THE UK’S LARGEST MANUFACTURER AND DISTRIBUTOR OF 3-WAY BALL VALVES

High spec and robust construction

Constructed from 316 Stainless Steel and built to the highest specification, the valve ball is fully encapsulated in PTFE for optimal cleanliness.

Plus, flow routing options of “T” port and “L” port are available from our stock to meet all your process application requirements. 

Whatever your sector — Food and Beverage, Pharmaceutical, Biomedical or Chemical — with the options of end fitting, actuation, Diamond 3 Way Ball Valves are up to the task. 

Exceptional quality

All of our hygienic valves meet the exacting manufacturing and quality standards of ISO 9001:2015. A standard you can trust thanks to regular third party inspections, product tests and reporting throughout their manufacture.

Tailored solutions

Tell us your precise requirements for your 3-way ball valves and we’ll get to work. This includes conducting a Contract Review Meeting to ensure the entire team working on your order is clear on exactly what you need. 

If you have bespoke needs, we can tailor a solution, making use of our fabrication facility. All agreements are documented so you can be certain that we have your requirements on board.

Comprehensive traceability and Certification

Material traceability is of prime importance to us for all of our products. Our material identification allow us to trace materials back to their origin and provide documentation.

For your complete peace of mind and to meet strict industry requirements, we provide full certification for all of our products. This includes: 

  • Certificates of Conformance
  • EP or Passivation Certificates
  • Qualifications and Procedures 
  • Component material certificates
  • Valve Test certificates
  • Food contact safe certificates (with relevant FDA schedule numbers for the material)

Complete compliance with EU law and ATEX

We provide statements of compliance with every Diamond valve where required, as per European Union Directives. We also fully comply with the electrical bias ATEX directive for the safety of operation of our products in potentially explosive atmospheres. Furthermore, we can provide many other specialist certificates on request.

Diamond Butterfly Valves

The Diamond Butterfly Valve is a hygienic, in-line, 1/4 turn or multi-position unit for manual and actuated service.

Maximum Operating Pressure: 10 Bar. Working Temperature dependent on seal materials range -10°C up to 150°C. Valves can be supplied to operate outside these parameters – please enquire.

For other combinations, contact DPL.

Actuation and Control
Butterfly valves can be supplied fitted and tested with a comprehensive range of pneumatic and electric actuators including all ancilliary equipment such as solenoids, limit switches and positioners.

ATEX approved version available for use in potentially explosive atmospheres.

Group 2, Category 2, Gas and dust compliant

Diamond Actuators

DPL stainless steel actuators are designed to fit quarter turn valves and offer you electronic control.

Stainless Steel Actuator and Switchbox – Dimensions and Technical Data

DPL’s Hygienic Valve Range

Trusted hygienic stainless steel valves, that are fully maintainable

From food processing to pharmaceuticals, Diamond valves provide the highest performance standards.

When you choose DPL for your Diamond valves, you get:

  • Expert advice to help you choose the right Diamond valves for your application
  • Guaranteed compatibility thanks to our wide range of end connections
  • Clear traceability of parts and spares thanks to our dedicated valve coding
  • Actuators and switch boxes for central computer control to meet your control requirements

Unions – RJT (BS4825 PT5)

The RJT union is the most widely specified fitting for the UK food and beverage industry. It is particularly suitable for applications requiring frequent dismantling.

  • Robust construction enabling repeated dismantling for sterilising and washing, with no reduction in performance.
  • 10 bar working pressure.
  • Wide range of seal material including Nitrile, EPDM, Viton and PTFE.
  • Stainless steel 316 versions available.
  • Size range 1’ – 4”
Size Hex Nut Seal Bore Size (mm)
 in A/F (mm) L (mm) ID (mm)
 1 51 22 27 22.2
 1.5 65 22 39.7 34.9
 2 79 22 52.4 47.6
 2.5 92 22 65.1 60.3
 3 105 22 77.8 73.0
 4 130 22 103.2 97.6 (14 swg)
 CODE R101 RW32
90 BEND MALE x FEMALE CODE R146
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
A (mm) 57 77 102 127 147 187
B (mm) 66 86 111 136 156 196

