Two Way Check Valve Coupling Plugs manufacturer, supplier, and exporter in India

01 — Overview

Buy best price high-quality, corrosion resistant Two Way Check Valve Coupling Plugs, Two Way Check Valve Quick Release Couplings, Double Shut-Off Hydraulic Couplings, and High-Pressure Instrumentation Quick Connectors from Pioneer Industries recognized for manufacturing quality-tested fluid power components at international standards.

At Pioneer Industries, we offer these Industrial Two Way Check Valve Coupling Plugs having utmost functionality for zero-spill disconnection in hydraulic systems. We are a manufacturer, supplier of Two Way Check Valve Coupling Plugs and India’s leading Quick Release Coupling Exporters in Mumbai.

Global Supply

Pioneer Industries manufacturing and exporting high-quality Two Way Check Valve Coupling Plugs worldwide.

Pioneer Industries manufactures and exports Two Way Check Valve Coupling Plugs to leading hydraulic original equipment manufacturers (OEMs), oilfield service contractors, and processing plants across 85+ countries. We maintain extensive stock in all standard fractional and metric thread styles.

Every Two Way Check Valve Coupling Plugs is machined on multi-axis CNC turn-mill centers from solid bar stock, followed by ultrasonic cleaning and nitrogen pressure testing to verify zero seat leakage.

02 — Product Detail

Description of Two Way Check Valve Coupling Plugs

Two Way Check Valve Coupling Plugs represents the high-performance Coupling Plug (Male Half / Nipple) engineered for high-pressure hydraulic and fluid transfer circuits where both line sides must be positively isolated immediately upon disconnection.

Material of Construction: Stainless Steel (SS 304, SS 316, SS 316L), Carbon Steel with zinc-trivalent plating, and Forged Brass with precision stainless steel return springs.

Fully compliant with ISO 7241-1 Series B dimensional profiles for universal interchangeability with international quick couplings.

Features Two Way Check Valve Coupling Plugs:

Two-way poppet shut-off valve design eliminates fluid loss and environmental contamination during disconnection.
High-flow internal core geometry delivers minimal pressure drop and avoids cavitation in hydraulic circuits.
Stainless steel Grade 316 locking balls ensure secure mechanical capture and rapid quick-connect coupling.
Heat-treated critical wear surfaces resist brinelling under severe pulsating hydraulic flow.
Available with FKM (Viton), NBR, EPDM, or Kalrez elastomeric seals for extreme fluid compatibility.
Standard female NPT and BSPP parallel threaded connection ports for direct piping integration.
Engineered 4:1 safety factor against hydrostatic burst pressure complying with ASME B31.3.
Knurled sleeve provides positive ergonomic grip during tool-free manual operation.

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Specification

Sizes: 1/8″ to 2″ (DN6 to DN50). Port Connections: NPT, BSPP, BSPT. Pressure Ratings: Up to 450 bar (6,500 PSI). Materials: SS 316, SS 304, Brass, Carbon Steel.

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Technical Specifications & Dimensions

Two Way Check Valve Coupling Plugs Dimensional Tables

Explore standard engineering dimensional configurations for Metric (mm) and Imperial (Inch) Two Way Check Valve Coupling Plugs manufactured according to ISO 7241-1 Series B standards.

Metric Two Way Check Valve Coupling Plugs Dimensions (DN6 to DN50)

Standard Metric Sizes

Part No.	Body Size	Thread (P)	Ø Body (mm)	Length (mm)	Hex (mm)	Working Pressure (bar)
DCVP-02	DN6 (1/8″)	1/8″ BSPP	25.0	48.5	19.0	450
DCVP-04	DN10 (1/4″)	1/4″ BSPP	28.5	57.0	22.0	400
DCVP-06	DN12 (3/8″)	3/8″ BSPP	35.0	66.0	27.0	350
DCVP-08	DN15 (1/2″)	1/2″ BSPP	44.5	74.0	32.0	300
DCVP-12	DN20 (3/4″)	3/4″ BSPP	54.0	88.0	38.0	250
DCVP-16	DN25 (1″)	1″ BSPP	63.5	102.0	45.0	200
DCVP-20	DN32 (1-1/4″)	1-1/4″ BSPP	75.0	118.0	55.0	160
DCVP-24	DN40 (1-1/2″)	1-1/2″ BSPP	86.0	134.0	65.0	140

