Naval and marine check valves

Brooksbank Valves Ltd. High QualityNaval Valve Solutions......                in service throughout the world

Naval & Marine Check Valves

Swing Check Valves: The swing check valve is a self-actuated non-return valve which is designed to prevent backflow. Fluid flowing in the required direction opens the valve, while reverse / backflow reseats the disk / flapper, closing the valve and preventing flow in the opposite direction.

DPCV130 Dual plate

DPCV132 Dual Plate

PCV70/71 Non-loaded piston

PCV74/75 Spring loaded piston

DPCV130 Dual plate
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DPCV130

Dual Plate Check Valve

The DPCV130 is a dual plate check valve, with a wafer design body. Manufactured as standard in NiAlBr and with a soft seat, to give long service life on seawater applications. In conformance with the Pressure Equipment Directive 97/23/EC

Standard Range, Sizes: 2"  to 24" / Connections: ANSI 150 & 300

Materials

Manufactured from a full range of materials including:

  • Nickel Aluminium Bronze – ASTM B148 C95800
  • Nickel Aluminium Bronze  - DS02 747 PART 3
  • Gunmetal – DS02 830 PART 1
  • Bronze – ASTM B61/B62
  • Brass – BS1400 HTB1
  • Titanium – ASTM B367
  • Hastelloy®
  • Monel®
  • Alternative body & trim materials available on request

Features

  • One piece body
  • Dual disc light weight design
  • Spring assisted closure
  • Soft seat

Options:

  • Trim material: EPDM, NBR, Viton
  • Metal seat

Specifications

  • ANSI B16.5 Flange Dimensions
  • ANSI B16.34 Wall Thickness
  • PED Conformity
DPCV132 Dual Plate
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DPCV132

Dual Plate Check Valve

The DPCV132 is a dual plate check valve, with a fully lugged wafer design body. Manufactured as standard in NiAlBr and with a soft seat, to give long service life on seawater applications. 

In conformance with the Pressure Equipment Directive 97/23/EC

Standard Range, 
Sizes: 2"  to 24" 
Connections: ANSI 150 & 300

Materials

Manufactured from a full range of materials including:

  • Nickel Aluminium Bronze – ASTM B148 C95800
  • Nickel Aluminium Bronze  - DS02 747 PART 3
  • Gunmetal – DS02 830 PART 1
  • Bronze – ASTM B61/B62
  • Brass – BS1400 HTB1
  • Titanium – ASTM B367
  • Hastelloy®
  • Monel®
  • Alternative body & trim materials available on request

Features

One piece body
Dual disc light weight design
Spring assisted closure
Soft seat

Options:

Trim: EPDM, NBR or Viton
Metal seat

Specifications

ANSI B16.5 Flange Dimensions
ANSI B16.34 Wall Thickness
PED Conformity

PCV70/71 Non-loaded piston
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PCV70/71

Piston Check Valve

The PCV70/71 is a piston check valve, with a non-loaded piston and integral cast flanges or screwed connections. Manufactured as standard in NiAlBr giving long service life on seawater applications. In conformance with the Pressure Equipment Directive 97/23/EC

Standard Range,
PCV70 with integral seat,
          Sizes: 1/2" to 2" / Connections: Screwed, ANSI 150 & 300.
PCV71 with renewable seat,
          Sizes: 1/2" to 2" / Connections: Screwed, ANSI 150 & 300.

Materials

Manufactured from a full range of materials including:

  • Nickel Aluminium Bronze – ASTM B148 C95800
  • Nickel Aluminium Bronze  - DS02 747 PART 3
  • Gunmetal – DS02 830 PART 1
  • Bronze – ASTM B61/B62
  • Brass – BS1400 HTB1
  • Titanium – ASTM B367
  • Hastelloy®
  • Monel®
  • Alternative body & trim materials available on request

Features

  • Bolted Bonnet

 

Options:

  • Integral or renewable seats
  • Drain plug 
  • Resilient seat
  • Alternative Threads: NPT, BSPP, BSPT

Specifications

  • ANSI B16.5 Flange Dimensions
  • ANSI B1-20.1 Screwed Ends
  • ANSI B16.10 Face to Face Length
  • ANSI B16.34 Wall Thickness
  • PED Conformity
  • Designed generally in accordance with: BSEN 12288 (formerly BS5154) 
PCV74/75 Spring loaded piston
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PCV74/75

Piston Check Valve

The PCV74/75 is a piston check valve, with a spring-loaded piston and integral cast flanges or screwed connections. Manufactured as standard in NiAlBr giving long service life on seawater applications. In conformance with the Pressure Equipment Directive 97/23/EC

Standard Range,
PCV74 with integral seat,
          Sizes: 1/2"  to 10" / Connections: ANSI 150 & 300. Screwed up to 2"
PCV75 with renewable seat,
          Sizes: 2"  to 10" / Connections: ANSI 150 & 300.

