Special Hydraulic Test Bench for Check Valves

This Horizontal Side Clamping Jaw Special Hydraulic Test Bench for Check Valves adopts an innovative lateral encircling clamping structure that can precisely complete forward sealing tightness test, reverse pressure bearing test, and shell strength pressure holding inspection for all types of check valves. The whole machine fully complies with GB/T13927-2022 and API 598 international valve pressure testing specifications. Equipped with a high-precision pressure sensor acquisition system and an electric constant pressure holding control system, it features accurate pressure regulation and stable pressure maintenance performance, with a built-in self-locking safety protection interlock device. 

The bench supports both water and air as testing media, efficiently fulfills factory quality inspection procedures for check valves, and effectively guarantees the one-way sealing operation safety of pipeline systems in petrochemical, water supply, power, and other industries. The split layout of the clamping station and integrated control cabinet saves workshop floor space; the side surrounding clamping mode fits swing check valves, lift check valves, wafer check valves, and other mainstream check valve types with irregular outlines perfectly. Adjustable clamping stroke adapts to various nominal diameters from small to medium size. 

The independent pressure loop separately controls shell hydrostatic test and sealing air tightness test, with automatic pressure compensation to eliminate pressure attenuation during the long-time holding period. We can provide CE certification, a multi-language operation panel, and export voltage adaptation for overseas check valve manufacturers. Contact our technical team to obtain a complete technical datasheet and an official quotation within 24 working hours.

Seven Core Competitive Advantages

1.Exclusive Lateral Encircling Jaw Clamping Structure (Core Original Feature) The biggest differentiated advantage of the Horizontal Side Clamping Jaw Special Hydraulic Test Bench for Check Valves: unlike conventional axial end-face jacking clamping, it wraps the valve body from the side direction, perfectly fits the special curved & irregular outline of check valves, no slipping, deflection, or sealing dislocation during pressure testing, ensuring 100% accurate detection data.

2.Full Compatibility with All Mainstream Check Valve Types Adjustable side clamping opening range can accommodate swing check valves, lift check valves, wafer check valves, ball check valves, and other one-way valves widely used in industrial pipelines. One machine covers most common check valve specifications, greatly reducing repeated equipment procurement costs for valve factories.

3.Forward & Reverse Bidirectional Pressure Testing Function Integrated Supports two working modes: forward sealing tightness test (low-pressure air bubble leakage inspection) and reverse pressure bearing strength test (high-pressure water shell test), fully matching the full inspection requirements of check valves stipulated by API 598 standard.

4.High-precision Digital Constant Pressure Holding Control System: Composed of imported pressure transmitters and a PLC control module, the system realizes stepless pressure setting, automatic timing pressure holding, and real-time pressure curve tracking; pressure control error ≤±1%, no manual frequent adjustment is needed, reducing human operation errors.

5.Dual Water & Air Medium Switchable Circulation System Independent water pressurization pipeline and air intake pipeline are arranged separately. Users can switch testing media freely according to inspection procedures; the built-in water storage tank realizes recycled water supply, saving water consumption and workshop cleaning workload.

6.Multi-layer Self-locking Safety Protection Interlock Mechanism Equipped with hydraulic clamping overpressure self-locking protection, pressure over-limit automatic relief, emergency stop power-off protection, three-fold safety interlock; once abnormal conditions occur, the system immediately cuts off pressurization and clamping output, preventing valve bursting and equipment damage, conforming to EU CE industrial machinery safety standards.

7.Reserved Digital Intelligent Upgrade Expansion Port The main electrical cabinet reserves a communication expansion interface; customers can later retrofit touch screen operation, electronic test report export, remote data uploading, and MES system docking functions to realize full digital traceability of batch inspection records.

Complete Technical Parameter Sheet

Seven Applicable Application Scenarios

1.Professional Check Valve Manufacturing Factories: Batch offline delivery inspection of various one-way check valves before shipment.

2.Petrochemical & Natural Gas Pipeline Manufacturers: Pressure verification of pipeline anti-backflow check valves to avoid medium reverse flow risks.

3.Municipal Water Supply & Drainage Projects: Tightness test of urban pipeline backflow preventer check valves for project acceptance.

4.Thermal Power & Central Heating Power Plants: Periodic re-inspection of auxiliary pipeline check valves in circulating water systems.

5.Valve Maintenance & Repair Service Stations: Retest performance after refurbishing old recovered check valves.

6.Overseas Small & Medium Valve Assembly EPC Workshops: Compact exclusive check valve testing equipment with full CE export certification documents.

7.Valve R&D Laboratories: Contrast sealing performance test for new check valve structural prototypes under different pressure grades.

Pre-sales, In-sales & After-sales Global Integrated Service System

Pre-sales Customized Technical Support

Professional check valve testing engineers conduct one-on-one technical communication, confirm valve type, nominal diameter, maximum test pressure, and inspection standards; provide customized clamping fixture drawings and free sample testing services, issue a targeted testing scheme and formal quotation within 24 hours.

In-sales Production & Export Shipment Service

Whole production progress is tracked by real-time video; full-cycle pressure running test is finished before delivery with original test records reserved. The export version adopts thick plywood shock-proof & moisture-proof reinforced packaging, complete hydraulic drawings, electrical schematics, multilingual operation manuals, and customs clearance certification documents are delivered together with the machine.

After-sales Global Quality Assurance Service

Core components (hydraulic clamping cylinder, pressure sensors, PLC controller) enjoy a 24-month global warranty, free replacement parts for non-artificial damage within the warranty period. We provide remote online parameter debugging, full operation video tutorials, coordinate local overseas agents for on-site maintenance; lifelong supply of spare parts and free long-term check valve pressure testing technical consultation.

FAQ & Official Purchase Guide

Frequently Asked Questions

Q1: Can this bench test all types of swing/lift wafer check valves? 

A1: Yes, the lateral encircling clamping structure can wrap irregular valve bodies of all mainstream check valves; adjustable clamping stroke fits different sizes, fully meeting forward & reverse bidirectional testing requirements. 

Q2: Does side clamping affect the sealing precision during pressure holding? 

A2: The clamping force is evenly distributed on the valve body outer wall without extruding the internal sealing pair, so the original sealing performance of the check valve will not be damaged, the detection data is authentic and reliable. 

Q3: Can I upgrade the touch screen automatic report export function later? 

A3: The control system reserves a digital expansion interface at the factory. You can retrofit a touch screen, curve storage, and electronic report export function anytime later. 

Q4: Is CE certification available for overseas export? 

A4: We can complete full CE mechanical safety transformation, configure a multi-language panel and 415V export voltage, provide complete CE documents for customs clearance and overseas project acceptance. 

Q5: What is the standard delivery cycle? 

A5: Standard model delivery cycle: 30 working days; customized fixtures, high-pressure upgraded version: 35 working days.

Purchase Guidance

Please send detailed information including check valve type, caliber range, maximum test pressure, daily inspection quantity, and export demand to our engineering team. We will formulate a complete dedicated check valve pressure testing solution and preferential bulk procurement quotation within 24 hours, supporting annual framework cooperation orders for valve factories and global pipeline EPC supporting projects.