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BASIC PROGRAM

Product catalog summary

Introduction and Company Overview

The document presents a global valve manufacturer specializing in control, restriction, and shut-off valves. The company operates across three main time zones, offering rapid delivery within 24 hours for series products. It provides comprehensive services including consulting, development, manufacturing, and assembly, serving over 60 countries with multilingual support.

Basic Valve Program

The product portfolio includes a wide variety of ball valves and related components, categorized by connection types (threaded, flanged, SAE, ISO/CETOP, welding), sizes ranging from DN4 to DN200, and functional types such as 2-way, 3-way, and 4-way selector valves. Specialized valves for safety blocks, manifolds, flow control, check valves, and application-specific uses (hydrogen, paints, lacquers, gases) are also offered. Materials include steel, stainless steel, and brass, with pressure ratings from PN30 up to PN1000 bar depending on the model.

Product Specifications and Variants

2-way ball valves: Available with multiple connection types, sizes DN4 to DN200, pressure ratings up to PN800 bar.
Multiway ball valves: 3-way and 4-way valves with threaded connections, pressure ratings up to PN500 bar.
Specialized valves: Designed for hydrogen (up to PN1000 bar), paints, lacquers, gases, and isocyanates.
Fire-safe ball valves: Certified to ISO 10497 and API 607, constructed with materials such as AISI316Ti stainless steel, PEEK seats, and graphite secondary seals to ensure safe operation under fire conditions.

Accessories and Actuation

The company offers a broad range of accessories and actuators to enhance valve functionality, including:

Connection flanges (SAE, ISO)
Locking devices and detents to prevent accidental operation
Limit switches (proximity and mechanical)
Manual, electric, and pneumatic actuators
Mounting kits and assembly bores for direct installation
Valve combinations featuring single-handle operation and double isolation blocks with bleed and bypass functions

Industry Applications

The valves serve diverse sectors such as automotive, construction and agricultural machinery, fire protection, renewable energy, shipbuilding and offshore, mining and tunneling, oil and gas, steel, and chemical industries. The company emphasizes delivering safe, high-quality, and industry-specific solutions.

Safety and Compliance

Fire-safe Valves: Designed to prevent fire propagation in piping systems, these valves provide reliable sealing and secure operation under extreme conditions. They support bi-directional flow and various connection types, meeting ISO 10497 and API 607 certifications.

ATEX Compliance: According to directive 2014/34/EU, ball valves are not marked with the Ex symbol as they are not fast-acting valves and are considered safe in explosive atmospheres. However, the company’s risk analysis identified potential electrical charge buildup inside valves, recommending electrically conductive ball seats to mitigate ignition risks in explosive environments.

Technical Highlights

Materials: Steel, stainless steel (AISI316Ti), brass
Pressure ratings: PN30 to PN1000 bar depending on valve type
Sizes: DN4 to DN200
Connection types: Threaded (metric, UNC, NPT, DIN), SAE, flanged (ISO, ANSI), welding ends
Sealing materials: PEEK ball seats, FPM (Viton) O-rings, graphite secondary seals
Certifications: ISO 10497, API 607, ATEX directive considerations

Certification and Compliance

MHA ZENTGRAF holds certifications including Pressure Equipment Directive (PED) CE, DIN EN ISO 9001 (Quality Management), and DIN EN ISO 14001 (Environmental Management). It complies with AD-Merkblatt HP 0 standards and provides fire-safe ball valves certified to BS 6755, T.2 API 6 FA, and ISO 10497. Acceptance tests are supervised by major classification societies such as ABS, BV, CC, DNV, NK, and TÜV. Certificates conforming to DIN EN 10204 3.1 and 3.2 are available upon request.

Certificates Available

ISO 9001:2015
ISO 14001:2015
PED/DGRL 2014/68/EU
AD2000 HP-0
VdS Approved Manufacturer
ATEX 2014/34/EU Declaration
Fire-Safe Certification
DNV Type Approval
ABS Design Approval
EAC (Russia)
UKRSEPRO (Ukraine)
UKCA (United Kingdom)

Product and Quality Assurance

The company specializes in flow control technology with a focus on fire-safe ball valves that meet stringent international standards. High-quality manufacturing processes and environmental responsibility are ensured through comprehensive certifications.

Contact Information and Global Presence

MHA ZENTGRAF operates globally with headquarters in Germany and subsidiaries/offices in China (Shanghai), India (Pune), and the USA (Buffalo, NY). Contact details include phone, fax, email, and websites for each location, facilitating international customer support and sales.

Catalog excerpts

BASIC PROGRAM

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Wollen Sie etwas Do you want to regeln, drosseln control, restrict or shut oder absperren? something off? Dann sollten wir miteinander reden. Denn Then we should talk to each other. Because regeln, drosseln und absperren können we are really good at controlling, restric- wir richtig gut. So gut, dass wir mit diesem ting and shutting off. So good, that we are Know-how in jeder der drei Hauptzeitzonen represented with this know-how in each vertreten sind. So schnell, dass unsere kur- of the three main time zones. So fast, that zen Durchlaufzeiten den Versand unserer our short processing times allow...