MALE TO BSP MALE ADAPTOR CODE R135
Size 1.0” 1.5” 2.0” 2.5” 3.0”
L (mm) 51 57 60 63 64
AF (mm) 42 56 70 90 106

45° BEND FEMALE x MALE CODE R192
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
A (mm) 35 44 57 71 81 98
B (mm) 44 53 66 80 90 107

HOSE LINER CODE R125
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
L (mm) 89 95 98 108 114 165

TEE MALE x FEMALE x FEMALE CODE R164
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
A (mm) 57 77 102 127 147 187
B (mm) 66 88 111 135 156 196

MALE TO BSP FEMALE ADAPTOR CODE R186
Size 1.0” 1.5” 2.0” 2.5” 3.0”
L (mm) 44 50 54 5444 55
A/F (mm) 42 56 70 90 106

Unions – ILC

The High Pressure ILC union has been specially developed by  DPL to meet your needs. It combines the properties of  quick connection and hygiene in a unique coupling.

  • Metal to metal seat for controlled compression.
  • Crevice free.
  • CIP compatible design.
  • Easily assembled.
  • Wide range of seal material including Nitrile,  EPDM, Viton and PTFE.
  • Stainless steel 316L.
  • Size range 1/2” – 4”.
Size Hex Nut Seal Bore Size
(mm)
Maximum Operating Pressure
in A/F (mm) ID (mm)
1 51 22.2 22.2 40 Bar (588 psi)
1.5 65 34.9 34.9 40 Bar (588 psi)
2 79 47.6 47.6 30 Bar (441 psi)
2.5 92 60.3 60.3 24 Bar (353 psi)
3 105 73.0 73.0 20 Bar (294 psi)
4 130 97.5 97.6 (14 swg) 19 Bar (279 psi)
CODE L101 LW32

The above maximum pressure ratings can be adopted up to a maximum temperature of 140 deg C if suitable sealing materials are used.

 

Size Hex Nut Liner Seal Male
 in L (mm) A/F(mm) L (mm) ID (mm) L (mm)
 0.5 13.4 28 16 9.5 16
 0.75 16 38 19 15.8 19
 CODE L101 LW74 LW132

90° BEND MALE x FEMALE CODE L146
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
A (mm) 65 85 110 135 155 195

ADAPTOR – MALE TO BSP MALE CODE L135
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
L (mm) 51 57 60 63 64
A/F (mm) 42 56 70 90 106

45 BEND FEMALE X MALE CODE L192
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
B (mm) 43 52 65 79 89 106

HOSE LINER CODE L125
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
L (mm) 89 95 98 108 114 165

TEE MALE OR FEMALE*
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
A (mm) 65 85 110 135 155 195

ADAPTOR – MALE TO BSP FEMALE CODE L186
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
L (mm) 44 50 54 54 54
A/F (mm) 42 56 70 90 106

*REQUEST CODE FOR COMBINATIONS

Unions – Clamp (BS4825 PT3)

The Clamp union offers you simple, rapid disconnection without the use of tools, saving time and money.

  • Identical ferrules helps simplify plant design and maintenance
  • 10 bar working pressure (1/2” – 4”)
  • Crevice free, fully hygienic
  • CIP compatible
  • Lipped seal aids assembly
  • Wide range of seal material including Silicone, EPDM, Viton and PTFE
  • Stainless steel 316L contact parts
  • Size range 1/2” – 12”
Size OD (mm) Bore Size (mm)
 0.5” 25.0 9.5
 0.75” 25.0 16.0
 1.0” 50.5 22.2
 1.5” 50.5 34.9
 2.0” 64.0 47.6
 2.5” 77.5 60.3
 3.0” 91.0 73.0
 4.0” 119 97.6 (14 swg)
CLAMP 90° BEND CODE TC128
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
A (mm) 65 85 110 135 155 195

CLAMP 45° BEND CODE TC192
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
A (mm) 43 52 65 79 89 106

CLAMP HOSE LINER CODE TC125
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
L (mm) 97 103 106 116 122 173

CLAMP TEE CODE TC109
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
A (mm) 65 85 110 135 155 196

CLAMP PLAIN BLANK CODE TC103
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
OD (mm) 50.5 50.5 64 77.5 91 119

Stainless Steel Filters

Stainless Steel Filters

ATEX approved version available – Enquire for more details!

