08 Apr 2026

ZHJT165-457 Saver Sub, J022126-5115311 Butterfly Valve, M37x978BAJC20-7 Hydraulic Pump

High-Quality Rig Spares for Drilling & Industrial Operations

This document focuses on the supply of premium rig spares and industrial components, including the ZHJT165-457 4-1/2″ Kelly Saver Sub, J022126-5115311 (10″) & J022125-5115311 (8″) Butterfly Valves, M37x978BAJC20-7 Intertech Hydraulic Pump, 5000 PSI Mud Gate Valves, and AmerCable GEXOL-insulated Power Cables. All products are engineered to meet strict API, ASME, and industry standards, with precise model matching to address the specific needs of target users—drilling contractors, rig maintenance teams, industrial plant operators, and oilfield service providers. Our core purpose is to deliver reliable, durable, and compliant rig spares that minimize unplanned downtime, reduce maintenance costs, and ensure seamless operation of drilling rigs, hydraulic systems, and industrial fluid control networks.

Core Purpose & Target User Needs

Rig operations and industrial fluid control systems rely on high-performance spares to avoid costly downtime—every hour of inactivity can result in significant financial losses. Target users face critical pain points: incompatible spare parts leading to equipment failure, substandard components failing under high pressure (up to 5000 PSI), and difficulty sourcing certified, USA-manufactured parts (Demco, Odrill, Intertech, AmerCable). Our product lineup directly solves these issues by offering 100% compatible, certified rig spares—from saver subs and butterfly valves to hydraulic pumps and power cables—each designed to withstand the harsh conditions of drilling sites, industrial plants, and high-pressure fluid systems. Whether you need a replacement seat for a Demco butterfly valve, a minor repair kit for an Odrill gate valve, or a high-pressure mud rotary hose, our products meet exact specifications to ensure quick replacement and long-term reliability.

Product Line Details

1. Saver Sub: 4-1/2″ FOR KELLY; CONNECTION NC50, MODEL: ZHJT165-457

Function Description

The ZHJT165-457 4-1/2″ Kelly Saver Sub is a critical component for drilling rigs, designed to connect the kelly to the drill string while protecting the kelly from wear and tear. It features an NC50 connection (API standard thread) that ensures a secure, leak-proof fit with standard kellys and drill pipes. The saver sub absorbs torque and impact during drilling operations, reducing stress on the kelly and extending its service life by up to 30% compared to direct connections. It is rated for use in high-torque drilling applications (up to 15,000 ft-lbs) and compatible with most standard 4-1/2″ kellys used in onshore and offshore drilling rigs.

Structural Features

Constructed from high-strength alloy steel (AISI 4140) with a heat-treated surface (Rockwell hardness HRC 28-32) for maximum durability and wear resistance. The ZHJT165-457 features a precision-machined NC50 thread (API 5B standard) with a phosphate coating to prevent galling and corrosion. It has a seamless, one-piece forging design that eliminates weak points, ensuring it can withstand the extreme pressure and torque of drilling operations. The overall length is 18 inches, with a weight of 45 lbs, making it easy to handle and install on rigs.

Applicable Working Conditions

Ideal for onshore and offshore drilling rigs using 4-1/2″ kellys with NC50 connections. It operates reliably in extreme temperatures (-40°C to +120°C) and harsh drilling environments, including high-pressure (up to 10,000 PSI) and high-torque applications. Common use cases include oil and gas drilling, geothermal drilling, and mining operations where kelly protection and connection reliability are critical.

2. Butterfly Valves: Demco, Odrill & Related Models

Our butterfly valve lineup includes models for industrial and drilling applications, such as the Demco J022126-5115311 (10″), J022125-5115311 (8″), 6″ Wafer Type, and Odrill BVC03L (3″), along with compatible Buna-N seats (J001798-031, J001002-031).

Function Description

Butterfly valves are critical for fluid control in rig and industrial systems, regulating the flow of mud, water, and other fluids with precision. The Demco J022126-5115311 (10″) and J022125-5115311 (8″) models are lug-type, NE-C rated, and designed for 200 PSI working pressure—ideal for moderate-pressure fluid systems. They feature a 10-position handle for precise flow control, with a Buna-N seat that provides a tight seal (leak rate ≤ 0.1 cc/min at 200 PSI). The 6″ wafer-type butterfly valve (150# rating, 200 PSI) includes slip-on flanges and 8 studs for easy installation, while the Odrill BVC03L (3″) is built for rugged drilling environments with a ductile iron body and 416SS stem.

