upon request.

Additional information

Pressure Rating

8,000 PSI (552 Bar)

End Connection

3" Figure 1002, 3" Figure 1502, 3.06"-10,000# RJ Flanged

Seal Material

UHMWPE Polyethylene, NBR Nitrile 90D, Fluorotrel F1504

Repair Kit Type

Minor Repair Kit, Major Repair Kit

Certification

Standard, DNV Certified, Charpy Tested

Service Type

Standard, Sour Gas (H2S)

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Contact Info

No. 432, Fute North Road, Pudong District, Shanghai, Chian

Phone: +86.21.58432768

Mobile: Whatsapp: 86-18621723891

Fax: +86.21.58432768

Web: www.camtop-oilfieldtools.com

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