What materials are available for the valve body and seats?

Body materials include Carbon steel, Stainless steel, Low temperature carbon steel, Duplex, and Special Alloys. Soft seats include PTFE, RPTFE, PEEK, DEVLON, NYLON, and Metal seats like Tungsten Carbide.

What is the minimum order quantity?

The minimum order quantity is 1 piece.

What payment terms do you accept?

We accept LC (Letter of Credit) and T/T (Telegraphic Transfer).

Double Block and Double Bleed Ball Valve

Name: Double Block and Double Bleed Ball Valve
Brand: Lishui Gowin valve technology Co., Ltd.
SKU: 783963135

Zhejiang, ChinaLishui Gowin valve technology Co., Ltd.

US$121.00-1,212.00

1 Piece

Product profile

Customization

Available

Material

Stainless Steel

Connection Form

Flange

Model NO.

DBB41

Driving Mode

Manual

Nominal Pressure

ANSI CLASS 150-900

Channel

Straight Through Type

Structure

Floating Ball Valve

Type

Floating Ball Valve

Function

Blow-Down Valve

Temperature

Ultralow Temperature

Application

Industrial Usage

Pressure

900lb

Body

F316

Ball

F316

Stem

F316

Seat

PTFE

Transport Package

Wooden

Specification

DN15-DN250

Trademark

yuefeng

Origin

Zhejiang Lishui

HS Code

8481804090

Production Capacity

5000

Key features

Double Block & Bleed Design: Provides superior isolation and safety for industrial blow-down applications.

Wide Pressure Range: Supports ANSI Class 150-900 standard, with options up to 2500lb.

Ultralow Temperature Capable: Designed for extreme cold environments with specialized materials.

Extensive Material Options: Body in Carbon/Stainless Steel; Seats in PTFE, PEEK, or Metal.

Flexible Driving Modes: Available in Manual, Worm, Pneumatic, or Hydraulic actuation.

Strict Quality Control: 100% inspection including visual and functional checks before shipment.

OEM/ODM Customization: Full customization available from samples, designs, or minor adjustments.

Comprehensive Certifications: Meets ASME, API, and MSS standards with fire-safe testing (API 607/6FA).

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperiencePatents Awarded

Lishui Gowin valve technology Co., Ltd.

Zhejiang, 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: 16 years CertifiedNearest Port: Shanghai Port; Ningbo PortAverage Response Time: ≤18h

AI-Powered supplier vetting

SummaryYuefeng demonstrates broad customization, ODM and OEM capabilities, with new products reportedly developed within the past year and four years of R&D engineer experience. Its stated certifications include ISO9001, ISO14001, OHSAS18001, TS, API 6D and CE. Production evidence includes seven production lines and an annual ball-valve output of 100,000 pieces, while exports represent 71%–90% of total sales and the supplier has exported for 16 years. Quality assurance and raw-material traceability are present, but several management procedures lack written records. The supplier has no in-stock capacity, overseas warehouse, overseas showroom, overseas agents or branches, and no valid manufacturing-capacity contract with related subcontractors. Financial information is insufficient to assess credibility, and customer-specific cases are not provided.

Supplier typeThe supplier is an export-oriented manufacturer with OEM service for well-known brands, broad product customization, seven production lines, and 16 years of export experience. Its stated export markets include Europe and domestic markets, while it has no overseas agents or branches.

CertificationsThe company description explicitly lists ISO9001, ISO14001, OHSAS18001, the national TS pressure-piping-components license, U.S. API 6D authentication, and EU CE certification. These stated certifications support the supplier’s documented quality, environmental, occupational-safety, and product-compliance credentials.

R&D capabilityThe supplier reports that it developed new products during the past year and provides ODM services. Four years of R&D engineer experience is stated, but no SDK is available, so the evidence supports product-development capability without establishing broader software or integration innovation.

Production capacityThe supplier operates seven production lines and reports annual ball-valve output of 100,000 pieces, with one-month lead times in both peak and off-peak seasons. However, it has no inventory capacity and no valid manufacturing-capacity contract with related subcontractors, creating limitations in stock availability and documented subcontracting assurance.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. It also reports ODM capability, providing direct evidence of a broad customization offering.