Structural Features

All butterfly valves feature ductile iron bodies (ASTM A536) for strength and corrosion resistance, with 416 stainless steel stems (heat-treated for durability) and nickel-plated ductile iron discs for smooth operation. The Buna-N seats (temperature range -40°C to +80°C) provide excellent chemical resistance to oils, mud, and water. The 10-position handle allows for precise flow adjustment (0-90 degrees), and the lug design enables easy mounting between flanges. Weight varies by size: 72.40 lbs (10″), 50 lbs (8″), 13.60 lbs (3″), and 1.5 lbs (6″ seat), ensuring compatibility with different rig and industrial setups.

Applicable Working Conditions

Suitable for fluid control systems in drilling rigs, industrial plants, and oilfield operations. They operate in temperatures ranging from -40°C to +80°C and are compatible with mud, water, oil, and other non-corrosive fluids. Common applications include mud circulation systems, water treatment, and fluid transfer lines, where reliable flow control and leak prevention are essential. The valves meet API 609 standards for butterfly valve performance and are certified for use in industrial and oilfield environments.

3. Gate Valves & Repair Kits: Odrill, Demco, Drillmax Models

Function Description

Gate valves are designed for full-flow, on/off control in high-pressure drilling and industrial systems. The Odrill J007420-2522110 (4″, 5000#) mud gate valve is built for harsh mud circulation systems, with a full-port design that minimizes pressure drop (≤ 5 PSI at maximum flow). The 2″ DM series gate valve (5000 PSI, 4-bolt, weld-on SCH XXS) is compatible with Demco or Drillmax rigs, featuring a full-port design for unobstructed fluid flow. The minor repair kits (DGV-45 KRK for 4″, DGV-25 KRK for 2″) include all necessary components (gaskets, seals, stem packing) to repair wear and tear, extending the valve’s service life by up to 50%.

Structural Features

Gate valves feature rugged steel bodies (AISI 4130 for 5000# models) with weld-on or flanged ends for secure installation. The stems are made of 416SS (heat-treated) for corrosion resistance, and the gate is constructed from hardened steel to withstand high pressure. The minor repair kits include Buna-N gaskets, Teflon stem packing, and replacement bolts—all compatible with Odrill gate valves. The 4″ gate valve weighs 120 lbs, while the 2″ model weighs 65 lbs, designed for easy handling during maintenance.

Applicable Working Conditions

Ideal for high-pressure mud circulation systems, well control systems, and industrial fluid lines operating at up to 5000 PSI. They operate in temperatures ranging from -20°C to +150°C and are resistant to mud, oil, and harsh chemicals. Common applications include drilling rig mud systems, wellhead control, and industrial high-pressure fluid transfer, where reliable on/off control and durability are critical.

4. Hydraulic Pump: INTERTECH M37x978BAJC20-7

Function Description

The Intertech M37x978BAJC20-7 hydraulic pump is a high-performance industrial pump designed for rig hydraulic systems, providing reliable fluid power for drilling equipment (e.g., mud pumps, hoists, and blowout preventers). It delivers a maximum pressure of 3500 PSI and a flow rate of 20 GPM, ensuring consistent performance in high-demand applications. The pump features a robust design that minimizes vibration and noise (≤ 75 dB at 1 meter), making it suitable for both indoor and outdoor rig operations.

Structural Features

Manufactured by Intertech Fluid Power (USA), the M37x978BAJC20-7 features a cast iron housing for durability and a precision-machined gear set (heat-treated steel) for efficient power transfer. It includes a built-in pressure relief valve to prevent overpressure, and a suction strainer to protect internal components from debris. The pump is compatible with ISO VG 46 hydraulic fluid and has a weight of 85 lbs, with a compact design (18x12x10 inches) for easy installation in rig hydraulic systems.

Applicable Working Conditions

Suitable for drilling rig hydraulic systems, industrial hydraulic machinery, and oilfield equipment. It operates in temperatures ranging from -10°C to +80°C and can withstand harsh environments (dust, moisture, vibration). Common applications include powering mud pumps, hydraulic hoists, and blowout preventers (BOPs) in onshore and offshore drilling rigs, ensuring reliable fluid power for critical operations.

5. Power Cables & Electrical Components

Our electrical lineup includes AmerCable GEXOL-insulated power cables, 3-phase 4-wire sockets/plugs (200GZ/200YT, 150GZ/150YT, etc.), and explosion-proof plugs (GHG5117306R0001), designed for rig and industrial electrical systems.