To ensure that product remains free from unwanted foreign bodies and oversize solids, DPL offer a range of filters to suit your requirements. Other sizes and designs are available, please enquire.

All the following dimensions apply to filters with fitted ends as follows:
ILC, IDF, RJT Male, ILC Female and Clamp – other variations available, please ask.

Side Entry Filter
The Side Entry filter allows the element to be removed for cleaning or replaced without taking the filter assembly out of the pipeline.

Available in 1.0” to 3.0” size range
See table below for avilable filtration sizes

‘Y’ Type Filter
The ‘Y’ Type filter is designed for use where ‘in-line’ filtration is required. The element can be changed or cleaned without removing the assembly from the pipeline.

Y TYPE FILTER
Size 1.0” 1.5” 2.0” 2.5” 3.0”
A (mm) 277 316 374 434 483
B (mm) 356 364 376 389 400

See table below for avilable filtration sizes

Pump Protection Filter
The Pump Protection filter is used upstream of the pump for protection from foreign bodies and oversize solids.

PUMP PROTECTION FILTER
Size 1.0” 1.5” 2.0” 2.5” 3.0”
A (mm) 247 286 343 404 453
B (mm) 186 194 206 219 229

3mm or 6mm Perforated element fitted as standard (no mesh)

Open area for either option is 40%

 

 

FILTRATION SIZES AVAILABLE
Mesh per inch 10 20 60 100
 Wire Dia mm 0.56 0.32 0.16 0.1
 Aperture mm 6.0 2.0 1.0 0.25 0.16
 Open area % 40 60 57 38 38
Side entry and Y type filters are supplied with elements consisting of a 6mm perforated tube inside a mesh sleeve. The 6mm perforated tube is also available without the mesh sleeve as shown on the table. Pump protection filters are supplied with either a 3mm or 6mm perforated tube only (no mesh). Wetted parts are 316L grade stainless steel, seal material is EPDM / Nitrile, hygienic design throughout.

ATEX approved version available for use in potentially explosive atmospheres.

Group 2, Category 2,  Gas and dust compliant

ATEX

Plain Bends & Tees (BS4825 PT2)

Plain Bends & Tees (BS4825 PT2)

  • Special bends can be made to your requirements.
  • Jacketed pipework incorporating bends, together with jacketed bends and tees, are available for applications where the product is continually heated. Please contact DPL.

 

  • Plain bends and tees conform to ISO standards and BS 4825 PT 2 for orbital or hand welding on site.
  • Plain bends can be supplied with radii other than BS 4825 if required. Please consult with DPL.

 

90° PLAIN BEND CODE 77 (ISO) LONG
Size 0.5” 0.75” 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
A (mm) ** ** 65 85 110 135 155 195

**please enquire with DPL

90° PLAIN BEND CODE 78 (BS) SHORT
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
A (mm) 44 64 89 114 134 174
PLAIN PULLED TEE CODE 169
Size 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
A (mm)
44
64
89
114
134
174
B (mm) 14.3 22.2 28.6 34.9 41.3 54
PLAIN TEE CODE 168 WELDING TYPE
Size 0.5” 0.75” 1.0” 1.5” 2.0” 2.5” 3.0” 4.0”
A (mm) 32 44.5 44 64 89 114 134 174
V-02

Hygienic Tube

To compliment the hygienic fittings range, DPL also stock a full range of hygienic tube.

Manufactured from premium grade 316L Stainless Steel which also complies with BS4825, the tube is suited to many industry sectors. These sectors include Dairy, Food and Beverage, Pharmaceutical and Chemical.

Available in 6 meter lengths, the tube has a food grade internal finish and an external dull polish in order to meet the high expectations of the hygienic industry.

Tube lengths can also be cut to suit individual requirements.

Our Tube:

  • Complies with BS4825 to ensure maximum compatibility with your process system.
  • Wide range of tube OD sizes available to suit your application (see Table below)
  • Tube lengths cut to order for ease of shipping etc
  • Fully annealed option to ensure ease of fabrication and manipulation if required
  • Full certification provided on request thus providing full traceability.

Tube size table large