Fractional / Imperial Two Way Check Valve Coupling Plugs Dimensions (1/8″ to 1-1/2″)

Standard Fractional Sizes

Part No.	Body Size	Thread (NPT)	Ø Body (in)	Length (in)	Hex (in)	Working Pressure (PSI)
IDCVP-02	1/8″	1/8″ NPT	0.98″	1.91″	0.75″	6,525
IDCVP-04	1/4″	1/4″ NPT	1.12″	2.24″	0.88″	5,800
IDCVP-06	3/8″	3/8″ NPT	1.38″	2.60″	1.06″	5,075
IDCVP-08	1/2″	1/2″ NPT	1.75″	2.91″	1.25″	4,350
IDCVP-12	3/4″	3/4″ NPT	2.13″	3.46″	1.50″	3,625
IDCVP-16	1″	1″ NPT	2.50″	4.02″	1.77″	2,900
IDCVP-20	1-1/4″	1-1/4″ NPT	2.95″	4.65″	2.17″	2,320
IDCVP-24	1-1/2″	1-1/2″ NPT	3.39″	5.28″	2.56″	2,030

Material Grades, Construction & Manufacturing Standards

ASTM / ASME / ISO Certified

Material Group	Standard Specification & Codes	Available Grades
Austenitic Stainless Steel (300 Series)	ASTM A276, ASTM A479, ASME SA479, EN 10088-3	SS 304 SS 304L SS 316 SS 316L SS 321
Duplex & High Nickel Alloys	ASTM A182, ASTM B164, ASTM B574, NACE MR0175 / ISO 15156	Duplex 2205 Super Duplex 2507 Monel 400 Hastelloy C-276 Inconel 625
High Grade Brass & Carbon Steel	IS 319 Gr. 1, BS 2874 CZ121, ASTM A108 Zinc-Trivalent Plated	Free Cutting Brass Forging Brass High Tensile Carbon Steel
Seal Elastomers & Temperature Ratings	ASTM D2000, FDA 21 CFR 177.2600	NBR (-20°C to +100°C) FKM / Viton (-20°C to +200°C) EPDM (-50°C to +150°C) PTFE (-60°C to +260°C)

Customization Available: Looking for specific seal elastomers (Viton, EPDM, Kalrez, PTFE) or special body alloys (Brass, Carbon Steel, SS 304, SS 316, Super Duplex, Monel)? Pioneer Industries manufactures tailor-made Quick Release Couplings for extreme conditions. Contact us at +91 9821023876 or email inquiry@pioneerfitting.com.

Oil and gas –

Pioneer Quick Release Couplings deliver rapid, leak-free connection for hydraulic power packs, blowout preventer (BOP) control lines, chemical injection skids, and offshore umbilical testing.

Building and Construction –

High-pressure hydraulic equipment, pile drivers, excavators, and concrete pumping rigs rely on our rugged quick couplers for fast, tool-free field attachment and zero-leak reliability.

Chemical refining –

Engineered in corrosion-resistant stainless steel with fluorocarbon or PTFE seals, our couplings ensure zero-emission transfer of volatile hydrocarbons, aggressive acids, and caustic solutions.

Marine & Offshore –

Marine deck machinery, dive support systems, ROV umbilicals, and harbor bunkering lines demand the exceptional pitting resistance and anti-galling performance of our 316/316L quick couplings.

Automobile & Transportation –

Automated assembly plants, robotic paint lines, brake fluid charging systems, and pneumatic test benches utilize our quick release couplings for rapid tool changes and zero downtime.