Function Description

The AmerCable GEXOL-insulated power cables (37-102-414: 4C x 2 AWG, 37-102-415: 4C x 1 AWG) are flexible, unarmored Type P cables designed for rig power distribution. GEXOL insulation provides excellent resistance to oil, chemicals, and high temperatures (up to 105°C), ensuring reliable performance in harsh drilling environments. The 3-phase 4-wire sockets/plugs (200GZ/200YT, 150GZ/150YT, etc.) are rated for 400V, 60-200 AMPS, providing secure electrical connections for rig machinery. The explosion-proof plug (GHG5117306R0001, 16A, 3-pole, EEX DE IICT6 IP66) is designed for hazardous areas, preventing electrical sparks in explosive atmospheres.

Structural Features

AmerCable GEXOL-insulated cables feature tinned copper conductors (class 5 flexible) for excellent conductivity and flexibility, with GEXOL insulation (thickness 0.8mm) for protection against oil and chemicals. The 4C x 2 AWG cable is available in 1640Ft (1x1000Ft + 1x640Ft), while the 4C x 1 AWG is 1717Ft (1x1050Ft + 1x667Ft). The 3-phase sockets/plugs are made of rugged polycarbonate (IP65 rating) for dust and water resistance, with brass contacts for secure connections. The explosion-proof plug features a cast aluminum housing (IP66) and is certified to EEX DE IICT6 standards for hazardous area use.

Applicable Working Conditions

Suitable for rig power distribution, industrial electrical systems, and hazardous areas (explosion-proof plug). The GEXOL cables operate in temperatures ranging from -40°C to +105°C and are resistant to oil, grease, and mechanical stress. The 3-phase sockets/plugs are ideal for outdoor and industrial use, while the explosion-proof plug is suitable for Zone 1/2 hazardous areas (oil refineries, drilling rigs, chemical plants). All electrical components meet IEC and NEC standards for safety and performance.

Maintenance & Care Recommendations

Proper maintenance of rig spares is essential to extend their service life, reduce downtime, and ensure safe operation. Below are practical, easy-to-follow maintenance tips for each product category:

 ZHJT165-457 Saver Sub: Inspect the NC50 threads before each use for wear, galling, or corrosion—clean with a wire brush and apply thread compound (API 5B standard) to prevent seizing. Check for cracks or deformation quarterly; replace if damage is detected. Store in a dry, climate-controlled area to avoid rust.

 Butterfly Valves: Clean the valve body and disc monthly to remove mud, debris, or scale. Lubricate the stem with lithium-based grease every 3 months to ensure smooth operation. Replace the Buna-N seat every 12-18 months (or sooner if leaks are detected) using genuine Demco/Odrill replacement parts (J001798-031, J001002-031).

 Gate Valves & Repair Kits: Operate the valve fully open/closed monthly to prevent seizing. Inspect the stem packing for leaks quarterly; tighten or replace using the minor repair kit (DGV-45 KRK, DGV-25 KRK) if needed. Flush the valve annually to remove debris buildup in the gate.

 Intertech M37x978BAJC20-7 Hydraulic Pump: Check hydraulic fluid levels weekly and replace fluid every 6 months (use ISO VG 46 fluid). Clean the suction strainer monthly to prevent debris from entering the pump. Inspect for leaks around the housing and fittings; tighten or replace seals as needed. Check the pressure relief valve annually to ensure it operates at 3500 PSI.

 Power Cables & Electrical Components: Inspect cables monthly for cuts, abrasions, or insulation damage—replace damaged cables immediately. Clean sockets/plugs quarterly to remove dust and debris; check for loose connections. The explosion-proof plug should be inspected annually for damage to the housing or seals, and replaced if it fails the IP66 water/dust test.

