Do you provide warranty and after-sales service?

Yes, we respond to issues within 12 hours and offer lifetime service with half-price spare parts.

Can you handle OEM orders?

Yes, we finish OEM production within 20-40 days after payment is confirmed.

What shipping methods are available?

We offer DHL, FedEx, UPS, TNT for small parcels, and air or sea freight for large cargo.

Hydraulic Stainless Steel Air Blow Check Valve

Name: Hydraulic Stainless Steel Air Blow Check Valve
Brand: QILI HOLDING GROUP CO., LTD.
SKU: 690408031

Zhejiang, ChinaQILI HOLDING GROUP CO., LTD.

US$10.00-15.00

1 Piece

Sample price:US$0.00/piece.Request sample

Product profile

Customization

Available

Media

Water

Temperature

Low Temperature

Model NO.

ql04

Material

Stainless Steel

Connection Form

Clamp

Structure

Swing

Pressure

High Pressure

Function

Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence

Flow Direction

Unidirection

Standard

DIN

Application

Water Industrial Usage

Size

1"-4"

Seal

Silicon, EPDM FPM

Processing

CNC Machine

Medium

Beer, Dairy, Beverage, Pharmacy

Place of Origin

Zhejiang, China (Mainland)

Craft

Forged

Transport Package

Plywood Case

Specification

SGS, BV, 3A

Trademark

Origin

Wenzhou

HS Code

8481100090

Production Capacity

1000/Month

Key features

Food Grade Material: Made of SS304 or SS316L stainless steel, suitable for dairy, beer, and pharmaceutical industries.

International Standards: Complies with ISO, DIN, IDF, SMS, and 3A standards for sanitary fluid equipment.

Customizable Options: Sizes 1-4 inches available with Silicon, EPDM, or FPM seal options and CNC processing.

FDA and CE Certified: All materials meet FDA, ISO, and 3A certificate requirements for safety and quality.

OEM Service: Supports OEM production with a lead time of 20-40 days after payment confirmation.

Lifetime Warranty: Lifetime service support with spare parts available at half price for any product issues.

Fast Sample Delivery: Samples can be dispatched within 2 to 5 days via sea, air, or express courier.

High Pressure Resistance: Designed as a high-pressure swing check valve with unidirectional flow for industrial use.

Company profile

QILI HOLDING GROUP CO., LTD.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2006-01-01Nearest Port: Ningbo ,Shanghai,Shenzhen,QingdaoAverage Response Time: >24hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryQILI HOLDING GROUP CO., LTD. is identified as a China-based manufacturer/factory with facilities in Wenzhou, Zhejiang. The supplied information indicates four production lines, 50 quality-control staff, 11–20 years of combined R&D-engineer experience, and reported annual production of 5,000,000 sanitary valve and fitting pieces. It holds ISO 9001 certification and describes multiple specialized workshops, including CNC machining, forming and polishing, hot forging, BPE fittings, and valve production. The company reports exporting to more than 60 countries since 2006, with exports representing 90% of total sales. It states that it provides design, manufacturing, sales, and after-service capabilities, although detailed after-sales procedures are not provided. Custom fitting production is explicitly mentioned. Available trade data records one transaction and one associated buyer, so customer-case evidence is limited.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and operates in manufacturing from an address in Wenzhou, Zhejiang, China. However, one record also classifies the company nature as a trading company, creating a conflicting secondary classification.

CertificationsThe supplier is explicitly reported to hold ISO 9001 certification, providing direct evidence of a certified quality-management system.

After-Sales capabilityQILI states that its capabilities cover sales and after-service and that it provides service to customers. The slices do not specify service channels, response times, warranty terms, or repair processes, so the stated capability is positive but not operationally detailed.

R&D capabilityThe supplier has 11–20 years of combined R&D-engineer experience and operates specialized workshops including CNC machining, hot forging, and fittings production. These facts support technical development capability, although no specific patented products or quantified R&D achievements are provided.

Production capacityThe supplier reports four production lines, 50 quality-control staff, and annual output of 5,000,000 sanitary valve and fitting pieces. Its described eight professional workshops and stated pre-delivery quality checks provide direct evidence of substantial manufacturing and quality-control capacity.

Customization capabilityThe company explicitly describes an Anhui mass-production base with CNC machining and the ability to make custom fittings. This directly supports customization capability for fitting-related products.

Client casesThe supplier states that its products are exported to more than 60 countries and lists multiple export markets; one associated buyer, LES INSTRUMENTS PITANCO INC, and one trade transaction are also recorded. These references indicate international customer exposure, but the named customer evidence and transaction history are limited.