Power generation –

Turbine governor hydraulics, generator cooling water circuits, transformer oil transfer lines, and boiler feed sampling stations utilize Pioneer high-temperature, high-pressure couplings.

Agriculture & Forestry –

Tractor rear hydraulic remotes, combine harvester implements, and spray rigs rely on quick connect couplings for effortless, spill-free connection under challenging environmental conditions.

Military & Defence –

Combat support vehicles, naval fluid systems, portable refueling skids, and aerospace ground support equipment depend on Pioneer couplings designed to survive severe shock, vibration, and climatic extremes.

06 — FAQs

Frequently Asked Questions about Two Way Check Valve Coupling Plugs

Answers to the technical questions fluid power engineers, maintenance superintendents, and piping designers ask when specifying Quick Release Couplings from Pioneer Industries.

Two Way Check Valve Coupling Plugs acts as the precision-profiled male insert half of a two-way shut-off coupling system, housing an internal spring-loaded check valve that seats immediately upon uncoupling to prevent line discharge. When connected to its matching counterpart, both internal valves push against each other to open fully, enabling smooth hydraulic transmission. Upon retraction of the socket sleeve, both valves seat instantly before mechanical separation, preventing fluid loss from either line.

Our precision poppet design with resilient elastomeric O-rings limits disconnection fluid spillage to negligible micro-droplets (typically 0.05 cc to 0.4 cc depending on bore size), dramatically exceeding OSHA environmental cleanliness and safety regulations.

We manufacture Two Way Check Valve Coupling Plugs in ASTM A276/A479 Grade 316/316L stainless steel for corrosive and offshore duty, high-tensile carbon steel (zinc-nickel trivalent plated for 1,000+ hour salt spray resistance), and forging grade brass (CZ121) for non-ferrous water and fuel systems.

Standard working pressures range up to 450 bar (6,500 PSI) for sizes 1/8″ to 1/2″, and up to 300 bar (4,350 PSI) for 3/4″ to 1-1/4″ sizes, engineered with an ASME B31.3 4:1 safety factor.

The internal valve features a dual-stage sealing geometry: an initial precision-ground metal-to-metal seating face backed by an elastomeric Viton or NBR seal. Low line pressures seat the elastomer positively, while surging backpressure forces the metal surfaces tightly together.

Standard models require minimal line backpressure to connect by hand. For circuits with trapped thermal pressure, Pioneer provides Connect-Under-Pressure (CUP) plugs with an integrated internal micro-relief pin allowing effortless connection up to 200 bar.

Yes. Pioneer Double Check Valve components strictly comply with ISO 7241-1 Series B dimensional tolerances, guaranteeing 100% mechanical interchangeability with Parker 60-Series, Hansen HK-Series, and Aeroquip FD45-Series couplings.

Standard end ports are machined with Female NPT (ASME B1.20.1), Female BSPP (ISO 228) with flat face sealing, Female BSPT (ISO 7/1), and custom metric threads with copper gasket or O-ring port chambers.

With standard FKM (Viton) seals, operating limits range from -20°C to +200°C (-4°F to +392°F). Low-temperature fluorosilicone seals operate down to -50°C, while PTFE/metallic seats support cryogenic transfer.

Every production lot is provided with an EN 10204 Type 3.1 Mill Test Certificate verifying raw material ladle chemistry, mechanical hardness, heat treatment, 100% nitrogen bubble-leak inspection, and hydrostatic pressure certification.

Note: Please note that the information on this document is for illustration purposes only as information may vary with individual products, their grade and applications industries or uses and therefore cannot be guaranteed as accurate. © Copyright 2026 © Pioneer Industries All Rights Reserved (Terms of Use). Recreation of any materials from the site is strictly prohibited without permission. Pioneer Industries’ products are sold exclusively through Pioneer Industries’ website. Use Terms | Privacy. Please contact us to discuss precise product specifications and requirements and obtain advice on which products are required to suit your exact application needs inquiry@pioneerfitting.com