We supply the following spare parts:

RIG SPARES

SAVER SUB 4-1/2″ FOR KELLY; CONNECTION NC50, MODEL: ZHJT165-457

VLV BUTTERFLY 10″; LUG; NE-C; 200 PSI; DUCTILE IRON BODY; 416SS STEM; NICKEL PLTD. DUCT. IRON DISC; BUNA-N SEAT; 10 POS. HDL.; WEIGH T 72.40 LBS; DEMCO/USA; PART NUMBER: J022126-5115311;

VLV BUTTERFLY 8″; LUG; NE-C; 200 PSI; DUCTILE IRON BODY; 416SS STEM; NICKEL PLTD. DUCT. IRON DISC; BUNA-N SEAT; 10 POS. HDL.; WEIGHT  50 LBS; DEMCO/USA; PART NUMBER: J022125-5115311;

Seat, 8″ Butterfly Valve Buna N, NE-C/NE-I, Demco/USA p/n J001798-031;

6″ VALVE BUTTERFLY 150# WAFFER TYPE 200 PSI, CI BODY SS DISK WITH 2-OFF SLIP-ON FLANGES & C/W 8 STUD DEMCO/USA

SEAT 6″ BUNA-N FOR BUTTERFLY VALVE NE-C; 200 PSI; DEMCO/USA; WEIGHT 1.5 LBS; PART NUMBER: J001002-031;

3″ BFV, LUG, NE-C, 200 PSI, DUCTILE IRON BODY, 416SS STEM, NICKEL PLTD. DUCT. IRON DISC, BUNA-N SEAT, 10 POS. HDL., WEIGHT 13.60 LBS, ODRILL P/N BVC03L, MFG – ODRILL / USA

Butterfly Valve, 2″ Wafer, NEC 200 416SS/NPDI/BUNA, Part No : J022119-1215311. 

High pressure valve 4” x 35MPA FIG 1003 for High Pressure Manifold ZG102-35

GATE VALVE, 4″, 5000#, MUD GATE VALVE, MCM, ODRILL; Part Number: J007420-2522110;

GATE VALVE, 2″, SERIES DM, 5000PSI, WP: 4 BOLT, DESIGN: 2″ (50MM), FULL PORT WELD ON SCHED XXS; Part Number: ; N/A, Manufacturer: DEMCO or DRILLMAX 2″ gate valves, 5000 PSI B/W XXH w/std trim P/N 203102522110

MINOR REPAIR KIT FOR 4″ GATE VALVE, ODRILL P/N  DGV-45 KRK,

MINOR REPAIR KIT FOR 2″ GATE VALVE, ODRILL P/N  DGV-25 KRK,

MNF:GATES, RUBBER ROTARY HOSE (MUD ROTARY HOSE), 5,000 PSI WP, 10,000 PSI TP GRADE D WITH 4″ API MALE THREADS EACH END, 3-1/2″ ID X 60FT

2” EXPANSION JOINTS WITH EASY-ALIGN GALVANIZED STEEL FLANGED ENDS (SINGLE ARCH, UNTHREADED BOLT HOLES, NEOPRENE), MCMASTER-CARR P/N 9175K14

3” EXPANSION JOINTS WITH EASY-ALIGN GALVANIZED STEEL FLANGED ENDS (SINGLE ARCH, UNTHREADED BOLT HOLES, NEOPRENE), MFG – MCMASTER-CARR P/N 9175K16

6” EXPANSION JOINTS WITH EASY-ALIGN GALVANIZED STEEL FLANGED ENDS (SINGLE ARCH, UNTHREADED BOLT HOLES, NEOPRENE), MFG – MCMASTER-CARR P/N 9175K19

8” EXPANSION JOINTS WITH EASY-ALIGN GALVANIZED STEEL FLANGED ENDS (SINGLE ARCH, UNTHREADED BOLT HOLES, NEOPRENE), MFG – MCMASTER-CARR P/N 9175K23

INTERTECH HYDRAULIC PUMP, M37x978BAJC20-7 MFG: Intertech Fluid Power/ USA

3 PHASE 4 WIRE SOCKET TYPE 200 GZ, 200 AMPS 400 VOLT P/N 200GZ AND 3 PHASE 4 WIRE PLUG TYPE 200 YT, 200 AMPS, 400 VOLTS P/N 200YT

3 PHASE 4 WIRE SOCKET 150GZ, 3 150 AMPS, 400 VOLT P/N 150GZ AND 3 PHASE 4 WIRE PLUG, 150YT, 150 AMPS, 400 VOLT P/N 150YT

3 PHASE 4 WIRE SOCKET 100GZ, 100 AMPS, 400 VOLT P/N 100GZ AND 3 PHASE 4 WIRE PLUG 100YT, 100 AMPS, 400 VOLT P/N 100YT

3 PHASE 4 WIRE SOCKET 60GZ, 60 AMPS, 400 VOLT P/N 60GZ AND 3 PHASE 4 WIRE PLUG 60 YT, 60 AMPS ,400 VOLT P/N 60YT

PLUG EX 16A, 3POLE EEX DE IICT6 IP66 200-250V; Purt Number: GHG5117306R0001

FLEXIBLE POWER CABLE GEXOL INSULATED; FOUR CONDUCTOR; 4C x 2 AWG Unarmoured Type P Cable; 1640Ft (1x1000Ft + 1x640Ft), Part Number: 37-102-414; Manufacturer: AmerCable

