How does the check valve prevent blowouts?

It prevents upward flow through the drill pipe, allowing fluid to be pumped downward to circulate the well and control pressure during a kick.

What is the working pressure range?

The working pressure ranges up to 35 MPa or 70 MPa depending on the specific model.

High-Performance OEM by-Pass Valve for Optimal Pressure Regulation

Name: High-Performance OEM by-Pass Valve for Optimal Pressure Regulation
Brand: Mudanjiang Kaidi Petroleum Machinery Co., Ltd.
SKU: 2091934622

Heilongjiang, ChinaMudanjiang Kaidi Petroleum Machinery Co., Ltd.

US$288.00-1,299.00

1 Piece

Sample price:US$1000.00/piece.Request sample

Product profile

Customization

Available

Check Valve Assembly O.D.

34mm

Landing Sub O.D.

89mm

Model NO.

Kelly Valve/Fosv/Drop-in Valve

Stop Ring I.D.

31mm

Working Pressure

35 (70)MPa

Transport Package

Wooden

Specification

89-229mm

Trademark

KAIDI

Origin

China

HS Code

8481300000

Production Capacity

50000pieces/Year

Key features

Custom Manufacturing: Full customization from samples, designs, or drawings to meet specific needs.

Special Material Processing: Expert processing of nickel-based and titanium alloys for high strength and corrosion resistance.

Blowout Prevention: Prevents upward flow through drill pipe, significantly improving well control safety.

Pressure Regulation: Optimal pressure regulation with working pressure up to 70 MPa for various drilling situations.

100% Quality Inspection: All finished products undergo strict visual inspection to ensure reliability and quality.

Full Bore Sub Design: Allows fluid pumping downward to circulate the well without restricting flow.

Company profile

Importers and ExportersYears of Export ExperienceQuality AssuranceHigh Repeat Buyers Choice

Mudanjiang Kaidi Petroleum Machinery Co., Ltd.

Heilongjiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 10 years CertifiedNearest Port: DalianAverage Response Time: ≤1.35h

AI-Powered supplier vetting

SummaryKaidi Petroleum Machinery is a limited company with 21 employees, focused on API oilfield drilling tools and non-standard OEM products. It reports OEM service for well-known brands, modern CNC-based production equipment, two production lines, and export experience of 10 years. Its customization capabilities cover samples, designs, minor changes, full customization, and flexible customization. Quality controls include documented inspection instructions, quality assurance, traceable raw-material identification, complaint procedures, and corrective-action processes. However, it reports no supplier-management certification, no available SDK, only one R&D engineer, and no available R&D audit documentation. Financial credibility cannot be assessed because the provided financial fields contain years rather than financial results or monetary data.

Supplier typeThe supplier is identified as a limited company with 21 employees and no parent group affiliation. Its stated business is technology-based petroleum equipment, specifically API oilfield drilling tools and non-standard OEM products.

CertificationsNo supplier-management system certification is reported. This is a stated absence of certification evidence, although the supplier does report quality assurance, traceability, documented procedures, and maintained quality records.

After-Sales capabilityThe supplier has a clear customer-complaint procedure with records, and it maintains written procedures and records for service-capability assessment and corrective/preventive actions. These controls support after-sales handling, but no specific response-time or service coverage information is provided.

Production capacityProduction resources include CNC cutting and machining equipment, CNC and conventional lathes, laser marking, sandblasting, cranes, modern workshops, two production lines, and eight quality-control testing devices. The supplier also reports a lead time within 15 workdays during off-peak seasons, supporting an established production capability.

Customization capabilityThe supplier explicitly offers customization from samples and designs, minor and full customization, and flexible customization. It also reports strong customization for special-alloy processing and OEM services for well-known brands, providing direct evidence of broad customization capability.