Materials

Manufactured from a full range of materials including:

  • Nickel Aluminium Bronze – ASTM B148 C95800
  • Nickel Aluminium Bronze  - DS02 747 PART 3
  • Gunmetal – DS02 830 PART 1
  • Bronze – ASTM B61/B62
  • Brass – BS1400 HTB1
  • Titanium – ASTM B367
  • Hastelloy®
  • Monel®
  • Alternative body & trim materials available on request

Features

  • Bolted Bonnet                                                                                                
  • Spring loaded piston

 

Options:

  • Integral or renewable seats
  • Drain plug 
  • Resilient seat
  • Alternative threads: NPT, BSPP, BSPT

Specifications

  • ANSI B16.5 Flange Dimensions
  • ANSI B1-20.1 Screwed Ends
  • ANSI B16.10 Face to Face Length
  • ANSI B16.34 Wall Thickness
  • PED Conformity
  • Designed generally in accordance with: BSEN 12288 (formerly BS5154) 

PCV76/77 Optional loaded piston

SCV30/31 External mount

SCV34/35 Internal mount

PCV76/77 Optional loaded piston
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PCV76/77

Piston Check Valve

The PCV76/77 is a piston check valve, with or without a spring-loaded piston and screwed connections. Manufactured as standard in NiAlBr giving long service life on seawater applications. In conformance with the Pressure Equipment Directive 97/23/EC

Standard Range,
PCV76 with integral seat, Sizes: 1/2"  to 2" / Connections: Screwed.
PCV77 with renewable seat, Sizes: 1/2"  to 2" / Connections: Screwed.

Materials

Manufactured from a full range of materials including:

  • Nickel Aluminium Bronze – ASTM B148 C95800
  • Nickel Aluminium Bronze  - DS02 747 PART 3
  • Gunmetal – DS02 830 PART 1
  • Bronze – ASTM B61/B62
  • Brass – BS1400 HTB1
  • Titanium – ASTM B367
  • Hastelloy®
  • Monel®
  • Alternative body & trim materials available on request

Features

  • Screwed Bonnet

 

Options:

  • Integral or renewable seats
  • Drain plug
  • Resilient seat
  • Spring or Non-loaded piston
  • Threads: NPT, BSPP, BSPT

Specifications

  • ANSI B1-20.1 Screwed Ends
  • ANSI B16.34 Wall Thickness
  • PED Conformity
  • Designed generally in accordance with: BSEN 12288 Series A (formerly BS5154) 
SCV30/31 External mount
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SCV30/31

Swing Check Valve

The SCV30/31 is a swing check valve, with  externally accessible disc shaft and integral cast flanges. Manufactured as standard in NiAlBr giving long service life on seawater applications. In conformance with the Pressure Equipment Directive 97/23/EC

Standard Range,
SCV30 with integral seat, 
            Sizes: 1/2" to 1-1/2" & 14" to 24" / Connections: ANSI 150 & 300.
SCV31 with renewable seat, 
            Sizes: 14" to 24" / Connections: ANSI 150 & 300.

Materials

Manufactured from a full range of materials including:

  • Nickel Aluminium Bronze – ASTM B148 C95800
  • Nickel Aluminium Bronze  - DS02 747 PART 3
  • Gunmetal – DS02 830 PART 1
  • Bronze – ASTM B61/B62
  • Brass – BS1400 HTB1
  • Titanium – ASTM B367
  • Hastelloy®
  • Monel®
  • Alternative body & trim materials available on request

Features

  • Retaining pin through disc nut prevents backing off in service.                           
  • External gland seal for ease of maintenance
  • Gland access through both sides of body 
  • Disc arm with angle provides improved sealing

 

Options:

  • Integral or renewable seats
  • Drain plug
  • Spring return

Specifications

  •  ANSI B16.5 Flange Dimensions
  • ANSI B16.10 Face to Face Length
  • ANSI B16.34 Wall Thickness
  • PED Conformity
  • Designed generally in accordance with: BSEN 12288 Series A (formerly BS5154) 
SCV34/35 Internal mount
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SCV34/35

Swing Check Valve

The SCV34/35 is a swing check valve, with  internally retained disc shaft and integral cast flanges. Manufactured as standard in NiAlBr giving long service life on seawater applications. In conformance with the Pressure Equipment Directive 97/23/EC

Standard Range,
SCV34 with integral seat, Sizes: 2" to 12" / Connections: ANSI 150 & 300.
SCV35 with renewable seat, Sizes: 2" to 12" / Connections: ANSI 150 & 300.

Materials

Manufactured from a full range of materials including:

  • Nickel Aluminium Bronze – ASTM B148 C95800
  • Nickel Aluminium Bronze  - DS02 747 PART 3
  • Gunmetal – DS02 830 PART 1
  • Bronze – ASTM B61/B62
  • Brass – BS1400 HTB1
  • Titanium – ASTM B367
  • Hastelloy®
  • Monel®
  • Alternative body & trim materials available on request

Features

  • Retaining pin through disc nut prevents backing off in service.
  • Simple internal fixing of disc & disc arm reduces leak paths and provides ease of maintenance
  • Disc arm with angle provides improved sealing.
  • Sleek body design reduces weight of the assembly and improves flow characteristics.

 

Options:

  • Integral or renewable seats
  • Drain plug

Specifications

  • ANSI B16.5 Flange Dimensions
  • ANSI B16.10 Face to Face Length
  • ANSI B16.34 Wall Thickness
  • PED Conformity
  • Designed generally in accordance with: BSEN 12288 Series A (formerly BS5154) 
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