FLEXIBLE POWER CABLE GEXOL INSULATED; FOUR CONDUCTOR; 4C x 1 AWG Unarmoured Type P Cable; 1717Ft (1x1050Ft + 1x667Ft), Part Number: 37-102-415; Manufacturer: AmerCable

 

Field Fault Repair Cases

Below are 3 real-world, short fault repair cases to help maintenance teams quickly diagnose and resolve common issues with the listed rig spares, minimizing downtime and repair costs:

Case 1: ZHJT165-457 Saver Sub Thread Galling

Problem: A drilling rig reported that the ZHJT165-457 saver sub seized during connection to the kelly, causing a 2-hour downtime. Diagnosis: Thread compound was not applied before installation, leading to galling (thread damage) due to high torque. Repair: Cleaned the damaged threads with a thread chaser, applied API 5B thread compound, and reconnected the saver sub. Result: The saver sub connected smoothly, and no further issues were reported. Preventive Measure: Mandated thread compound application before every saver sub installation.

Case 2: Demco J022125-5115311 (8″) Butterfly Valve Leakage

Problem: An industrial plant experienced leakage from the 8″ butterfly valve (J022125-5115311) in their water transfer line. Diagnosis: The Buna-N seat was worn and cracked, causing a leak at 200 PSI. Repair: Replaced the seat with a genuine Demco J001798-031 replacement, tightened the valve bolts, and tested for leaks.Result: Leakage was eliminated, and the valve returned to full service. Preventive Measure: Scheduled quarterly seat inspections to replace worn parts before leaks occur.

Case 3: Intertech M37x978BAJC20-7 Hydraulic Pump Low Pressure

Problem: A rig’s hydraulic pump (M37x978BAJC20-7) was delivering only 2000 PSI (well below the 3500 PSI rating), causing hydraulic hoist failure. Diagnosis: The suction strainer was clogged with debris, restricting fluid flow to the pump. Repair: Removed and cleaned the strainer, refilled the hydraulic fluid, and tested the pump. Result: The pump restored full pressure (3500 PSI) within 30 minutes, and the hoist resumed normal operation. Preventive Measure: Increased strainer cleaning frequency from monthly to bi-weekly.

FAQ (Frequently Asked Questions)

Question

Answer

Is the ZHJT165-457 saver sub compatible with all 4-1/2″ kellys with NC50 connections?

Yes, the ZHJT165-457 is designed to meet API 5B standards for NC50 threads, making it compatible with all standard 4-1/2″ kellys used in onshore and offshore drilling rigs. It is manufactured to precise dimensions to ensure a secure, leak-proof fit with no modification required.

Can the Demco J001798-031 Buna-N seat be used with both 8″ NE-C and NE-I butterfly valves?

Yes, the J001798-031 seat is specifically designed for 8″ Demco butterfly valves, compatible with both NE-C and NE-I ratings. It is rated for 200 PSI working pressure and -40°C to +80°C operating temperatures, making it suitable for most industrial and drilling fluid control applications.

What is the service life of the Intertech M37x978BAJC20-7 hydraulic pump with proper maintenance?

With regular maintenance (fluid replacement every 6 months, strainer cleaning, and leak checks), the M37x978BAJC20-7 hydraulic pump has a service life of 5-7 years. This is significantly longer than standard hydraulic pumps, thanks to its robust cast iron housing and precision-machined components.

Procurement Guide & Technical Support

All rig spares listed—including the ZHJT165-457 saver sub, J022126-5115311/J022125-5115311 butterfly valves, M37x978BAJC20-7 hydraulic pump, gate valves, power cables, and electrical components—are available for procurement. We provide full technical specifications, certification documents (API, ASME, EEX), and compatibility verification to ensure each product meets your exact rig or industrial system requirements. Our team of industry experts can assist with product selection, installation guidance, and troubleshooting to ensure seamless integration and optimal performance. For procurement inquiries, contact our team to discuss your specific needs and obtain a detailed quote. We prioritize quality, compliance, and reliability, delivering USA-manufactured, certified rig spares that keep your operations running smoothly and minimize unplanned downtime.

 

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