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Basic Valve Program 2-way threaded DN 4 to DN 50 solution? After a custom us now! - Speak with

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AnwendungsApplicationspezifische specific ball valves Kugelhähne Warum haben gerade wir das genau Why do we have just the right product for richtige Produkt für Sie? Weil wir eine sehr you? Because we can offer a very large hohe Zahl an standardisierten Lösungen number of standardised solutions and an und eine unbegrenzte Zahl an individuellen unlimited number of individual solutions. Lösungen bieten können. We supply high-quality ball valves and Wir liefern Ihnen hochwertige Kugelhähne valves at reasonable prices – including und Ventile zu einem vernünftigen Preis – branch competence in the...

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2-way ball valves 2-way ball valves with threaded connections BKH / BKHP500 MKHP420 Stahl / Edelstahl steel / stainless steel 2-way low-pressure ball valves with threaded connections NKH Messing / Edelstahl brass / stainless steel 2-way ball valves with SAE connections BKH/BKHP-SAEFS MKHP-SAEFS Stahl / Edelstahl steel / stainless steel BKH/BKHP-SAE MKHP-SAE BKH/BKHP-SAE/SAEFS MKHP-SAE/SAEFS KH-SAE Stahl / Edelstahl metr. / UNC-Gewinde steel / stainless steel metric / UNC threads 2-way ball valves flangeable with SAE connections KHZ-SAE KH-SAE Stahl / Edelstahl metr. / UNC-Gewinde steel / stainless...

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2-way ball valves with welding ends BKH-AS MKHP-AS BKH-ASK KH-AS Stahl / Edelstahl steel / stainless steel 2-way ball valves with DIN connections BKH-F MKHP-F KH-DIN Multiway ball valves 3/2-way selector ball valves with threaded connections / SAE connections BK3 / BK3-S BK3K-SAE Stahl / Edelstahl steel / stainless steel 3/2-way low-pressure selector ball valves with threaded connections NK3 Messing / Edelstahl brass / stainless steel 3-way and 4-way ball valves with threaded connections 3KH 4KH Stahl / Edelstahl steel / stainl

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Kugelhähne für Plattenmontage Kugelhähne für Plattenaufbau Ball valves for manifold mounting Ball valves for manifold mounting PKH PK3 / PK3-S MPKH3 / MPKH4 Stahl / Edelstahl Anwendungsspezifische Kugelhähne 2-Wege Höchstdruckkugelhähne mit Gewindeanschlüssen PN420-500 bar PN315-500 bar PN420-500 bar steel / stainless steel Application-specific ball valves 2-way highest-pressure ball valves with threaded connections BKHP800 stainless steel Stahl / Edelstahl steel / stainless steel 2-way ball valves for hydrogen applications with threaded connections HFKH500 HFKH650 HFKH1000 2-Wege-Kugelhähne...

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2-way ball valves for isocyanate with threaded connections BKH MKHP420 Stahl 2-way ball valves with venting hole and with threaded connections BKH 2-way ball valves with fire-safe approval (bi-direct) BKH Edelstahl mit Gewindeanschlüssen stainless steel with threaded connections stainless steel with SAE connections Ball valve combinations Ball valve combinations with threaded connections BKH / BKHP500 MKHP420 BK3 3-Wege und 4-Wege Kugelhahn-Kombinationen 3-and 4-way ball valve combinations with mit Gewindeanschlüssen threaded connections 3KH/4KH lever on top PN250-500 bar DN4-25/40 3KH/4KH lever...

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Flow control valves Drosselventile für Rohrleitungseinbau mit Gewinde- Needle valves for piping-system assembly with threaded connections / for manifold mounting / anschlüssen / für Plattenaufbau / für Blockeinbau cartridge assembly NDV NDVP NDVE Stahl / Edelstahl Drosselrückschlagventile für Rohrleitungseinbau mit Gewindeanschlüssen / für Plattenaufbau steel / stainless steel Flow control check valves for piping-system assembly with threaded connections / for manifold mounting NDRV NDRVP Stahl / Edelstahl Rückschlagventile für Rohrleitungseinbau / für Plattenaufbau steel / stainless steel Check...

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Ball valve operations levers actuators Schaltgriffe Antriebe Mounting sets for ... Abschließvorrichtungen Endschalter Näherungsschalter Kombinationen Rasterung locking devices limit switches proximity switches combinations detent Connection flanges SAE-Anschlussflansche ISO-Anschlussflansche SAE connection flanges ISO connection flanges Accumulator safety blocks ASB Stahl / Edelstahl manuell oder elektrisch betrieben Branchenlösungen Beispiellösungen für ... Schiffbau & Offshore Brandschutz Erneuerbare Energien Bau- & Landmaschinen Öl & Gas Automobil Bergbau & Tunnelbohren Prozessindustrie DN10,...

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Unzählige Standard- und kundenspezifische Lösungen Abschließvorrichtungen Locking devices • verhindert unge- wolltes Schalten • verschiedene Varianten • manipulationssicher • safety against unintendant actuation • different types • tamper-proof • verhindert unge- wolltes Schalten • safety against unintendant actuation Assembly bores • direkte Montage • direct installation • pneumatisch • elektrisch • hydraulisch

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Wide range of standard and customized accessories and adaptions Kombinationen • verschiedene Kombinations möglichkeiten • Ein-Hebel Schaltung • ball valve combinations • actuation with one handle • mehr als 15 verschiedene Typen • gemischte Anschlüsse • more than 15 connector types • mixed connector types on valve inlet and outlet Limit switches • induktiv • mechanisch • proximity • mechanical Doppelte Absperrung Double isolation • zwei oder mehrere Ventile in einem Block • Bleed und Bypass Funktionen • combination of two or more valves in one block

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